Re: Cosmic rays?? [7:71402]
Well, cosmic rays can cause memory corruption, see for example: http://www.eetimes.com/news/98/1012news/ibm.html But if it always hits one particular device out of many at the same location, then there might be a more likely explanation, like ... I dunno, a bug?!? :) In any case, replacing the memory chips can't harm. And btw, instead of talking to the guys at the local Cisco office, go and open a case with TAC. Thanks, Zsombor At 02:46 AM 6/26/2003 +, Juan Carlos Perez wrote: We have a Cisco VIP card plugged into a 7500 router. Every once in a while the card just stops working and sometimes it gets stuck so hard that we have to reload the microcode. The last we did that, the router crashed and had to be reset (Ugly!). Well, it gets worse. After having to convince the guys at the local Cisco office to help us in this issue, they came to our facilities and began their analysis. To make a long story short, they told us that these problems were caused by cosmic rays! We almost fainted! Cosmic rays! Has anybody around here ever heard of this problem in this combo? Let me tell you this router is not installed in a spaceship or something like that, it4s just an ordinary datacenter. Any ideas about what the real problem might be? P. S. The router is using a recent version of IOS (newer than 12.1) and has been patched as per the Cisco site. Thanks a lot for any advice on this issue. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71414t=71402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
Oh, but I thought corporate management can never be wrong. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of n rf Sent: Wednesday, June 25, 2003 6:48 PM To: [EMAIL PROTECTED] Subject: RE: how about ccie salary in US? [7:71143] Jack Nalbandian wrote: The consensus among all corporate managers that I have dealt with is that CCIEs cannot obtain their status with at least some real experience. That is the consensus. Don't shoot me for it. \ Those corporate managers are wrong. They may want to look up the term lab-rat and see how it is commonly used, especially on this ng. Also, consider this. Those people who really think that the CCIE is impossible to pass without experience should freely support (or at least have no objection to) an idea I've been pushing for awhile - namely requiring a minimum number of years of verifiable networking experience in order to be eligible to take the exam, and for which all candidates would be subject to a random background check to catch liars - similar to how some companies run background checks on their job candidates. If it's categorically true that nobody could ever pass the lab without experience, then this new requirement should not be a problem, right? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71415t=71143 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco Store Su**ks Big time [7:71413]
I ordered a Documentation CD from the Cisco Store more than 2 months ago I'm still waiting. After two months of emails back and forth they told the CD is back ordered. I can believe Cisco service can be so bad. Is anyone out there willing to sell me a doc cd with a recent date. Thanks JB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71413t=71413 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Technology, Certification, Skill Sets, and Alt [7:71399]
n rf wrote in message news:[EMAIL PROTECTED] Back in the days when baseball was understood to be the ultimate expression of American values, this may have been true. Take each individual and weigh his/her strengths and weaknesses, consider the overall value of heir contribution, and decide on that basis. These days, when football is king, what does that say about our values? That we are all specialists and we are all easily replaced. In fact, in a football model, the ideal is to churn and burn. While the game of baseball itself may in the past have neatly symbolized American individualism, ironically you wouldn't know it from the salaries paid to baseball players in those supposedly gloried old days. Before the days of free agency, players were paid far far less than they would have been paid in an open and free market. You'd think that if anybody would have understood the importance of providing proper compensation for individual performance in line with the spirit of the game of baseball, it would have been the baseball team owners themselves. But I digress... so you want to talk baseball now. good for you!! true, traditionally baseball as a business was no reflective of free enterprise as we know and love it today. Nor was society at the time. What makes baseball a great sport in terms of what it teaches us, is that every position on the field has a certain skill set, and every position in the batting lineup has a certain skill set. A manager has to evaluate a player based upon his strengths and weaknessess both offensively and defensively. A grotesque example, but one that makes my point - if your entire team consisted of Barry Bonds and 24 clones, would you be better off than if you had some other combination of players. Barry Bonds may be the greatest hitter of all time, but can he pitch? Catch? Turn the double play? Would a team of Barry Bonds' offense make up for their shortcomings on defence? Interesting question, isn't it? translated into our daily lives, each of us has strengths and weaknesses, professional and personal. the question is in the grand scheme of things, do we contribute at least as much as we take? Allegorically speaking, this gets us back to skill sets in any field of endeavor. Should we be generalists? Specialists? Some combination of the two? my own employer has apparently thrown in the towel on this one. The higher ups are talking about specialization of the pre-sales folks, and assembling teams of skills for complex opportunities. essentially, we are migrating from a baseball mentality to a football mentality. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71416t=71399 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cosmic rays?? [7:71402]
Cosmic rays typically causes some bits to flip, hence the big need for parity memory (but now the more advanced and self-correctable ECC). Although, you are usually okay in an enclosed environment. (supposedly people get quite a few errors with modern memory if they sit it by the sun light... :) ) Errors can still occur without the assistance of cosmic rays arbitrarily flipping bits. (yes, it has been known as a legitimate cause for bit flippage, but doubtful that was your case). Sounds more like just a flakey card. All sorts of things could have caused the card to start acting flakey. Of course these types of failures can be generically funneled as software or hardware. Although which one is it hmmm. ;) Unless the hardware has some super diagnostics (ever see some of those high end Sun workstations?), might have to do the old fashioned way and isolate the problem (either software or hardware) and try to move from there. i.e. can you get a replacement card? It can be the card, interconnect on the router, router itself (motherboard, memory...), but more likely the other two). How long has the card worked before in the past? On what version of code? Was there any increase in loads after moving to the latest version? Any patterns of usage that can repeat the error? Can they be cross referenced to any known bugs? If you can repeat the error with a certain combination of actions, it leans a bit more towards software. Curious, so if the diagnosis was cosmic rays... what was their proposed solution? I hope it was not... oh well, crap happens, good luck! We have a Cisco VIP card plugged into a 7500 router. Every once in a while the card just stops working and sometimes it gets stuck so hard that we have to reload the microcode. The last we did that, the router crashed and had to be reset (Ugly!). Well, it gets worse. After having to convince the guys at the local Cisco office to help us in this issue, they came to our facilities and began their analysis. To make a long story short, they told us that these problems were caused by cosmic rays! We almost fainted! Cosmic rays! Has anybody around here ever heard of this problem in this combo? Let me tell you this router is not installed in a spaceship or something like that, it4s just an ordinary datacenter. Any ideas about what the real problem might be? P. S. The router is using a recent version of IOS (newer than 12.1) and has been patched as per the Cisco site. Thanks a lot for any advice on this issue. -Carroll Kong Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71418t=71402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
David Vital wrote: My frame of reference must just be so dramatically different from a lot of the other's here. I don't understand what all the griping is about. I read a quote in an article the other day that just rings totally true to me. Nobody is worth $200,000 a year. NOBODY. If you can get it, more power to you. But if you were getting that or $100,000 a year and suddenly you can't and the only thing you can get is a 70K or 80 K job... Even in another area.. That's astounding to me that you would be so upset . But maybe it's why you made that kind of money and I never have. You believe you can and I'm smiling all the way to the bank with less. I guess the picture all depends on the angle you are viewing it from. Well, first of all, I never said anything about them being upset. Those people who I referred to are simply making an unemotional, yet perfectly logical choice, which is to leave the industry. Simply put - people are going to follow the path that they think will lead them to their life goals, and if networking looks unpromising, then they will choose something else. Nobody said anything about being upset. Second of all, I emphatically disagree that nobody is worth $200,000 year. I agree that not many people are worth that. But to say that nobody is worth that is simply false. Shaquille O'Neal and Kobe Bryant, for example, are worth that and far more, simply because people are willing to cough up for very expensive tickets to see them play. They are directly responsible for earning boatloads of money for the Lakers so it is entirely fair that they get paid well. With apologies to Mr. Duncan, Shaq and Kobe are the 2 best players in basketball and they deserve to be paid accordingly. Or consider the salesmen at your company. Those star salesmen who are really bringing in the bacon deserve to be paid very well. (Those salesmen who are bringing in nothing deserve to be paid nothing). I know a bunch of salesmen who make over a quarter-million a year - but that's because they are directly responsible for bringing in millions of dollars of business into their companies. We are not talking about some secretary or some janitor that just so happen to be working at a startup that gets big and now think that their mere presence means they deserve to be millionaires - we're talking about people who are directly responsible for the success of the company in that they are extremely difficult to replace with somebody else (heck, Shaq is essentially impossible to replace), and for which their presence is directly linked to the success of the company (how many championships would the Lakers have won without Shaq and Kobe?). The point is, some people really are worth massive amounts of money. Not a lot, obviously. But some. Some people really do have a set of unique skills that makes them unusually valuable in the market. Tom Hanks is arguably the best actor of our generation. Barry Bonds may be the best baseball player in history. These guys deserve all the financial success that they can get. Let's take it to the networking field. Vint Cerf and Bob Kahn deserve all the success and accolades they can get. After all, they are arguably the 2 most important network engineers in history, for they directly invented much of the underlying technology of the Internet. If there are network engineers who deserve $200,000 salaries, it's these 2 guys. I think those guys are doing fairly well for themselves, though. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71417t=71143 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Subinterfaces [7:71421]
Hi, Any ideas on why encapsulation is not allowed on individual FR subinterfaces but rather on the physical interface only..?? TIA Srivathsan Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71421t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multicast private ip address [7:71411]
Hi, We have some reserved address ranges as follows: 224.0.0.0 to 224.0.0.255 and 239.0.0.0 to 239.255.255.255. You can check more details on multicasting. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71422t=71411 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
I would think that the physical interface can only support 1 type of layer1/2 Encapsulation at one time..either frame or hdlc etc.. Larry Letterman Cisco Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Srivathsan Ananthachari Sent: Wednesday, June 25, 2003 10:54 PM To: [EMAIL PROTECTED] Subject: Subinterfaces [7:71421] Hi, Any ideas on why encapsulation is not allowed on individual FR subinterfaces but rather on the physical interface only..?? TIA Srivathsan Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71425t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Hi, Well, encapsulation is done prior to placing the packets(Frames) to the physical medium - I guess it should be done on the physical interface. I would be interested in what other members have to say, but I think it makes sense that it should be on the physical interface. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71424t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Larry, That is very correct, I think, and in a way agrees indirectly with my reasoning :) Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71426t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
DLCI Prioritization [7:71428]
In DLCI Prioritization , what's a primary DLCI , is it the dlci specified in the frame-relay interface dlci command ( is it XX ) ?? Can you create priority-dlci-group in a physical interface ( major interface like serial 0 for eg., I understand it can be done in a sub-interface )..?? /Srivathsan Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71428t=71428 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? I hope I'm not draggin it.../ Srivathsan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mwalie W Sent: Thursday, June 26, 2003 12:42 PM To: [EMAIL PROTECTED] Subject: RE: Subinterfaces [7:71421] Hi, Well, encapsulation is done prior to placing the packets(Frames) to the physical medium - I guess it should be done on the physical interface. I would be interested in what other members have to say, but I think it makes sense that it should be on the physical interface. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71427t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Hi, I think your questions are quite in order and there is no reason to feel that you are dragging it on What is the purpose of encapsulation (data-link layer)? To enable transportation of upper-layer data on the physical medium, right? It may help in this particular case to look at, for example, the fields that comprise the Frame Relay frameFlags, Address, data, FCS, Flags. The Address field contains the DLCI, representing the connection between a DTE and the Switchthis is a layer 2 address (DLCI) So, the encapsulation should actually be on the physical interface, not the software (sub)interface. May be:) Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71430t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
change my groupstudy e-mail address [7:71431]
Hi, Hi do i change my groupstudy e-mail address I want to change the e-mail address where i get all the groupstudy mails in... Can someone help me? Thank you Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71431t=71431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Variables to use with Banner [7:71437]
Hi all. I was wondering if anyone knew of a way or a variable that I can use to display the source IP address on the login banner for someone telnetting into the router? I know I can display the hostname, domain, line and line-description but I cant find or know if there is a way to display the source IP address. Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71437t=71437 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Urgent: Async serial modem connection [7:71436]
I have a 2522 and a 1720.I want to setup the 2522 so that it will dial via a serial port using a modem that is attached.I have a DB60 to DB25 DTE cable for that.The router must dial the AUX port on the 1720 for use in out of band management.The 2522 does not want to dial out. Could someone please look at my config and maybe help. Thanks Cisco 2522 IOS (tm) 2500 Software (C2500-JS40-L), Version 11.3(6)T, RELEASE SOFTWARE (fc1) version 11.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname router1 ! ! username router2 password 0 ip subnet-zero chat-script test ATDT\T TIMEOUT 120 CONNECT \C ! ! ! ! interface Loopback0 ip address 192.168.0.1 255.255.255.0 ! interface Ethernet0 no ip address shutdown ! interface Serial0 no ip address no ip mroute-cache shutdown ! interface Serial1 no ip address shutdown ! interface Serial2 physical-layer async no ip address encapsulation ppp bandwidth 9600 dialer in-band dialer-group 1 async mode dedicated ! interface Serial3 no ip address shutdown ! interface Serial4 no ip address shutdown ! interface Serial5 no ip address shutdown ! interface Serial6 no ip address shutdown ! interface Serial7 no ip address shutdown ! interface Serial8 no ip address shutdown ! interface Serial9 no ip address shutdown ! interface BRI0 no ip address shutdown ! interface Dialer3 ip unnumbered Loopback0 encapsulation ppp dialer in-band dialer idle-timeout 20 dialer map ip 192.168.0.2 name Router1 modem-script test broadcast 0125417453 dialer hold-queue 15 dialer load-threshold 1 either dialer-group 1 no cdp enable ppp authentication chap ! ip classless ip route 192.168.0.2 255.255.255.255 Dialer3 ! dialer-list 1 protocol ip permit ! ! line con 0 line 2 modem InOut modem autoconfigure type default transport input all autohangup line aux 0 line vty 0 4 login ! end Dialer3 is up (spoofing), line protocol is up (spoofing) Hardware is Unknown Interface is unnumbered. Using address of Loopback0 (192.168.0.1) MTU 1500 bytes, BW 56 Kbit, DLY 2 usec, rely 255/255, load 1/255 Encapsulation PPP, loopback not set DTR is pulsed for 1 seconds on reset Last input never, output never, output hang never Last clearing of show interface counters never Input queue: 0/75/0 (size/max/drops); Total output drops: 0 Queueing strategy: weighted fair Output queue: 0/1000/64/0 (size/max total/threshold/drops) Conversations 0/0/256 (active/max active/max total) Reserved Conversations 0/0 (allocated/max allocated) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions Serial2 is up (spoofing), line protocol is up (spoofing) Hardware is CD2430 in async mode MTU 1500 bytes, BW 9600 Kbit, DLY 10 usec, rely 255/255, load 1/255 Encapsulation PPP, loopback not set, keepalive not set DTR is pulsed for 5 seconds on reset LCP Closed Closed: CDPCP Last input never, output 00:08:54, output hang never Last clearing of show interface counters never Queueing strategy: fifo Output queue 0/10, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 240 packets output, 5760 bytes, 0 underruns 0 output errors, 0 collisions, 23 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions Cisco 1720 IOS (tm) C1700 Software (C1700-SY-M), Version 12.2(4)YB, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) Synched to technology version 12.2(6.8)T2 Current configuration : 1254 bytes ! version 12.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname router2 ! enable password ! username router1 password 0 ip subnet-zero ! ! no ip domain-lookup ! chat-script Dialout ABORT ERROR ABORT BUSY AT OK ATDT \T TIMEOUT 45 CONNECT \c ! ! ! interface Loopback0 ip address 192.168.0.2 255.255.255.0 ! interface BRI0 no ip address shutdown ! interface FastEthernet0 no ip address shutdown speed auto ! interface Serial0 no ip address shutdown ! interface Async5 no ip address encapsulation ppp dialer in-band dialer pool-member 20 async default routing ppp authentication chap callin ! interface Dialer10 ip unnumbered Loopback0 encapsulation ppp dialer pool 20 dialer remote-name router1 dialer idle-timeout 900
Re: Boot problem with new 6513 [7:71390]
I assume you have OS somewhere on this box. If the OS is on bootflash, from the ROMMON prompt try boot bootflash:filename You should be able to verify a files existance by doing a dir bootflash: Dave Ron wrote: I have a new 6513 Catalyst switch and am getting the following when I boot the device: Autoboot: failed, BOOT string is empty rommon 1 Can someone lead me in the right direction on what to do to get the boot string set up properly? -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 Government can do something for the people only in proportion as it can do something to the people. -- Thomas Jefferson Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71438t=71390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Urgent: Async serial modem connection [7:71436]
Shane Stockman 6/26/03 8:04:01 AM I have a 2522 and a 1720.I want to setup the 2522 so that it will dial via a serial port using a modem that is attached.I have a DB60 to DB25 DTE cable for that.The router must dial the AUX port on the 1720 for use in out of band management.The 2522 does not want to dial out. Could someone please look at my config and maybe help. Thanks Cisco 2522 IOS (tm) 2500 Software (C2500-JS40-L), Version 11.3(6)T, RELEASE SOFTWARE (fc1) hostname router1 ! ! username router2 password 0 ip subnet-zero chat-script test ATDT\T TIMEOUT 120 CONNECT \C interface Serial2 physical-layer async no ip address encapsulation ppp bandwidth 9600 dialer in-band dialer-group 1 async mode dedicated ! Take this with a grain of salt because I'm pulling this from the rear-most vaults of my brain. It seems to me that you want to use 'dialer dtr' on the serial interface so that it raises DTR when it wants to dial. Then you configure your modem with the number you want to dial and set it to dial out when it sees DTR go high. That might be the trick, or it might not. :-) HTH, John RFC 1855 Compliant (apologies to Mr. Ridder) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71439t=71436 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Hi, since you also brought in the network layer into the discussion, I think it would be good to discuss some more generic questions than what you asked originally (specifically about serial/frame relay): a.) Why do I need to assign an encapsulation on the physical interface? b.) Why can I have only one encapsulation on a physical interface? c.) Why can't I specify an encapsulation on the subinterface level? My answers: a.) Encapsulation in this context really means data format. The purpose of specifying an encapsulation on the physical interface is to let the router know what is the ultimate format that should enter and especially *leave* the router on that particular *physical* interface. You can't receive/send data on a subinterface per se, you can only *logically* assign the already received data to a subinterface based on the information you extracted from the data you already received. So what would you do without having an encapsulation assigned to the physical interface? Would you check for every possible L2 format, say ATM cells on Ethernet interfaces? :) b.) If the encapsulation/decapsulation is done in hardware, and the interface hardware supports only one encapsulation per physical interface at a time, as Larry alluded to earlier, then you obviously can have only one encapsulation per physical interface. More importantly though: how would you decide in which format the information needs to be sent out if you had more than one encapsulation? c.) In general, you can. In the case of Ethernet interfaces for instance, you can specify encapsulation on a subinterface level. In fact I seem to remember that you *had* to specify it on a subinterface level for a while, and it was in fact the encapsulation type that selected the subinterface. The reason for this behavior is that Ethernet has two sub-layers within Layer 2, so even there you have an implied encapsulation assigned to the physical interface (the lower of the two sub-layers, the IEEE 802.3/Ethernet II format), and only the higher layer (layer 802.2) encapsulation is assigned to a subinterface. There was a lengthy discussion about Ethernet encapsulations on this list a few days ago, btw. At this point, the more specific question is in order: d.) Why can I not specify any encapsulation on a Serial sub-interface in IOS? Well, perhaps because the encapsulation you specified at the physical level (see above why you have to have that) took care of everything that you would characterize as encapsulation. This of course doesn't mean that all the packets assigned to a subinterface are the same, but for some reason we don't speak about IP encapsulation vs. IPX encapsulation and the like. If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? Network addresses don't specify the data format, they are the data themselves. If you wanted to ask how come I can run IP and IPX on the same interface, then the answer is because something at a lower layer will usually indicate what kind of packet you are receiving. Thanks, Zsombor At 08:55 AM 6/26/2003 +, Srivathsan Ananthachari wrote: If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? I hope I'm not draggin it.../ Srivathsan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mwalie W Sent: Thursday, June 26, 2003 12:42 PM To: [EMAIL PROTECTED] Subject: RE: Subinterfaces [7:71421] Hi, Well, encapsulation is done prior to placing the packets(Frames) to the physical medium - I guess it should be done on the physical interface. I would be interested in what other members have to say, but I think it makes sense that it should be on the physical interface. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71440t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Fwd: Re: Cisco Store Su**ks Big time [7:71413]
Well, since my message to was undeliverable due to error 550, mailbox unavailable, let me send it to groupstudy... although I am not quite sure if I want to help someone with a fake email address. :) Thanks, Zsombor Geez, you mean the CD that comes with the routers? I throw away at least 50 of them every year, so I can send you one free of charge. I'm not sure what's the latest I can find though. Let me know if you are interested and I'll look around. Thanks, Zsombor At 04:45 AM 6/26/2003 +, J B wrote: I ordered a Documentation CD from the Cisco Store more than 2 months ago I'm still waiting. After two months of emails back and forth they told the CD is back ordered. I can believe Cisco service can be so bad. Is anyone out there willing to sell me a doc cd with a recent date. Thanks JB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71441t=71413 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
2501 Error [7:71445]
Hello I keep getting the following error message from a 2501 I was recently given. System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface IP parameters for netbooting: Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n No usable interfaces System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 1525 O'Brien Drive Menlo Park, California 94025 3000 Bootstrap Software (IGS-RXBOOT), Version 9.14(9), RELEASE SOFTWARE (fc1) Patchlevel = 9.1(12.6) Copyright (c) 1986-1994 by cisco Systems, Inc. Compiled Wed 28-Sep-94 14:10 by chansen ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY cisco 2500 (68030) processor (revision D) with 16380K/2048K bytes of memory. Processor board serial number 01560488 DDN X.25 software, Version 2.0, NET2 and BFE compliant. 1 Ethernet/IEEE 802.3 interface. 2 Serial network interfaces. 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Device not programmable) --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n Press RETURN to get started! Does anyone have any info or even better a solution Thanks in advance Adrian Does anyone have any info or even better a solution Thanks in advance Adrian Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71445t=71445 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BGP routes [7:71442]
Dear all What is the benefits of receiving the following BGP routes 1. Full routes 2. Partial routes 3. No routes Regards, kws Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71442t=71442 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Subinterfaces [7:71421]
Your point about frame map statements and layer 3 addresses brings up and interesting point. You CAN have a different kind of frame-relay encapsulation on different PVCs, and you do this with frame relay map statements. I don't have time to test it now, but I remember learning that to use frame relay IP TCP header compression, you have to use the proprietary Cisco frame relay encapsulation. So if you want to use frame relay IP TCP header compression or RTP header compression on a PVC, you configure compression using a frame map statement and that PVC then uses Cisco FR encaps (I think it is automatically transformed into a cisco FR encaps PVC). Similarly, if you have frame relay IP TCP header compression on the physical interface, you can turn off compression on a per-PVC basis using your frame map statements (nocompress comes at the end). So, you CAN have different encapsulations on a per PVC, sort of. I think all this business of cisco encapsulation working on a PVC when the interface is set to ietf (and the frame relay switch is configured for ietf) works because the FR switch doesn't really care what kind of FR encapsulation is used on each PVC, while it does care a lot about the lmi-type. The remote router needs to be set to the correct kind of FR encapsulation, though (but, again, this can be set per PVC.) Please feel free to correct me if I am wrong in any particular. I would hate to have misremembered all or some of this. Tom Larus, CCIE 10,104 Srivathsan Ananthachari wrote in message news:[EMAIL PROTECTED] If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? I hope I'm not draggin it.../ Srivathsan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mwalie W Sent: Thursday, June 26, 2003 12:42 PM To: [EMAIL PROTECTED] Subject: RE: Subinterfaces [7:71421] Hi, Well, encapsulation is done prior to placing the packets(Frames) to the physical medium - I guess it should be done on the physical interface. I would be interested in what other members have to say, but I think it makes sense that it should be on the physical interface. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71446t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Probably the dumbest question that will be asked all day [7:71447]
I have a router (actually a pair of them in HSRP but that's irrelavent) that connects two networks in non-contiguous IP address ranges through a 100MB F/E TX port on the inside to an ISP network on the outside, also via a 100MB F/E TX port, at a colo facility. I have a half of a hundred MB pipe to the outside world. The two networks behind the router are independent of each other, seperated by PIX's behind the routers but, on occasion, they do communicate with each other. I currently have a primary and secondary IP address set on the inside F/E interface, one for each network. I've never seen any mention if sub-interfaces being used in Ethernet or Fast Ethernet interfaces in any Cisco literature. They primarily seem to be mentioned in regards to serial interfaces. Is there an advantage to using sub-if's here over a primary and secondary IP address? Any packet filtering is handled by the PIX's so I don't ever foresee the use of access-lists on the router. This router simply routes packets. I don't foresee the use of more than two networks inside but I suppose that's a slight possibility down the road if I would need more IP addresses and couldn't get contiguous addresses. I'm not sure if you can use more than a single secondary address on an interface or if you can pnly use a single one. I guess I'm not sure if recommended practice would be to always use sub-if's when connecting more than one network to any interface, use sub's only with serial i/f's and use primary/secondary addresses with F/E interfaces or if it's time to consider adding more F/E modules with 2 or more networks. I've used this primary/secondary config for a couple of years and it's worked fine but, as my colo facility is Sprint and they've decided to get out of the hosting biz, it would be a good time for me to reconfigure things during the move if there is an advantage in doing so. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71447t=71447 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: serial interface and pinging [7:71391]
Weird but useful. Great way to troubleshoot a serial line. Divide and conquer. The equipment at each end can be taken off line (one end at a time) and a loopback put in place. The other end pings its own address. The ping packets traverse the line to the loopback and return. Various bit patterns can be used. If the problem clears, there's a good indication the off-line equipment is at fault. -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 25, 2003 9:40 PM To: [EMAIL PROTECTED] Subject: RE: serial interface and pinging [7:71391] Yes, it's true that when you ping your own serial interface, the ping actually crosses the serial link! You can also see evidence of it by enabling debugging on the other side. When I first saw this documented on a Cisco page, I submitted a documentation bug report. :-) I guess it's the only way you'll get a response? It seems awfully weird though... Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71443t=71391 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Larry Letterman wrote: I would think that the physical interface can only support 1 type of layer1/2 Encapsulation at one time..either frame or hdlc etc.. A physical interface can support more than one encapsulation. It just depends on who it thinks is going to understand the encapsulation. The router talks to the first switch in the Frame Relay cloud, but it could also talk to more than one router across the cloud. To talk to the switch you have to have the right LMI, as we all know. The encapsulation command has to do with the router(s) at the other end. They could be using cisco or IETF and there's no good reason for Cisco to make it difficult for this to be different for different PVCS to different routers. Actually Cisco doesn't make it all that difficult. You can add encapsulation to the end of a map statement. Priscilla Larry Letterman Cisco Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Srivathsan Ananthachari Sent: Wednesday, June 25, 2003 10:54 PM To: [EMAIL PROTECTED] Subject: Subinterfaces [7:71421] Hi, Any ideas on why encapsulation is not allowed on individual FR subinterfaces but rather on the physical interface only..?? TIA Srivathsan Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71449t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
Jack Nalbandian wrote: Oh, but I thought corporate management can never be wrong. I never said that. Corporate management can indeed be wrong - but not for long. Slowly but eventually, the free market adjusts. For example, right now, what if Harvard all of a sudden got really easy - easy to be admitted to, easy to graduate from, just all-around easy? For a few years, people wouldn't know and those guys who happened to be Crimson during that time would be living it up, because people would be thinking that they're just as good as previous alum, when they're not. But eventually word would get out, and the value of that degree would plummet. The same thing happened with the ccie. It took awhile for information about the 1-day change to filter out, but eventually it did and now all new CCIE's are, unfortunately, paying the price. And just like what would happen if Cisco decided to restore the rigor of the exam - for awhile, nobody would notice but eventually people would discover that the new ccie's really are surprisingly good and they would adjust accordingly. But I know where you're going, you want to take this back to the old discussion of how you believe companies are slowly changing to de-emphasize the college degree for hiring purposes (see, I have my own decoder ring too). Unfortunately, I cannot find any evidence of such a change, and if anything, I am finding the exact opposite. Consider the following articles: ...the wage ratio between college and high school graduates reversed and began a long-term rise. By 1985, the ratio had reached 1.6, and by 1994, it reached nearly 1.8. This pattern has also appeared in other countries... http://www.hawaii.gov/dbedt/hecon/he11-98/value.html The main index of the return to human capital investment, the Dow Jones Average of the labor market as it were, is the wage premium paid to workers with a college degree relative to the wage for those with just a high school diploma. In 1980, this premium was about 35 percent (close to its all time low); by the mid–1990s, the college wage premium had risen to an all time high of over 70 percent (roughly double its level just fifteen years earlier). The rise in the college premium was mirrored in other educational returns as well. The premium for a graduate degree, like those being conferred on many of you here today, has also doubled, from roughly 45 percent in 1980 to more than 90 percent by the mid–1990s. Hence, measured broadly, the economic value of higher education roughly doubled in the fifteen years from 1980 to 1995, a rather incredible change. http://www.uchicago.edu/docs/education/record/5-28-98/451convocation.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71419t=71143 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Program will be migrating to IOS 12.2 From July 7 2003 [7:71448]
Can someone tell me, if the following Routers will support Cisco IOS 12.2? and where i can find these IOS. 2501 (16D/16F)(2S,1E) 2503 (16D/16F)(2S,1E,1ISDN) 2511 (16D/16F)(2S,1E,16Asyn) 2522 (16D/16F)(10S,1E,1ISDN) Thanks A. Braganza Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71448t=71448 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
Jeez, That is ridiculous, the program is run by Cisco, a private corporation. It is not a government entity and requiring those types of prerequisites makes no sense. How do you quantify experience anyway? What about a guy who has fifteen years in the industry, gets his CCIE but has worked on the same technology, same network etc for years, he is not working with new technology so has no real experience with it either. A labrat as you call it has taken the time to explore the new stuff and will at least have an idea how to work with it in a production environment. There are two side to this arguement but I think there are a few who seem to be angry that a motivated individual is able to study and pull off something that they believe is reserved for only experienced engineers. It would not be in Cisco's best interest to load the CCIE with unnecessary baggage. The fact is that if you can pass the test you are probably an above average guy technically and have the potential to learn and master just about anything that could reasonably be expected of a network engineer. Regards, Douglas Mizell CCNP/CCDP From: n rf Reply-To: n rf To: [EMAIL PROTECTED] Subject: RE: how about ccie salary in US? [7:71143] Date: Thu, 26 Jun 2003 01:48:01 GMT Received: from mc9-f36.bay6.hotmail.com ([65.54.166.43]) by mc9-s13.bay6.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Wed, 25 Jun 2003 20:12:30 -0700 Received: from groupstudy.com ([66.220.63.9]) by mc9-f36.bay6.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Wed, 25 Jun 2003 20:12:07 -0700 Received: from groupstudy.com (localhost [127.0.0.1])by groupstudy.com (8.12.8p1/8.12.8) with ESMTP id h5Q1m2Kp018857GroupStudy Mailer; Thu, 26 Jun 2003 01:48:02 GMT Received: (from [EMAIL PROTECTED])by groupstudy.com (8.12.8p1/8.12.8/Submit) id h5Q1m24T018856GroupStudy Submission Server; Thu, 26 Jun 2003 01:48:02 GMT Received: from groupstudy.com (localhost [127.0.0.1])by groupstudy.com (8.12.8p1/8.12.8) with ESMTP id h5Q1m1Kp018851GroupStudy Mailer; Thu, 26 Jun 2003 01:48:01 GMT Received: (from [EMAIL PROTECTED])by groupstudy.com (8.12.8p1/8.12.8/Submit) id h5Q1m13K018850GroupStudy Submission Server; Thu, 26 Jun 2003 01:48:01 GMT X-Message-Info: KXYDjjzkRiDlBmn4YorfHSkwJ+8H7+i6 Message-Id: X-GroupStudy-Version: 3.1.1a X-GroupStudy: Network Technical Sender: [EMAIL PROTECTED] Precedence: bulk Return-Path: [EMAIL PROTECTED] X-OriginalArrivalTime: 26 Jun 2003 03:12:07.0637 (UTC) FILETIME=[B9E11050:01C33B90] Jack Nalbandian wrote: The consensus among all corporate managers that I have dealt with is that CCIEs cannot obtain their status with at least some real experience. That is the consensus. Don't shoot me for it. Those corporate managers are wrong. They may want to look up the term lab-rat and see how it is commonly used, especially on this ng. Also, consider this. Those people who really think that the CCIE is impossible to pass without experience should freely support (or at least have no objection to) an idea I've been pushing for awhile - namely requiring a minimum number of years of verifiable networking experience in order to be eligible to take the exam, and for which all candidates would be subject to a random background check to catch liars - similar to how some companies run background checks on their job candidates. If it's categorically true that nobody could ever pass the lab without experience, then this new requirement should not be a problem, right? _ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71432t=71143 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
But then the next problem is how many years of experience is considered valid? Honestly, I do not think the number of years of experience means that much a fair number of the time. Why? Well, it depends on the quality of the experience, in my book. Advanced troubleshooting, initial deployments, fixing broken deployments, putting out serious fires and network meltdowns, isn't that worth a bit more than... ho hum, I see the green light on the NMS. Let us talk more about bringing up a new T1 link and calling in Cisco TAC to help. Oh... got to recover a password again, let us call Cisco TAC again. Hrmp... using this /24 for this serial link sure seems to work at my last company. Let us do it again! (given the condition they have no valid reason to be using RIPv1 in this case either...). What are those pesky summaries used for again? Why is traffic being routed through my 56K link instead of the adjacent T1? This is the kind of stuff I hear. While I know there are plenty of bright guys with plenty of years of solid experience (you guys know who you are, this is not about you guys), since I work as a consultant, I am constantly seeing a lot of veteran senior network engineers who surprisingly have far more years of experience than me, but it is me fixing their problems and training them. Of course the people I consult for will need help or know a bit less, or else they would not be calling! ;) Sometimes it is just legitimate shortage of man power (I like those, then it is really working with people who know what they are doing, instead of baby feeding people who keep getting confused with that V-LAN thing). Let us just say, I know plenty of people who are NOT hurting for work in this department. I can tell you the people they are helping are NOT college graduates, but they are quite older and their resumes will be stacked with years of venerable experience. What do we call these guys? If someone is spending quite some time in a NOC or management/watchdog mode, how much real experience are they really acquiring? I would say they are growing at a ridiculously slow rate. Are they to blame? Hmmm not necessarily. Sure they could educate themselves, but remember, self-education is not worth anything to HR... :) Most companies are conservative, and by all means they should be. That is part of the basics of systems administration. Test the latest code, do not run bleeding edge, etc. The goal of most bigger companies is good maintenance and uptime. This goal is dichotomous to the goal of learning which is new deployments, testing slightly worn in technology. A smaller company pushes more towards the new deployment, but then you lose on the conservative change control practices experience. So, HR wants people from big name firms, yet, odds are they were router caressers and not really the troubleshooters. (Can we say... just call support and let them bail for us? Every big company I know of always buys this type of insurance ANYWAY). Yet, if you come from a small firm and DO all the dirty work (yah yah, those guys will buy the spare switch instead of the smartnet), the resume looks so much less impressive despite the fact that they might have harder technical experience. As for the change control experience, who knows? And honestly, that is a self- control issue vs something that really has to be learned. Okay so spend the 5 minutes to learn conservative change control. So, how do you test for the experience? Manager vouching is sooo susceptible to nepotism or good old fashioned old boys network. Also, how many managers have we met that know the technical ins and outs just as well as their grunts? I am sure there are a handful sitting in the cold minority. How can those people vouch technical excellence when they themselves are have nots? How are we sure we are not going to get the router caresser to enter the lab instead of lab-rats? How many legitimate people will we invalidate in the process? Look, first of all, I'm obviously not endorsing that anybody with x years of experience are automatically handed a ccie number. They would still have to pass the test just like anybody else. Therefore the idea is simple. You use a minimum number of years of experience to eliminate the labrats. So instead, you get router-caressers (hmmm, sounds like some people enjoy networking a little too much). You then eliminate those guys with the test itself - if that highly experienced person didn't actually learn how to do all those things you mentioned, then it's unlikely that he would pass the test. Now obviously, this is imperfect. You will still have some guys who carress routers (man, that just sounds disgusting) and then bootcamp their way to getting their ccie. I agree. But there is no perfect solution. It's better than what we have today, where labrats
Re: Cisco Store Su**ks Big time [7:71413]
I tried to reply to you directly, that was a nogo. So, here it is, http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=3031476285category=28034 Brian - Original Message - From: J B To: Sent: Wednesday, June 25, 2003 9:45 PM Subject: Cisco Store Su**ks Big time [7:71413] I ordered a Documentation CD from the Cisco Store more than 2 months ago I'm still waiting. After two months of emails back and forth they told the CD is back ordered. I can believe Cisco service can be so bad. Is anyone out there willing to sell me a doc cd with a recent date. Thanks JB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71423t=71413 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Technology, Certification, Skill Sets, and Alt [7:71399]
Wow, There are some big words being tossed around, I had to look one up in the dictionary. I subscribe to this list for technical insight from alot of people who are much smarter than I and willing to help because that is the type of people they are. I never expected a vocabulary lesson to boot, I learn something every time I take the time to read through this list. The things being discussed such as certification values, salaries, management styles etc. are all extremely subjective. I personally think it is rare in this industry today to find a position where you as a network professional are really a valued member of an organization. In most cases, unless the core business is IT then we are considered overhead, in some cases expensive overhead. Most managers I have worked for including my present management have a very vague idea of what a CCIE is and absolutely no clue what it takes to become one. For that matter, certifications period are window dressing in their opinion. It used to be fairly common for companies to encourage, reward and even fund technical training in pursuit of XYZ certification because it was in their interest as well. I have not had a manager in the last seven years who cared one way or the other if I pursued a certification and to get him/her to pony up to pay for it...forget it!! This industry has changed dramatically and has, but for a select few, become every man for himself. There is no loyalty in either direction and job security is now a buzzword for headhunters, it does not exist in most corporations today. No sour grapes here, I just see it for what it is and play my cards accordingly. Best of look to all, Regards, Douglas Mizell CCNP/CCDP From: n rf Reply-To: n rf To: [EMAIL PROTECTED] Subject: Re: Technology, Certification, Skill Sets, and Alt [7:71399] Date: Thu, 26 Jun 2003 03:26:04 GMT Received: from mc9-f8.bay6.hotmail.com ([65.54.166.15]) by mc9-s14.bay6.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Wed, 25 Jun 2003 21:15:05 -0700 Received: from groupstudy.com ([66.220.63.9]) by mc9-f8.bay6.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Wed, 25 Jun 2003 21:15:04 -0700 Received: from groupstudy.com (localhost [127.0.0.1])by groupstudy.com (8.12.8p1/8.12.8) with ESMTP id h5Q3Q5Kp028720GroupStudy Mailer; Thu, 26 Jun 2003 03:26:05 GMT Received: (from [EMAIL PROTECTED])by groupstudy.com (8.12.8p1/8.12.8/Submit) id h5Q3Q5i3028719GroupStudy Submission Server; Thu, 26 Jun 2003 03:26:05 GMT Received: from groupstudy.com (localhost [127.0.0.1])by groupstudy.com (8.12.8p1/8.12.8) with ESMTP id h5Q3Q4Kp028713GroupStudy Mailer; Thu, 26 Jun 2003 03:26:04 GMT Received: (from [EMAIL PROTECTED])by groupstudy.com (8.12.8p1/8.12.8/Submit) id h5Q3Q4wF028712GroupStudy Submission Server; Thu, 26 Jun 2003 03:26:04 GMT X-Message-Info: KXYDjjzkRiDlBmn4YorfHSkwJ+8H7+i6 Message-Id: X-GroupStudy-Version: 3.1.1a X-GroupStudy: Network Technical Sender: [EMAIL PROTECTED] Precedence: bulk Return-Path: [EMAIL PROTECTED] X-OriginalArrivalTime: 26 Jun 2003 04:15:04.0702 (UTC) FILETIME=[852F71E0:01C33B99] Back in the days when baseball was understood to be the ultimate expression of American values, this may have been true. Take each individual and weigh his/her strengths and weaknesses, consider the overall value of heir contribution, and decide on that basis. These days, when football is king, what does that say about our values? That we are all specialists and we are all easily replaced. In fact, in a football model, the ideal is to churn and burn. While the game of baseball itself may in the past have neatly symbolized American individualism, ironically you wouldn't know it from the salaries paid to baseball players in those supposedly gloried old days. Before the days of free agency, players were paid far far less than they would have been paid in an open and free market. You'd think that if anybody would have understood the importance of providing proper compensation for individual performance in line with the spirit of the game of baseball, it would have been the baseball team owners themselves. But I digress... _ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71429t=71399 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: change my groupstudy e-mail address [7:71431]
I believe that the easiest way is to go to Pad, pad, http://www.groupstudy.com/ And unsubscribe, then subscribe again with your new address. There may a another way, but last time I had to change my I address this worked for me. HTH Best regards, Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: 26 June 2003 11:50 To: [EMAIL PROTECTED] Subject: change my groupstudy e-mail address [7:71431] Hi, Hi do i change my groupstudy e-mail address I want to change the e-mail address where i get all the groupstudy mails in... Can someone help me? Thank you Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71435t=71431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCNP Study Materials [7:71450]
Hello group. I know here we discuss our great big Frame Relays, HSRPs, VLANS, and all that good stuff. Although I'm posed with a problem. Does anyone here have study materials for the CCNP. They are changing the TEST and I'm not finished with my classes. I will even give FREE WEB HOSTING to those who help me. I don't like to beg but PLEEASE Gang. -pdfs -self test software -ccnp mentor ANYTHING would be higlhy appreciated Please email me at [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71450t=71450 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP routes [7:71442]
I would assume Convergence and the avoidance of this: http://www.cisco.com/warp/public/770/fn12942.html -Justin M. Morgenthaler KW S wrote in message news:[EMAIL PROTECTED] Dear all What is the benefits of receiving the following BGP routes 1. Full routes 2. Partial routes 3. No routes Regards, kws Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71451t=71442 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 2501 Error [7:71445]
.. and you installed some additional Flash. My guess is the old bootROMs don't recognize your new flash. Best bet is to update the bootROMs. - Just took a look at an old 2501 - it has Intel chips on the Flash - and did have old bootROMs. The ancient GroupStudy archives should have specific info on which Brands of Flash the old boxes used. -Original Message- From: Adrian Kirk [mailto:[EMAIL PROTECTED] Sent: Thursday, June 26, 2003 10:13 AM To: [EMAIL PROTECTED] Subject: 2501 Error [7:71445] Hello I keep getting the following error message from a 2501 I was recently given. System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface IP parameters for netbooting: Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n No usable interfaces System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 1525 O'Brien Drive Menlo Park, California 94025 3000 Bootstrap Software (IGS-RXBOOT), Version 9.14(9), RELEASE SOFTWARE (fc1) Patchlevel = 9.1(12.6) Copyright (c) 1986-1994 by cisco Systems, Inc. Compiled Wed 28-Sep-94 14:10 by chansen ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY cisco 2500 (68030) processor (revision D) with 16380K/2048K bytes of memory. Processor board serial number 01560488 DDN X.25 software, Version 2.0, NET2 and BFE compliant. 1 Ethernet/IEEE 802.3 interface. 2 Serial network interfaces. 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Device not programmable) --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n Press RETURN to get started! Does anyone have any info or even better a solution Thanks in advance Adrian Does anyone have any info or even better a solution Thanks in advance Adrian Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71455t=71445 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
UniverCD [7:71458]
I thought this URL might save some trouble for a few people: http://www.cisco.com/univercd/home/home.htm It's the periodically updated (always latest) version of the UniverCD. Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71458t=71458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCNP Tests [7:70632]
I think i heard something about July 7th, not sure Jarred Nicholls wrote: Hi, I was wondering...for the CCNP tests, how long do I have inbetween each of the 4 tests to take them all before they expire? Or, how long do I have to take all 4 of them before the ones i've taken and passed are null and void? I took the CCNP Routing June of 2002 and passed it, and I'm now finding the time to move into switching and everything elsemy CCNA expires Dec. 7th 2004 so I am going for CCNP before CCNA expires (obviously obviously). So, does anyone know when I have to pass all 4 CCNP tests before they become null/void? I appreciate it! Jarred Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71454t=70632 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2501 Error [7:71445]
(Device not programmable) Seems like you have a bad flash module. You may want to change one of the modules to see if the problem goes a way. Reza Adrian Kirk wrote in message news:[EMAIL PROTECTED] Hello I keep getting the following error message from a 2501 I was recently given. System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface IP parameters for netbooting: Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n No usable interfaces System Bootstrap, Version 4.14(9.1), SOFTWARE Copyright (c) 1986-1994 by cisco Systems 2500 processor with 16384 Kbytes of main memory Restricted Rights Legend Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) of the Commercial Computer Software - Restricted Rights clause at FAR sec. 52.227-19 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec. 252.227-7013. cisco Systems, Inc. 1525 O'Brien Drive Menlo Park, California 94025 3000 Bootstrap Software (IGS-RXBOOT), Version 9.14(9), RELEASE SOFTWARE (fc1) Patchlevel = 9.1(12.6) Copyright (c) 1986-1994 by cisco Systems, Inc. Compiled Wed 28-Sep-94 14:10 by chansen ERR: Invalid chip id 0x80B5 (reversed = 0x1AD ) detected in System flash % System flash query failed. Access will be RD-ONLY cisco 2500 (68030) processor (revision D) with 16380K/2048K bytes of memory. Processor board serial number 01560488 DDN X.25 software, Version 2.0, NET2 and BFE compliant. 1 Ethernet/IEEE 802.3 interface. 2 Serial network interfaces. 32K bytes of non-volatile configuration memory. 16384K bytes of processor board System flash (Device not programmable) --- System Configuration Dialog --- Refer to the 'Getting Started' Guide for additional help. Default settings are in square brackets '[]'. Configuring interface Ethernet0: Is this interface in use? [yes]: n Configuring interface Serial0: Is this interface in use? [yes]: n Configuring interface Serial1: Is this interface in use? [yes]: n Press RETURN to get started! Does anyone have any info or even better a solution Thanks in advance Adrian Does anyone have any info or even better a solution Thanks in advance Adrian Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71453t=71445 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Probably the dumbest question that will be asked all day [7:71457]
I never tried using sub's on the the LAN interface. I could have used VLAN's at the time I initially set it up but didn't see a need for it at the time (still don't unless it's the officiallly Cisco-blessed method and then I'd just be curious as to why). I just set up a secondary and then later on I got to wondering if I was doin' the right thing. It ain't broke. Guess I don't need to fix it. Thanks. -Original Message- From: Zsombor Papp [mailto:[EMAIL PROTECTED] Sent: Thursday, June 26, 2003 11:38 AM To: Mark Smith Cc: [EMAIL PROTECTED] Subject: Re: Probably the dumbest question that will be asked all day [7:71447] Ask your router. I did, and it said: % Configuring IP routing on a LAN subinterface is only allowed if that subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, or ISL vLAN. :) In other words, secondary IP addresses will do just fine. And btw you can have more than one per interface (up to 255, or so?). You might also want to check out the other thread about encapsulations and such. Thanks, Zsombor At 03:27 PM 6/26/2003 +, Mark Smith wrote: I have a router (actually a pair of them in HSRP but that's irrelavent) that connects two networks in non-contiguous IP address ranges through a 100MB F/E TX port on the inside to an ISP network on the outside, also via a 100MB F/E TX port, at a colo facility. I have a half of a hundred MB pipe to the outside world. The two networks behind the router are independent of each other, seperated by PIX's behind the routers but, on occasion, they do communicate with each other. I currently have a primary and secondary IP address set on the inside F/E interface, one for each network. I've never seen any mention if sub-interfaces being used in Ethernet or Fast Ethernet interfaces in any Cisco literature. They primarily seem to be mentioned in regards to serial interfaces. Is there an advantage to using sub-if's here over a primary and secondary IP address? Any packet filtering is handled by the PIX's so I don't ever foresee the use of access-lists on the router. This router simply routes packets. I don't foresee the use of more than two networks inside but I suppose that's a slight possibility down the road if I would need more IP addresses and couldn't get contiguous addresses. I'm not sure if you can use more than a single secondary address on an interface or if you can pnly use a single one. I guess I'm not sure if recommended practice would be to always use sub-if's when connecting more than one network to any interface, use sub's only with serial i/f's and use primary/secondary addresses with F/E interfaces or if it's time to consider adding more F/E modules with 2 or more networks. I've used this primary/secondary config for a couple of years and it's worked fine but, as my colo facility is Sprint and they've decided to get out of the hosting biz, it would be a good time for me to reconfigure things during the move if there is an advantage in doing so. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71457t=71457 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Probably the dumbest question that will be asked all day [7:71452]
Ask your router. I did, and it said: % Configuring IP routing on a LAN subinterface is only allowed if that subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, or ISL vLAN. :) In other words, secondary IP addresses will do just fine. And btw you can have more than one per interface (up to 255, or so?). You might also want to check out the other thread about encapsulations and such. Thanks, Zsombor At 03:27 PM 6/26/2003 +, Mark Smith wrote: I have a router (actually a pair of them in HSRP but that's irrelavent) that connects two networks in non-contiguous IP address ranges through a 100MB F/E TX port on the inside to an ISP network on the outside, also via a 100MB F/E TX port, at a colo facility. I have a half of a hundred MB pipe to the outside world. The two networks behind the router are independent of each other, seperated by PIX's behind the routers but, on occasion, they do communicate with each other. I currently have a primary and secondary IP address set on the inside F/E interface, one for each network. I've never seen any mention if sub-interfaces being used in Ethernet or Fast Ethernet interfaces in any Cisco literature. They primarily seem to be mentioned in regards to serial interfaces. Is there an advantage to using sub-if's here over a primary and secondary IP address? Any packet filtering is handled by the PIX's so I don't ever foresee the use of access-lists on the router. This router simply routes packets. I don't foresee the use of more than two networks inside but I suppose that's a slight possibility down the road if I would need more IP addresses and couldn't get contiguous addresses. I'm not sure if you can use more than a single secondary address on an interface or if you can pnly use a single one. I guess I'm not sure if recommended practice would be to always use sub-if's when connecting more than one network to any interface, use sub's only with serial i/f's and use primary/secondary addresses with F/E interfaces or if it's time to consider adding more F/E modules with 2 or more networks. I've used this primary/secondary config for a couple of years and it's worked fine but, as my colo facility is Sprint and they've decided to get out of the hosting biz, it would be a good time for me to reconfigure things during the move if there is an advantage in doing so. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71452t=71452 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Zsombor Papp wrote: c.) In general, you can. In the case of Ethernet interfaces for instance, you can specify encapsulation on a subinterface level. On an Ethernet subinterface you can specify the VLAN tagging method using an encapsulation command. That is specific to a router that is doing inter-VLAN routing and needs to tag frames and you want to specify ISL or IEEE 802.1Q tagging. In general you can't specify the encapsulation used on Ethernet interfaces or subinterfaces. 802.1Q isn't really an encapsulation, in that it inserts a shim rather than surrounding the original frame, but that's for another discussion. In fact I seem to remember that you *had* to specify it on a subinterface level for a while, and it was in fact the encapsulation type that selected the subinterface. The reason for this behavior is that Ethernet has two sub-layers within Layer 2, so even there you have an implied encapsulation assigned to the physical interface (the lower of the two sub-layers, the IEEE 802.3/Ethernet II format), and only the higher layer (layer 802.2) encapsulation is assigned to a subinterface. You can't tell an Ethernet interface to use 802.2 except within the IPX network commands. Maybe you're thinking of the 802.1Q VLAN tagging standard. There was a lengthy discussion about Ethernet encapsulations on this list a few days ago, btw. But that's not what the discussion said! ;-) Ethernet encapsulation depends on the upper layer, which isn't like encapsulation on a serial interface. IP uses Ethernet Version 2: Dest Src Type (no sublayers) BPDUs use IEEE 802.3 and 802.2 Dest Src Length DSAP SSAP Control CDP, VTP, AppleTalk use IEEE 802.3, 802.2, SNAP Dest Src Length DSAP SSAP Control SNAP IPX can use any of those three or novell-ether (raw) Dest Src Length Encapsulation is set with the IPX network-layer commands becuase IPX supports 4 methods. The only major exception is for VLAN tagging. Then you can specify encapsulation with a subinterface to say whether you want ISL or 802.1Q. Ethernet encapsulation behavior isn't much like encapsulation on serial interfaces, which can only be one of the major categories: HDLC, PPP, Frame Relay. But Frame Relay has 2 varieties. Priscilla At this point, the more specific question is in order: d.) Why can I not specify any encapsulation on a Serial sub-interface in IOS? Well, perhaps because the encapsulation you specified at the physical level (see above why you have to have that) took care of everything that you would characterize as encapsulation. This of course doesn't mean that all the packets assigned to a subinterface are the same, but for some reason we don't speak about IP encapsulation vs. IPX encapsulation and the like. If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? Network addresses don't specify the data format, they are the data themselves. If you wanted to ask how come I can run IP and IPX on the same interface, then the answer is because something at a lower layer will usually indicate what kind of packet you are receiving. Thanks, Zsombor At 08:55 AM 6/26/2003 +, Srivathsan Ananthachari wrote: If it's possible to assign a network address ( IP / IPX viz., ) to the FR sub-interface why not be able to specify encap as well..?? I hope I'm not draggin it.../ Srivathsan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mwalie W Sent: Thursday, June 26, 2003 12:42 PM To: [EMAIL PROTECTED] Subject: RE: Subinterfaces [7:71421] Hi, Well, encapsulation is done prior to placing the packets(Frames) to the physical medium - I guess it should be done on the physical interface. I would be interested in what other members have to say, but I think it makes sense that it should be on the physical interface. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71456t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Probably the dumbest question that will be asked all day [7:71459]
At 11:43 AM 6/26/2003 -0500, Mark Smith wrote: I never tried using sub's on the the LAN interface. I could have used VLAN's at the time I initially set it up but didn't see a need for it at the time (still don't unless it's the officiallly Cisco-blessed method and then I'd just be curious as to why). I just set up a secondary and then later on I got to wondering if I was doin' the right thing. It ain't broke. Guess I don't need to fix it. That's always a good guidance :), however I might have misunderstood the original question (I thought you were asking about subinterfaces without vlans). If you are interested in the advantage of using vlans over secondary IP addresses, then there are some. For example, vlans decrease the broadcast domain, ie. hosts on one VLAN won't drive hosts on other VLANs crazy by sending lots of broadcast packets. I also seem to remember that some routing protocols (OSPF or ISIS?) used to have some issues with secondary IP addresses. Unfortunately I don't recall the specifics. Thanks, Zsombor Ask your router. I did, and it said: % Configuring IP routing on a LAN subinterface is only allowed if that subinterface is already configured as part of an IEEE 802.10, IEEE 802.1Q, or ISL vLAN. :) In other words, secondary IP addresses will do just fine. And btw you can have more than one per interface (up to 255, or so?). You might also want to check out the other thread about encapsulations and such. Thanks, Zsombor At 03:27 PM 6/26/2003 +, Mark Smith wrote: I have a router (actually a pair of them in HSRP but that's irrelavent) that connects two networks in non-contiguous IP address ranges through a 100MB F/E TX port on the inside to an ISP network on the outside, also via a 100MB F/E TX port, at a colo facility. I have a half of a hundred MB pipe to the outside world. The two networks behind the router are independent of each other, seperated by PIX's behind the routers but, on occasion, they do communicate with each other. I currently have a primary and secondary IP address set on the inside F/E interface, one for each network. I've never seen any mention if sub-interfaces being used in Ethernet or Fast Ethernet interfaces in any Cisco literature. They primarily seem to be mentioned in regards to serial interfaces. Is there an advantage to using sub-if's here over a primary and secondary IP address? Any packet filtering is handled by the PIX's so I don't ever foresee the use of access-lists on the router. This router simply routes packets. I don't foresee the use of more than two networks inside but I suppose that's a slight possibility down the road if I would need more IP addresses and couldn't get contiguous addresses. I'm not sure if you can use more than a single secondary address on an interface or if you can pnly use a single one. I guess I'm not sure if recommended practice would be to always use sub-if's when connecting more than one network to any interface, use sub's only with serial i/f's and use primary/secondary addresses with F/E interfaces or if it's time to consider adding more F/E modules with 2 or more networks. I've used this primary/secondary config for a couple of years and it's worked fine but, as my colo facility is Sprint and they've decided to get out of the hosting biz, it would be a good time for me to reconfigure things during the move if there is an advantage in doing so. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71459t=71459 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Fwd: Re: Cisco Store Su**ks Big time [7:71413]
I'm Sorry I think I deleted the email address for reply It should work by now JBZsombor Papp wrote: Well, since my message to was undeliverable due to error 550, mailbox unavailable, let me send it to groupstudy... although I am not quite sure if I want to help someone with a fake email address. :) Thanks, Zsombor Geez, you mean the CD that comes with the routers? I throw away at least 50 of them every year, so I can send you one free of charge. I'm not sure what's the latest I can find though. Let me know if you are interested and I'll look around. Thanks, Zsombor At 04:45 AM 6/26/2003 +, J B wrote: I ordered a Documentation CD from the Cisco Store more than 2 months ago I'm still waiting. After two months of emails back and forth they told the CD is back ordered. I can believe Cisco service can be so bad. Is anyone out there willing to sell me a doc cd with a recent date. Thanks JB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71460t=71413 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Probably the dumbest question that will be asked a [7:71447]
It's not a dumb question, as far as I can tell, but it's awfully hard to parse due to your stream of consciousness style and lack of paragarpahs. White space is a good thing. :-) There's nothing wrong with IP secondary addresses as far as I know. They can come in handy. And yes you can have multiple ones. At some point you should design your network more hierarchically and get rid of them perhaps, but that's for another thread. The one caveat is that packets in and out the same interface, for the few cases that you mentioned that they do communicate (through this interface?), you need to enable fast switching. It's not on by default. And h... I can't remember the command. Maybe somebody else will remember it. The rumor that secondary addresses are bad has to do with IPX. When supporting more than one encap for IPX you can do it with secondary or subinterfaces. Cisco said they were going to discontinue support for secondary. I don't think they ever did. And they caused lots of confusion because people assumed they were talking about IP too, which they weren't. In the IP world, secondary addresses can be very useful, especially for what you're describing where you have two sets of addresses on one LAN, and maybe more than two in the future. Subinterfaces are for VLANs as mentioned in other messages (and IPX multiple encaps.) Priscilla Mark Smith wrote: I have a router (actually a pair of them in HSRP but that's irrelavent) that connects two networks in non-contiguous IP address ranges through a 100MB F/E TX port on the inside to an ISP network on the outside, also via a 100MB F/E TX port, at a colo facility. I have a half of a hundred MB pipe to the outside world. The two networks behind the router are independent of each other, seperated by PIX's behind the routers but, on occasion, they do communicate with each other. I currently have a primary and secondary IP address set on the inside F/E interface, one for each network. I've never seen any mention if sub-interfaces being used in Ethernet or Fast Ethernet interfaces in any Cisco literature. They primarily seem to be mentioned in regards to serial interfaces. Is there an advantage to using sub-if's here over a primary and secondary IP address? Any packet filtering is handled by the PIX's so I don't ever foresee the use of access-lists on the router. This router simply routes packets. I don't foresee the use of more than two networks inside but I suppose that's a slight possibility down the road if I would need more IP addresses and couldn't get contiguous addresses. I'm not sure if you can use more than a single secondary address on an interface or if you can pnly use a single one. I guess I'm not sure if recommended practice would be to always use sub-if's when connecting more than one network to any interface, use sub's only with serial i/f's and use primary/secondary addresses with F/E interfaces or if it's time to consider adding more F/E modules with 2 or more networks. I've used this primary/secondary config for a couple of years and it's worked fine but, as my colo facility is Sprint and they've decided to get out of the hosting biz, it would be a good time for me to reconfigure things during the move if there is an advantage in doing so. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71461t=71447 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
For Priscilla [7:71462]
I have been trying to get Troubleshooting Campus Networks for the longest time. I've met Joeseph B. He is one of the smartest guys I've ever encountered. Can you tell me PLEASE why your book is so hard to get? Mauricio H Fernandez Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71462t=71462 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Issue with 6509 [7:71468]
Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #3: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #4: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #5: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #6: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #7: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #8: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #9: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #10: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #11: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #12: Does anyone know what this means? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71468t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: For Priscilla [7:71462]
In my experience, networking books at the brick store are often related to certification, as that's a big market. (So is web technology, in all its various flavors -- the other 3 racks of books). Within the certification universe, MCS is _big_, CCNA is fairly big, the plus series (especially A+, but some of the others) are fairly big, and CISSP seems quite popular the past few months. CCIE books are often present (some of which are even good ;-)). But the middle-range or intermediate certification books are somehow always missing. I geenerally order from Amazon, or the author's website. http://www.troubleshootingnetworks.com/ Good luck! Annlee For good Mauricio H Fernandez wrote in message news:[EMAIL PROTECTED] I have been trying to get Troubleshooting Campus Networks for the longest time. I've met Joeseph B. He is one of the smartest guys I've ever encountered. Can you tell me PLEASE why your book is so hard to get? Mauricio H Fernandez Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71469t=71462 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: For Priscilla [7:71462]
Go to www.bookpool.com and order it. It cost $50.50 Reza Mauricio H Fernandez wrote in message news:[EMAIL PROTECTED] I have been trying to get Troubleshooting Campus Networks for the longest time. I've met Joeseph B. He is one of the smartest guys I've ever encountered. Can you tell me PLEASE why your book is so hard to get? Mauricio H Fernandez Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71467t=71462 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Probably the dumbest question that will be asked a [7:71472]
At 5:33 PM + 6/26/03, Priscilla Oppenheimer wrote: It's not a dumb question, as far as I can tell, but it's awfully hard to parse due to your stream of consciousness style and lack of paragarpahs. White space is a good thing. :-) There's nothing wrong with IP secondary addresses as far as I know. They can come in handy. And yes you can have multiple ones. At some point you should design your network more hierarchically and get rid of them perhaps, but that's for another thread. I think people tend to forget that secondaries and subinterfaces are not freely interchangeable, although they do have many common characteristics. Indeed, there are times when using secondaries on subinterfaces makes perfectly good sense. There are times to use secondaries alone (e.g., healing discontiguous networks on point-to-point lines). There are times to use VLANs alone (e.g., separating broadcast domains; connecting multiple physical LAN segments). The key difference is the L3:L2 relationship. Let me restrict this to broadcast media for simplicity. A subinterface assumes one subnet maps to one broadcast domain. A secondary address maps multiple subnets to the same broadcast domain. Mapping multiple subnets to a common broadcast domain can be bad for performance, especially if there are ill-formed multicast or broadcast implementations around. But if the multicasters are well disciplined, the combination of secondaries and subinterfaces, for example, can be very useful in supporting multiple DHCP servers on several subnets. A digression, I suppose, but one thing that I particularly hate is the ability to put a port into several VLANs. Cisco did this as a competitive response to a 3Com feature, and, as far as I'm concerned, it's to be condemned in IP networking. The feature made some sense in NetBIOS over data link, where you had to broadcast to resolve addresses, and there was no network layer. But now, if you are in an IP world, and someone says to use this technique to share a printer across several VLANs, you now put the constraint on the _host_ to be able to support secondaries. The one caveat is that packets in and out the same interface, for the few cases that you mentioned that they do communicate (through this interface?), you need to enable fast switching. It's not on by default. And h... I can't remember the command. Maybe somebody else will remember it. ip | ipx route-cache same-interface Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71472t=71472 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Issue with 6509 [7:71468]
Line card in slot 6 is bad, replace it..the error is related to a Hardware failure on the board... Larry Letterman Cisco Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, June 26, 2003 12:07 PM To: [EMAIL PROTECTED] Subject: Issue with 6509 [7:71468] Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #3: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #4: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #5: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #6: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #7: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #8: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #9: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #10: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #11: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #12: Does anyone know what this means? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71474t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Rate-limiting [7:71471]
Greetings, I need some pointers with rate-limiting and hopeing you guys can help me out. We have a DS3 ckt in one of our sites and need to limit their traffic to 8Mb to internal traffic and 2Mb if traffic destined to the web. My concern is packet drops when the threshold reachs either the 8 or 2 meg limit. Thanks, Gibran - Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71471t=71471 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Issue with 6509 [7:71468]
You have a BAD ASIC on your module. RMA baby! What kind of module is it? I have seen many issues with the 6348 blades as ASIC's failing. With the 6348 mod, ASIC's come in 12 port clusters per ASIC.. when the ASIC's fail to process, you get Coil errors.. You can either, move your connections to a different ASIC on the asme module, or blade, but your probably better off RMAing it in case of future problems.. HTH, [EMAIL PROTECTED] wrote: Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #3: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #4: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #5: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #6: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #7: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #8: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #9: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #10: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #11: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #12: Does anyone know what this means? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71473t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: For Priscilla [7:71462]
Thats funny. I was looking this morning. Amazon says they'll ship it and her other book in 24 hours http://www.amazon.com/exec/obidos/search-handle-url/index=booksfield-keywor ds=priscilla%20oppenheimersearch-type=ssbq=1/103-2498254-6602210 -Original Message- From: Mauricio H Fernandez [mailto:[EMAIL PROTECTED] Sent: Thursday, June 26, 2003 10:40 AM To: [EMAIL PROTECTED] Subject: For Priscilla [7:71462] I have been trying to get Troubleshooting Campus Networks for the longest time. I've met Joeseph B. He is one of the smartest guys I've ever encountered. Can you tell me PLEASE why your book is so hard to get? Mauricio H Fernandez Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71470t=71462 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Issue with 6509 [7:71468]
1. %SYS-3-SYS_LCPERR3:Module [dec]: Bus Asic #[dec] out of sync error This message indicates a multiple-synchronization problem between the bus ASIC and the port ASIC. The first [dec] is the module number. The second [dec] is the ASIC number. Recommended Action: Replace the module if the error occurs several times, or contact your technical support representative. Dave [EMAIL PROTECTED] wrote: Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #3: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #4: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #5: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #6: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #7: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #8: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #9: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #10: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #11: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #12: Does anyone know what this means? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 Government can do something for the people only in proportion as it can do something to the people. -- Thomas Jefferson Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71480t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP routes [7:71442]
i have configured all three for differant requirements. There is no benefit per se, it simply depends on the what your trying to accomplish and how your connected. Dave Justin M. Morgenthaler wrote: I would assume Convergence and the avoidance of this: http://www.cisco.com/warp/public/770/fn12942.html -Justin M. Morgenthaler KW S wrote in message news:[EMAIL PROTECTED] Dear all What is the benefits of receiving the following BGP routes 1. Full routes 2. Partial routes 3. No routes Regards, kws -- David Madland CCIE# 2016 Sr. Network Engineer Qwest Communications 612-664-3367 Government can do something for the people only in proportion as it can do something to the people. -- Thomas Jefferson Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71481t=71442 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
At 3:53 PM + 6/26/03, douglas mizell wrote: Jeez, That is ridiculous, the program is run by Cisco, a private corporation. It is not a government entity and requiring those types of prerequisites makes no sense. How do you quantify experience anyway? Several ways. In an actual certification context, the Nortel architect level certification requires that you submit five writeups of networks you have implemented, followed by an open-book design exercise that has realistic, not speed-typist, requirements. All of these writeups are graded by a board of human experts, which obviously limits the scalability of the program. The idea of presenting case studies is one of the methods used by medical specialty boards. Admittedly, they have the advantage of being able to approve residencies (or equivalents for nonphysicians), and require successful completion of an appropriate program. But for board certification, there are still oral examinations and case presentations. In the pre-1995 days of CCSI certification, there was no exam per se, just a variable period -- often several weeks -- of in-person oral exams, team and observed teaching, and lab exercises, that still just got you a provisional certification. Your full certification came after several months of satisfactory class evaluations. Interestingly, the old CCSI program was extremely flexible. I remember several occasions where it turned out I was the expert in residence (e.g., on OSI addressing) on a particular topic, and an ad-hoc workshop was set up, both to evaluate my presentation but also pick my brain. The CCIE program was introduced in mid-1993, so it's newer than CCSI. Sometime in 1995, the CCSI format changed to something more scalable, involving passing a written and coming to Cisco for two days of charm school and observed teaching. In the pre-1995 CCSI, there was rarely more than one or two people being evaluated, so you could have multiple proctors evaluating at the same time. What about a guy who has fifteen years in the industry, gets his CCIE but has worked on the same technology, same network etc for years, he is not working with new technology so has no real experience with it either. Returning to your original point, I have much less concern with years of experience than the ability to perform in the real world and explain what you did. I recognize this may be more difficult when the emphasis is configuration and troubleshooting, but it's still do-able: give writeups of how you solved particular and challenging problems. The ability to describe and document a troubleshooting approach is extremely valuable -- it speaks directly to things that you would do as a senior staffer and presumably mentor. I have some questions that I use in interviewing people where I tell them I really don't expect them to have the exact answer (although I'd be pleased if they did), but I'm looking for them to be able to make me understand how they approach the problem. One of the first five CCIEs uses a related strategy. He'll interview by giving you symptoms and asking what your next steps would be, with his giving you results. A favorite question is based on a two-router, two-serial line production environment where the routers were moved during the night, and the people doing the move accidentally switched the serial cables to the wrong routers. In the example, all the routers were running IGRP, so it wasn't that you didn't get some meaningful protocol activity -- but lots of very weird things as well. A labrat as you call it has taken the time to explore the new stuff and will at least have an idea how to work with it in a production environment. There are two side to this arguement but I think there are a few who seem to be angry that a motivated individual is able to study and pull off something that they believe is reserved for only experienced engineers. It would not be in Cisco's best interest to load the CCIE with unnecessary baggage. The fact is that if you can pass the test you are probably an above average guy technically and have the potential to learn and master just about anything that could reasonably be expected of a network engineer. Regards, Douglas Mizell CCNP/CCDP Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71463t=71143 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: For Priscilla [7:71462]
Or if you don't want to order online just go to any bookstore and order ISBN: 0471210137 - Original Message - From: Reza To: Sent: Thursday, June 26, 2003 2:34 PM Subject: Re: For Priscilla [7:71462] Go to www.bookpool.com and order it. It cost $50.50 Reza Mauricio H Fernandez wrote in message news:[EMAIL PROTECTED] I have been trying to get Troubleshooting Campus Networks for the longest time. I've met Joeseph B. He is one of the smartest guys I've ever encountered. Can you tell me PLEASE why your book is so hard to get? Mauricio H Fernandez Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71478t=71462 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Router 827 ADSL + PIX 506 configuration [7:71059]
Use ip unnumbered on the WAN interface to the Ethernet. Assign the Ether a legal and the PIX a legal and use the rest to your liking... That's how I setup my home connection; works great! -Original Message- From: Bikespace [mailto:[EMAIL PROTECTED] Sent: Monday, June 23, 2003 2:52 PM To: [EMAIL PROTECTED] Subject: Re: Router 827 ADSL + PIX 506 configuration [7:71059] Okey Dokey - understood. If you're just playing around that's fine. You may have a few options. You could use your /29 for the subnet between router and Pix, but then you lose two of your 6 available addresses for the router and the Pix. Although you can grab some of these back, for instance by using port redirection on the outside interface of the Pix, so that port 80 goes to one of your web servers and 53 to one of your DNS servers etc. The other 4 addresses can be set up as static NAT through the Pix. Use Global (outside) 1 interface for outgoing connections to save using one of your addresses for general PAT. You could use a private address between the router and the Pix and just route your /29 at the Pix, then do NAT from there. You don't lose any of the 8 addresses then. You could still do port redirection, so one IP address doesn't have to be one server. Do as before and chip off port 80 for your web, and 53 for DNS etc. Good Luck Bikespace Lamy Alexandre wrote in message news:[EMAIL PROTECTED] Because I would like pratice. I would like simulate an enterprise. Just for understand how is make in enterprise. I don't have 100 static IP, but, anyway, I don't have 100 server. Example, Internet--Enterprise infrastructure or Multi-site Enterprise--Multi-site Enterprise... Anyway, if have 2 DNS server, and 2 Web server, and 2 authentication server, how make NAT/PAT? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71475t=71059 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how about ccie salary in US? [7:71143]
But then the next problem is how many years of experience is considered valid? Honestly, I do not think the number of years of experience means that much a fair number of the time. Why? Well, it depends on the quality of the experience, in my book. Advanced troubleshooting, initial deployments, fixing broken deployments, putting out serious fires and network meltdowns, isn't that worth a bit more than... ho hum, I see the green light on the NMS. Let us talk more about bringing up a new T1 link and calling in Cisco TAC to help. Oh... got to recover a password again, let us If someone is spending quite some time in a NOC or management/watchdog mode, how much real experience are they really acquiring? I would say they are growing at a ridiculously slow rate. Are they to blame? Hmmm not necessarily. Sure they could educate themselves, but remember, self-education is not worth anything to HR... :) So, how do you test for the experience? Manager vouching is sooo susceptible to nepotism or good old fashioned old boys network. How many legitimate people will we invalidate in the process? Look, first of all, I'm obviously not endorsing that anybody with x years of experience are automatically handed a ccie number. They would still have to pass the test just like anybody else. I trimmed down some of my extra fluff in the quote, sorry, just read the older archives with the same thread name. Oh I never suggested that either, I just said this initial filtering process is not clear cut, and we might be filtering innocent, bright individuals. Therefore the idea is simple. You use a minimum number of years of experience to eliminate the labrats. So instead, you get router-caressers (hmmm, sounds like some people enjoy networking a little too much). You then eliminate those guys with the test itself - if that highly experienced person didn't actually learn how to do all those things you mentioned, then it's unlikely that he would pass the test. Right. I am saying, it is NOT the number of years that matter, is it the quality of the number of years. One year of hardened fire fighting, troubleshooting, advanced deployment, cut over experience is sure worth a lot more than...three years of maintaining the network aka Router Carresser. But who gets to judge the ratio? So, do we 'weight' the one year of hardened experienced more? Or less? I am not talking about the exam yet, just, what about the legitimate people you are filtering out? What if they make it three years of experience because that is how long it takes for the average IT guy to figure out that Netbios can run over TCP/IP? What about the guy who figured it out in 5 minutes? Surely we do not want to disqualify him just because he figured it out in 5 minutes? Of course not, so how do those guys still benefit? Now obviously, this is imperfect. You will still have some guys who carress routers (man, that just sounds disgusting) and then bootcamp their way to getting their ccie. I agree. But there is no perfect solution. It's better than what we have today, where labrats bootcamp their way to their ccie. Bottom line - a caresser CCIE is on average more skilled than a labrat CCIE. Perhaps that is true. (I am not going to argue either way, but I think it's debatable. :) ) However, this is akin to the scorched earth tactic. I suppose until we find out how many people passed the CCIE, are considered WORTHWHILE, and find out how many years of experience they had, we will not know how many innocent victims we will fry with this tactic. If you are okay with frying X number of innocent, bright people (I would be very interested in the statistics myself), then sure, we should do it, just like the CISSP. (which I strongly disagree with myself) My argument is, should we really be frying those innocent people when I see far more 'hardened' experience people worth far more than the router carressers? Odds are those hardened experience people also have faster learning capabilities to keep up. Those are very good people we are potentially filtering out. And you ask about the integrity of the background check procedure. Well, I am proposing using the same procedure that some employers today use for their job candidates, where they hire companies to fact-check your resume. I believe how it works is that those companies then go to who you claim to be your former employers and obtain a signed legal document from their HR departments using official company letterhead attesting to the fact that you worked there from such-and-such dates and held such-and-such a position. It's not just a matter of calling up some old managers who may secretly be your golfing buddy and assessing your skill, it's about using a formal procedure that is subject to legal action if marred. Cisco obviously wouldn't be doing this, but there
Re: Issue with 6509 [7:71468]
Mario, Found this through the Cisco Output Interpreter: %SYS-3-SYS_LCPERR3 (x0):Module [dec]: Coil Pb Tx Underflow Error - Port #dec] Explanation: This message indicates an underflow in the port ASIC transmit buffer. The first [dec] is the module number. The second [dec] is the ASIC port number. Recommended Action: If the error is limited to a single module, replace the module. If the error occurs several times, contact your technical support representative. Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #3: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #4: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #5: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #6: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #7: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #8: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #9: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #10: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #11: 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #12: Does anyone know what this means? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71476t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
At 04:44 PM 6/26/2003 +, Priscilla Oppenheimer wrote: In fact I seem to remember that you *had* to specify it on a subinterface level for a while, and it was in fact the encapsulation type that selected the subinterface. The reason for this behavior is that Ethernet has two sub-layers within Layer 2, so even there you have an implied encapsulation assigned to the physical interface (the lower of the two sub-layers, the IEEE 802.3/Ethernet II format), and only the higher layer (layer 802.2) encapsulation is assigned to a subinterface. You can't tell an Ethernet interface to use 802.2 except within the IPX network commands. Maybe you're thinking of the 802.1Q VLAN tagging standard. No, I am thinking about the IPX case. Using multiple different encapsulations on a single physical interface used to be a typical question in the CCIE lab, that's why I remember it. I've never had to use it ever since, so I might have said something incorrectly, but I don't see what that was. I quickly looked at this page: http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/mods/4mod/4cbook/4cipx.htm and I think it confirmed what I said (search for subinterface within the page), but I wouldn't mind to be corrected. Ethernet encapsulation behavior isn't much like encapsulation on serial interfaces, which can only be one of the major categories: HDLC, PPP, Frame Relay. But Frame Relay has 2 varieties. I think I am missing the point here. Obviously they aren't the same, otherwise it would be foolish to give them such different names :), but I do think that the Ethernet encapsulations play a very similar role to the serial encapsulations (only in a different situation). If you mean that the original question was very Frame Relay and Cisco IOS implementation specific, and compared to that my answer was too generic and theoretical, then you are probably right. :) Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71477t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
router caressers (was RE: how about ccie salary in US? [7:71479]
At 3:52 PM + 6/26/03, n rf wrote: Look, first of all, I'm obviously not endorsing that anybody with x years of experience are automatically handed a ccie number. They would still have to pass the test just like anybody else. Therefore the idea is simple. You use a minimum number of years of experience to eliminate the labrats. So instead, you get router-caressers (hmmm, sounds like some people enjoy networking a little too much). I cite that noted networking authority, Leslie Nielsen, in his autobiography. He describes a screen test in which he was directed to cross the room and turn on a radio. Walking to the instrument, he reached out and stroked it softly, crooning you're a pretty cute radio. You then eliminate those guys with the test itself - if that highly experienced person didn't actually learn how to do all those things you mentioned, then it's unlikely that he would pass the test. Now obviously, this is imperfect. You will still have some guys who carress routers (man, that just sounds disgusting) In that case, nrf, I suggest you do not meditate deeply on the functionality of the Physical Layer, whose scope includes male, female, and gender-bender connectors. And you ask about the integrity of the background check procedure. Well, I am proposing using the same procedure that some employers today use for their job candidates, where they hire companies to fact-check your resume. I don't remember the specifics, but I believe Nortel did something like this for your case study writeups for the Architect certification. Might have been a letter, might have been spot checking. One of the issues that I keep coming back to is that highly verified certifications, be it a professional engineer, medical certification, etc., which may use oral exams, peer-reviewed documents, etc., tend not to be highly scalable or lend themselves to scaling the way it would seem Cisco would like. Of course, this is rough for the people that worked on sensitive or classified networks (I can tell you what the candidate built, but then I'll have to kill you). Mind you, I have a friend that was updating the cabling in the Pentagon, who still claims she put a test set on a random wire and got the following telegraph message: Many Indians. Send help. Custer :-) Actually, not so :-), when we have the reality that a command post heard 30-odd successive SOS messages, interspersed with we are being boarded, from the USS Pueblo, and dismissed it as operator chatter. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71479t=71479 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
policy based routing and backup [7:71482]
Hi all. I have a question that I would like your opinion on. I have 2 routers each with a T1 to the upstream provider. Both routers are running eBGP to each provider only accepting partial routes and a default from each. In additon, each router is peering with each other via iBGP through a directly connected ethernet link which is also running ospf. ISPA ISPB | | | | RtrA---ibgp---RtrB Router A advertisements: a.a.a.a b.b.b.b w/prepend Router B advertisements: b.b.b.b a.a.a.a w/prepend Everything is working as I would expect it. I have access into the network if either one of the T1 goes down. If I ping or traceroute sourcing it from any interface from within RtrA to an IP address on the net, the packets goes out based on longest match and preferred route based on local-pref. This results in almost always going through RtrB. This used to be acceptable. I would like to set up a policy on RtrA to match on source address of a.a.a.a to always (as long as RtrA T1 is up) go out RtrA T1 instead of RtrB. So how do I set it up such that IF RtrA T1 goes down the traffic from a.a.a.a (source) goes out RtrB T1? Does anyone have an example on how to do this? Thanks, Mario Puras SoluNet Technical Support Mailto: [EMAIL PROTECTED] Direct: (321) 309-1410 888.449.5766 (USA) / 888.SOLUNET (Canada) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71482t=71482 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: Early Friday Funnies [7:71487]
On a tour of America, the Pope took a couple of days off to visit the west coast. His 4x4 Pope-Mobile was driving along the golden sands when there was an enormous commotion. He rushed to see what it was, and upon approaching the scene he noticed just outside the surf, a hapless man wearing a Microsoft T-shirt, struggling frantically to free himself from the jaws of a 20 foot shark! At that moment a speedboat containing three men wearing LINUX tops roared into view. Spontaneously, one of the men took aim at the shark and fired a harpoon into its ribs, immobilising it instantly. The other two reached out and pulled the man from the water and then, using long clubs, beat the shark to death. They bundled the bleeding, semi-conscious man into the speedboat along with the dead shark and prepared for a hasty retreat, when they heard frantic calling from the shore. It was the Pope, summoning them to the beach. Upon reaching land, the Pope went into raptures about the rescue and said, I give you my blessing for your brave actions. I'd heard there were a divided people trying to preach your own OS but now I have seen with my own eyes this is not true. I can see your society is a truly enlightened example of tribal harmony which could serve as a model for other nations. He blessed them all and drove off. As he departed, the harpoonist asked the others, Who was that?! That, one answered, was his Holiness the Pope. He is in direct contact with God and has access to all God's wisdom. Well, the harpoonist replied, he knows all about shark fishing. How's the bait holding up or do we need to get another one? Best regards, (please don't flame - it is only a joke) Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71487t=71487 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Rate-limiting [7:71471]
As the great (soon to be Sainted) Howard C. Berkowitz would say, What problem are you trying to solve? Are you trying to limit the overall traffic on the DS3 to 10 Mb (2+8)? Of course you will get drops when the limits are reached. RED, WRED, and even the various queueing techniques will drop packets if there is not sufficient bandwidth. When you say need to limit their traffic to 8Mb to internal traffic is this on both ingress and egress? Have a search on CCO for class based policing, it may be what you are after. If you have any further questions, please get in touch. HTH Best regards, Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org == Greetings, I need some pointers with rate-limiting and hopeing you guys can help me out. We have a DS3 ckt in one of our sites and need to limit their traffic to 8Mb to internal traffic and 2Mb if traffic destined to the web. My concern is packet drops when the threshold reachs either the 8 or 2 meg limit. Thanks, Gibran - Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71485t=71471 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP routes [7:71442]
KW S wrote in message ... What is the benefits of receiving the following BGP routes 1. Full routes 2. Partial routes 3. No routes Well #3 means it doesn't work (you need at least a default route, or 0.0.0.0/0), so I'll skip that one... Full routes from two or more providers, with no default route: Benefits - Ability to move any prefix/AS for outbound traffic to any of the providers. Abilty to optimize/maximize loose-mode uRPF features. Ability to optimize/maximize prefix-filters/distribute-lists if you are a transit-AS. Ability to route 0.0.0.0/0 to Null0, aka The Default Free-Zone, or DFZ Drawbacks - More routes = more CPU and memory requirements on your routers. However, scaling with today's equipment and a few good configurations makes this a very small issue compared to the power you gain Application - Tier 1 Internet Provider that doesn't receive partial routes from anyone and gets a full routing table from all peers Some Full routes, some Partial routes, no defaults: Benefits - Ability to move any prefix/AS on providers receiving full routes and some ability to move onto providers sending partial routes. Ability to route 0.0.0.0/0 to Null0, which is sort of like default-free Drawbacks - Can't use loose-mode uRPF on all providers (but could build a complicated strict-mode uRPF for the partial route providers). Prefix-lists and distribute-lists also become more complicated if you are a transit-AS Application - Tier 2 Internet Providers, Content Providers, any company with IP clue Partial routes from two or more providers, with partial+default route from one provider: Benefits - Ability to move around some prefixes/ASes for outbound traffic to the providers that will take that prefix/AS. Ability to send the rest of your traffic out the default route to the one provider Drawbacks - Restriction to send the rest of your traffic out the default route of only one provider Application - Companies with IP clue that don't have the money to keep all routers configured properly or with enough memory to hold full tables with multiple views Partial routes from two or more providers, with more than one provider sending partial+default routes: Benefits - Ability to move around some prefixes/ASes for outbound traffic to the providers that will take that prefix/AS. Ability to send the rest of your traffic out any of the default routes from the providers you are getting defaults from Drawbacks - More than one default route can be confusing to deal with Application - Companies that don't understand how partial+default works Partial routes from one or more providers, with another single provider providing only a default route: Benefits - As Partial, with partial+default from one provider, only that provider doesn't send partial routes. Drawbacks - Restriction to default route for rest of traffic Application - Companies with IP clue, but very little money and resources (read: only have Cisco 2500 routers or equivalent) Default routes from two or more providers with no full/partial routes: Benefits - you are multihomed (not reliant on one Internet provider), but only in the smallest sense of the term Drawbacks - no ability to influence traffic Applcation - Companies who are willing to spend the extra cost associated with two providers, but aren't willing to upgrade their Cisco 2500 router that has 2MB DRAM -dre Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71484t=71442 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: router caressers (was RE: how about ccie salary in [7:71479]
Howard C. Berkowitz wrote: At 3:52 PM + 6/26/03, n rf wrote: Look, first of all, I'm obviously not endorsing that anybody with x years of experience are automatically handed a ccie number. They would still have to pass the test just like anybody else. Therefore the idea is simple. You use a minimum number of years of experience to eliminate the labrats. So instead, you get router-caressers (hmmm, sounds like some people enjoy networking a little too much). Is this what you had in mind? :-) http://unixsex.com/netadmin/noclust/routergirl.jpg Priscilla I cite that noted networking authority, Leslie Nielsen, in his autobiography. He describes a screen test in which he was directed to cross the room and turn on a radio. Walking to the instrument, he reached out and stroked it softly, crooning you're a pretty cute radio. You then eliminate those guys with the test itself - if that highly experienced person didn't actually learn how to do all those things you mentioned, then it's unlikely that he would pass the test. Now obviously, this is imperfect. You will still have some guys who carress routers (man, that just sounds disgusting) In that case, nrf, I suggest you do not meditate deeply on the functionality of the Physical Layer, whose scope includes male, female, and gender-bender connectors. And you ask about the integrity of the background check procedure. Well, I am proposing using the same procedure that some employers today use for their job candidates, where they hire companies to fact-check your resume. I don't remember the specifics, but I believe Nortel did something like this for your case study writeups for the Architect certification. Might have been a letter, might have been spot checking. One of the issues that I keep coming back to is that highly verified certifications, be it a professional engineer, medical certification, etc., which may use oral exams, peer-reviewed documents, etc., tend not to be highly scalable or lend themselves to scaling the way it would seem Cisco would like. Of course, this is rough for the people that worked on sensitive or classified networks (I can tell you what the candidate built, but then I'll have to kill you). Mind you, I have a friend that was updating the cabling in the Pentagon, who still claims she put a test set on a random wire and got the following telegraph message: Many Indians. Send help. Custer :-) Actually, not so :-), when we have the reality that a command post heard 30-odd successive SOS messages, interspersed with we are being boarded, from the USS Pueblo, and dismissed it as operator chatter. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71483t=71479 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Issue with 6509 [7:71468]
wrote in message... Having a problem with 12 ports on one of our 6509's.. They are unable to pass traffic, and I get the following errors on the console. 2003 Jun 26 10:55:57 %SYS-3-SYS_LCPERR3:Module 6: Coil Pb Tx Underflow Error - Port #2: I'm surpised at all the poor responses to this posting. This is the Pinnacle COIL ASIC bug... very well-known on the Cat6k platform. It affects 12 ports at a time ... (on yours it is ports 1-12), because the Pinnacle ASIC services 12 ports grouped together. It only affects the WS-X6248-RJ-45 and WS-X6348-RJ-45 modules. The bug is not a hardware-only bug, there are actually two versions of the bug, one is hardware and the other is software. If you are running code CatOS 6.x, then it is more likely the software bug. In both cases, you should be able to power off and power on the module to make the error go away (no need to RMA). I have found this to be true about 36 out of the 40 times I've done this. Only in a few cases was it hardware-related. Reseating the module is the second mostly likely thing to fix the module. However, a soft reset does not seem to make the condition disappear. Open a Cisco case and then try the following: set module power down 6 set module power up 6 Also, you shouldn't rely on mailing-lists for this type of information, the Cisco TAC is the best place for Cisco bug resolution... -dre Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71486t=71468 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Zsombor Papp wrote: At 04:44 PM 6/26/2003 +, Priscilla Oppenheimer wrote: In fact I seem to remember that you *had* to specify it on a subinterface level for a while, and it was in fact the encapsulation type that selected the subinterface. The reason for this behavior is that Ethernet has two sub-layers within Layer 2, so even there you have an implied encapsulation assigned to the physical interface (the lower of the two sub-layers, the IEEE 802.3/Ethernet II format), and only the higher layer (layer 802.2) encapsulation is assigned to a subinterface. You can't tell an Ethernet interface to use 802.2 except within the IPX network commands. Maybe you're thinking of the 802.1Q VLAN tagging standard. No, I am thinking about the IPX case. Using multiple different encapsulations on a single physical interface used to be a typical question in the CCIE lab, that's why I remember it. I've never had to use it ever since, so I might have said something incorrectly, but I don't see what that was. Oh. Your message didn't say anything about IPX. Also, this was a weird analogy that doesn't quite work: only the higher layer (layer 802.2) encapsulation is assigned to a subinterface. Ethernet II doesn't have 802.2. Neither does novell-ether. IPX can use either of those, as well as 802.3 with 802.2 and 802.3 with 802.2 and SNAP. I quickly looked at this page: http://www.cisco.com/univercd/cc/td/doc/product/software/ios111/mods/4mod/4cbook/4cipx.htm and I think it confirmed what I said (search for subinterface within the page), but I wouldn't mind to be corrected. Ethernet encapsulation behavior isn't much like encapsulation on serial interfaces, which can only be one of the major categories: HDLC, PPP, Frame Relay. But Frame Relay has 2 varieties. I think I am missing the point here. Obviously they aren't the same, otherwise it would be foolish to give them such different names :), but I do think that the Ethernet encapsulations play a very similar role to the serial encapsulations (only in a different situation). Ethernet encapsulation depends on the payload. IP uses Ethernet II, CDP uses SNAP, etc. With the exception of IPX, it's not configurable. (Actually ARP is configurable too for historical reasons. Long story that I can't get into now). That's not like encapsulation on a serial interface that doesn't care about the upper layer. Think about the IOS software. It has to know what it is encapsulating on Ethernet. It doesn't on a serial interface. That was what I meant by the behavior being different. Priscilla If you mean that the original question was very Frame Relay and Cisco IOS implementation specific, and compared to that my answer was too generic and theoretical, then you are probably right. :) Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71488t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT: Early Friday Funnies [7:71487]
Good one . Azhar Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71489t=71487 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
3com to Cisco Interoperability [7:71490]
I am working in a shop where we are migrating from 3Com to Cisco switches and routers. I am having difficulty connecting Cisco and 3Com switches at a Gig. I am not sure what to look into when connecting these two links together. Sometimes I get a link light and no communications and sometimes I get nothing. Are there any encapsulation issues, timing issues that anyone can lead me in the right direction on? I need to get these to work together during the migration. We are not doing any vlan trunking or anything fancy between the two, just switching. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71490t=71490 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Needs some help [7:71491]
Hi everyone: My name is Azhar Soomro. I just finished my masters in ECE from Wichita State University. I completed my CCNP,CCNA and MCSE certification. I have been looking for a job for the last few months without any success. I want you people to guide me and advise me what you will do in the same situation. Any help will be greatly appreciated. Thanks for taking your time to read the email. Azhar Soomro [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71491t=71491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Early Friday Funnies [7:71487]
LMAO!! Again Dom, very funny. - Original Message - From: Dom To: Sent: Thursday, June 26, 2003 5:09 PM Subject: OT: Early Friday Funnies [7:71487] On a tour of America, the Pope took a couple of days off to visit the west coast. His 4x4 Pope-Mobile was driving along the golden sands when there was an enormous commotion. He rushed to see what it was, and upon approaching the scene he noticed just outside the surf, a hapless man wearing a Microsoft T-shirt, struggling frantically to free himself from the jaws of a 20 foot shark! At that moment a speedboat containing three men wearing LINUX tops roared into view. Spontaneously, one of the men took aim at the shark and fired a harpoon into its ribs, immobilising it instantly. The other two reached out and pulled the man from the water and then, using long clubs, beat the shark to death. They bundled the bleeding, semi-conscious man into the speedboat along with the dead shark and prepared for a hasty retreat, when they heard frantic calling from the shore. It was the Pope, summoning them to the beach. Upon reaching land, the Pope went into raptures about the rescue and said, I give you my blessing for your brave actions. I'd heard there were a divided people trying to preach your own OS but now I have seen with my own eyes this is not true. I can see your society is a truly enlightened example of tribal harmony which could serve as a model for other nations. He blessed them all and drove off. As he departed, the harpoonist asked the others, Who was that?! That, one answered, was his Holiness the Pope. He is in direct contact with God and has access to all God's wisdom. Well, the harpoonist replied, he knows all about shark fishing. How's the bait holding up or do we need to get another one? Best regards, (please don't flame - it is only a joke) Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71492t=71487 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
At 10:21 PM 6/26/2003 +, Priscilla Oppenheimer wrote: Oh. Your message didn't say anything about IPX. Right. I was talking about layer 2 encapsulations. I thought that the fact that *Cisco IOS* supports this configuration only for IPX is irrelevant. Maybe I was wrong, see below. Ethernet encapsulation depends on the payload. I am a bit surprised by this statement. Are you saying that the Ethernet specifications mandate the usage of, say, Ethernet II encapsulation if you want to transport IP packets? Frankly, I have never read the Ethernet specifications, but I thought that *in theory*, you can pretty much transport any payload in any Ethernet encapsulation, it's just *usually* not done. Am I mistaken? If so, can you point me to some documents that would enlighten me? (Seriously.) The fact that something is not configurable doesn't prove anything outside of the scope of the IOS implementation. As a side question, do you think that TCP must run over IP? :) Thanks, Zsombor IP uses Ethernet II, CDP uses SNAP, etc. With the exception of IPX, it's not configurable. (Actually ARP is configurable too for historical reasons. Long story that I can't get into now). That's not like encapsulation on a serial interface that doesn't care about the upper layer. Think about the IOS software. It has to know what it is encapsulating on Ethernet. It doesn't on a serial interface. That was what I meant by the behavior being different. Priscilla If you mean that the original question was very Frame Relay and Cisco IOS implementation specific, and compared to that my answer was too generic and theoretical, then you are probably right. :) Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71493t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 3com to Cisco Interoperability [7:71490]
IS it on auto detect speed / duplex? try manual. -- Regards, Steve Kalcevich Ron wrote in message news:[EMAIL PROTECTED] I am working in a shop where we are migrating from 3Com to Cisco switches and routers. I am having difficulty connecting Cisco and 3Com switches at a Gig. I am not sure what to look into when connecting these two links together. Sometimes I get a link light and no communications and sometimes I get nothing. Are there any encapsulation issues, timing issues that anyone can lead me in the right direction on? I need to get these to work together during the migration. We are not doing any vlan trunking or anything fancy between the two, just switching. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71495t=71490 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 3com to Cisco Interoperability [7:71490]
got your transmit and receive crossed? ( or rather, straight? ) Ron wrote in message news:[EMAIL PROTECTED] I am working in a shop where we are migrating from 3Com to Cisco switches and routers. I am having difficulty connecting Cisco and 3Com switches at a Gig. I am not sure what to look into when connecting these two links together. Sometimes I get a link light and no communications and sometimes I get nothing. Are there any encapsulation issues, timing issues that anyone can lead me in the right direction on? I need to get these to work together during the migration. We are not doing any vlan trunking or anything fancy between the two, just switching. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71494t=71490 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Technology, Certification, Skill Sets, and Loo [7:70953]
No, I don't expect anything but a paycheck at the end of a pay period. Are you worried your employees may read this? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of n rf Sent: Wednesday, June 25, 2003 7:48 AM To: [EMAIL PROTECTED] Subject: RE: Technology, Certification, Skill Sets, and Loo [7:70953] Mark E. Hayes wrote: Ok Sen. McCarthy, Your response is Bolshevik, get it? ;) All I'm talking about is taking care of people who took care of you. As an employee I have an obligation to do x amount of work. I always do more than that, it's a pride thing. I want the business I work for to prosper. What is wrong with showing an employee like that some loyalty. Hey, if the employer wants to do that, there is nothing wrong at all. What's 'wrong' is that you apparently expect them to do so. The employer is obligated to compensate you for your time according to whatever employment agreement you arranged when you were hired, nothing more, nothing less. If you want to altruistically give time and effort above and beyond what is necessary, that's your prerogative, but the employer is not obligated to reward you for it, and if you're truly being altruistic, then you shouldn't have anything to complain about, because altruism means to do something without any expectation of recompense. Now, if you're not being altruistic and you are willing to do extraordinary work but because you expect a reward for it, then you should play Let's Make a Deal. Tell your employer that you're willing to do this-and-that task but only for such-and-such an increase in compensation or a similar arrangement.But if you don't do that, you can't complain ex-post-facto. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71497t=70953 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Subinterfaces [7:71421]
Zsombor Papp wrote: At 10:21 PM 6/26/2003 +, Priscilla Oppenheimer wrote: Oh. Your message didn't say anything about IPX. Right. I was talking about layer 2 encapsulations. I thought that the fact that *Cisco IOS* supports this configuration only for IPX is irrelevant. I don't think it's irrelevant that Cisco IOS (and most operating systems) only support configuring the Ethernet encapsulation for IPX. Newbies think you can configure the Ethernet encapsulation in a generic way and for multiple protocols. You can't, and you wouldn't want to anyway if you want to interoperate with any other device. You can configure the type of VLAN tagging that should be used and then there's the IPX anomoly that we have been living with since 1981. With Cisco IOS, the fact that you can enter a generic encapsulation command on serial interfaces that affects all packets and that you can't do this on Ethernet is an important distinction that has caused confusion for numerous people on this list over the years. I thought it was worth further discussion, though not this much discussion! :-) Maybe I was wrong, see below. Ethernet encapsulation depends on the payload. I am a bit surprised by this statement. Are you saying that the Ethernet specifications mandate the usage of, say, Ethernet II encapsulation if you want to transport IP packets? No. Ethernet specs don't say what the payload will be. Frankly, I have never read the Ethernet specifications, Well, I have for what it's worth, which is not a whole lot. :-) I've read every Ethernet spec since Bob Metcalf's original memo from 1973. but I thought that *in theory*, you can pretty much transport any payload in any Ethernet encapsulation, it's just *usually* not done. Am I mistaken? No. You're not mistaken. I think it's interesting and relevant that IP always uses Ethernet II on essentially every modern operating system, even though Ethernet II is old. I think it's interesting that other protocol developers have made other choices for the encapsulation. I also know that it's an area of confusion for 1000s of students of networking, especially Cisco certification candidates, even though Cisco doesn't make you learn protocols. But I'll help people learn protocols and you can't stop me! :-) Priscilla If so, can you point me to some documents that would enlighten me? (Seriously.) The fact that something is not configurable doesn't prove anything outside of the scope of the IOS implementation. As a side question, do you think that TCP must run over IP? :) Thanks, Zsombor IP uses Ethernet II, CDP uses SNAP, etc. With the exception of IPX, it's not configurable. (Actually ARP is configurable too for historical reasons. Long story that I can't get into now). That's not like encapsulation on a serial interface that doesn't care about the upper layer. Think about the IOS software. It has to know what it is encapsulating on Ethernet. It doesn't on a serial interface. That was what I meant by the behavior being different. Priscilla If you mean that the original question was very Frame Relay and Cisco IOS implementation specific, and compared to that my answer was too generic and theoretical, then you are probably right. :) Thanks, Zsombor Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71498t=71421 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Upgrading Aironet Firmware [7:71496]
Dear All, Has anyone try upgrading Wireless Bridge Aironet 350 Firmware? Would the firmware be different between FCC and ETSI? I tried to download the firmware from CCO, however the link seems to be down, and Cisco doesnt seem to differentiate the firmware for FCC and ETSI. any idea would be appreciated... RD Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71496t=71496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco frame-relay question [7:71500]
Hi all, What is the cisco frame-relay local-dlci command used for ? Thanks in advance, Paresh. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71500t=71500 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Needs some help [7:71491]
What level of job have you been applying for? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=71499t=71491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
