Re: CCNP and CCNA recertification [7:72138]
Grant, Correct, you will need to do the CCNA exam againthis should not be difficult considering the rate at which you have been doing your CCNP :-) Good Luck...you are not a CCNP despite finishing the 4 courses. Very strange rule indeed. It must be meant to suit Cisco's Certification Information System logic. Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72145&t=72138 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Accesss List(deny ping) [7:72147]
hi all, I got one scenario, where we got 2 routers, one is A and another is HQ, connection between A & HQ are via Frame Relay and ISDN as a backup. ISDN is using loopback address 202.x.y.z. Question: when both Frame Relay and ISDN are up, how do I create access list in router A to deny ping to 202.x.y.z via Frame Relay(Serial port) but only allow it via ISDN Bri port in router A. tq rgds nazri Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72147&t=72147 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Need simple network management tool [7:72132]
Give this a try. http://www.pingplotter.com/ -Original Message- From: Sales [mailto:[EMAIL PROTECTED] Sent: Donnerstag, 10. Juli 2003 22:56 To: [EMAIL PROTECTED] Subject: RE: Need simple network management tool [7:72132] Many tools out there that are free. One that will even graph the results is MRTG. Ian www.ccie4u.com Rack Rentals and Lab Scenarios starting at $20 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mossburg, Geoff (MAN-Corporate) Sent: Thursday, July 10, 2003 7:32 PM To: [EMAIL PROTECTED] Subject: Need simple network management tool [7:72132] Does anyone know of a freeware or shareware tool that will take a list of IP addresses (like all of my router's loopback addresses) and will ping each address once every x seconds/minutes? This sounds simple enough to make with just scripting, but I unfortunately don't know scripting... Please help! Thanks! Geoff Mossburg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72149&t=72132 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: electrical issues with switches [7:72151]
This is completely off topic and, in my case, of an operational nature, so I need to apologize in advance. Unless there is some expressed interest please respond to me privately if you would, thanks. We have suffered over the last couple of years what I would consider an unusually high number of blade failures in various switches (from several vendors including Extreme and Cisco). They have the earmarks of an electrical problem, that is, supplied current spiking and valleying. For instance, where I am located - Northern Virginia - we had some major storms move through last night. This morning I had two blade failures in two separate closets. These closets all have UPS units (usually more than one) and the switches, all of which have dual power supplies, and are split with one power supply going to one UPS, the other to another UPS. Granted both are in the same room and usually plugged into the same circuit. Seemingly this would eliminate, or at least mitigate, the bulk of any electrical fluctuations in the closets. The UPS's have been tested with various diagnostic tools and they appear to check out fine. My question is this. The failures seem to occur more often on densely populated blades (isn't that always the case?). Many people in the building leave their PC's on at night. When the power goes out in this building, the PCs in most areas will also power down. When power is restored, even if it just flickers, all these machines will boot at the same time. Is there any chance that this surge - if there is one - of current coming from the rebooted PC NIC cards could cause these issues? Or is there even a current that flows back from the NIC's (it would seem logical, but I am not an EE). I do realize that I may be grasping at straws. Any thoughts, and again I apologize for the off topic content. There are many bright folks in this group so I thought I would ask. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72151&t=72151 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: an ISIS question.... [7:72081]
At 12:29 AM 7/11/2003 +, wj chou wrote: >"In this case, you L1 areas will not usually be the same and the L1 >adjacency between the two "core" routers will not form. If the area is the >same, the L2 adjacency is superfluous. Many large networks are single >area, or single level (ie L1 everyone in one area, or L2 everywhere where >area isn't very relevant.)" > >Can you explain a bit more about this? "you L1 areas will not usually be the >same an the L1 adjacency between the two "core" routers will not form"? I am >new to ISIS... In the picture, you drew a network like the following: L1L1L2---L1L2-L1 This looks very much like a network where two areas area interconnected via a backbone. The backbone in this case is the set of L1L2 routers. In this network, it would be logical to assign different area id's to each L1 process such that they operate as distinct areas. Since ISIS routers exist fully in a single area, this will leave the two L1L2 routers in different areas. Those routers will form an L2 adjacency because the L2 process doesn't look for matching area IDs, but the L1 adjacency process will fail between them as L1 adjacencies require matching area IDs (at least one) Does this help? Pete >Thanks! > >Ellie Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72153&t=72081 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: electrical issues with switches [7:72151]
GREAT question, I'd sure like to here the answer. I concur on the more blades than normal having problems and have wondered about a manufacturing location change as well as this backdoor current question. Larry Puckette Senior Network Analyst Temple Inland/Austin Data Center 512/434-1838 [EMAIL PROTECTED] Where the only idol is money and power, there is no hope for integrity. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, July 11, 2003 9:47 AM To: [EMAIL PROTECTED] Subject:OT: electrical issues with switches [7:72151] This is completely off topic and, in my case, of an operational nature, so I need to apologize in advance. Unless there is some expressed interest please respond to me privately if you would, thanks. We have suffered over the last couple of years what I would consider an unusually high number of blade failures in various switches (from several vendors including Extreme and Cisco). They have the earmarks of an electrical problem, that is, supplied current spiking and valleying. For instance, where I am located - Northern Virginia - we had some major storms move through last night. This morning I had two blade failures in two separate closets. These closets all have UPS units (usually more than one) and the switches, all of which have dual power supplies, and are split with one power supply going to one UPS, the other to another UPS. Granted both are in the same room and usually plugged into the same circuit. Seemingly this would eliminate, or at least mitigate, the bulk of any electrical fluctuations in the closets. The UPS's have been tested with various diagnostic tools and they appear to check out fine. My question is this. The failures seem to occur more often on densely populated blades (isn't that always the case?). Many people in the building leave their PC's on at night. When the power goes out in this building, the PCs in most areas will also power down. When power is restored, even if it just flickers, all these machines will boot at the same time. Is there any chance that this surge - if there is one - of current coming from the rebooted PC NIC cards could cause these issues? Or is there even a current that flows back from the NIC's (it would seem logical, but I am not an EE). I do realize that I may be grasping at straws. Any thoughts, and again I apologize for the off topic content. There are many bright folks in this group so I thought I would ask. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72154&t=72151 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Need simple network management tool [7:72132]
Since I'm sure that quite a few people could use something like this, I've created a fairly simple VBScript that will ping a list of hosts specified in a text file and send an email with hosts which are not responding. The script should work on any Windows 2000 or XP system. You'll need to be logged in as an administrator since the ping implementation uses raw sockets. You'll need to download and register the following components. http://www.ostrosoft.com/smtp_component.asp Download the zip and extract the SMTP.OCX file to your Windows System32 directory Run the following command: Regsvr32 %systemroot%System32SMTP.ocx http://www.netal.com/download.htm#SSR Download the zip and extract the SSCrRun.dll file to your Windows System32 directory. Run the following command: Regsvr32 %systemroot%System32SSCrRun.dll Create a text file called C:PingHosts.txt In PingHosts.txt, add the following lines exactly as they appear and fill in the appropriate information within the brackets []: SMTPServer: [SMTP_SERVER_IP_ADDRESS] SENDER Email: [SENDER_EMAIL_ADDRESS] RECIPIENTS: [EMAIL_ADDRESS_OF_RECIPIENT, SEPARATE WITH COMMAS IF > 1] Host: [IP_ADDRESS_OF_HOST] Host: [IP_ADDRESS_OF_HOST] Host: [IP_ADDRESS_OF_HOST] Etc... Download the script and sample text file via FTP from: 66.192.203.23 Directory: Netscripts User, Pass: netscript Run the script by launching a command prompt and running the command: Cscript C:PingHosts.vbs You should see the output from a ping to each host echoed onscreen. Any non-responsive host will be sent in an email to the list of email addresses specified for RECIPIENTS in C:PingHosts.txt You'll need an SMTP server which does not require authentication. Add as many hosts as you need and you can schedule the script to run using Task Scheduler or run it manually, whatever... Email me with any problems at [EMAIL PROTECTED] Vijay Ramcharan, MCSE, CCNP/DP -Original Message- From: Mossburg, Geoff (MAN-Corporate) [mailto:[EMAIL PROTECTED] Sent: Thursday, July 10, 2003 7:32 PM To: [EMAIL PROTECTED] Subject: Need simple network management tool [7:72132] Does anyone know of a freeware or shareware tool that will take a list of IP addresses (like all of my router's loopback addresses) and will ping each address once every x seconds/minutes? This sounds simple enough to make with just scripting, but I unfortunately don't know scripting... Please help! Thanks! Geoff Mossburg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72152&t=72132 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Caslows new CCIE Practice Lab book [7:72157]
Has anyone seen this lab book yet?? http://www.netmasterclass.net/site/doit1.php Thanks, Jason Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72157&t=72157 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Catalyst 4506 - Which Supervisor card? [7:72156]
Wanted to get some feedback from some folks that are using either the Sup II+ card or the Sup IV card.. There is over a $3,000.00 difference in cost.. Anybody using the SUP II+? Any issues? Thanks, John A. Johns, CCIE No. 7983, CCDP, CCNP, MCSE, MCSA, MCP+I, CCA, A+ System Engineer The Hillman Company 1900 Grant Building Pittsburgh, PA 15219 412-338-3585 Voice 412-370-2454 Cell 412-338-3425 Fax [EMAIL PROTECTED] The information contained in and transmitted with this e-mail is confidential. It is intended only for the individual or entity so designated above. You are hereby notified that any dissemination, distribution, copying, or the use of or reliance upon the information contained in and transmitted with this e-mail by or to anyone other than the recipient(s) designated above is unauthorized and strictly prohibited. If you have received this e-mail in error, please notify us immediately by telephone at (412) 338-3535. Thank you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72156&t=72156 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: We (Cisco mailing list) are moving ... [7:72060]
Paul, Can we help you out with this great service you are providing to us by making a small donation? I know I'm not alone when I say that your service has been invaluable to us in the Ciscos of the world. Thanks, Jim -Original Message- From: Paul Borghese [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 09, 2003 12:29 PM To: [EMAIL PROTECTED] Subject: We (Cisco mailing list) are moving ... [7:72060] Hey Everyone, We will be moving the mailing list function to a new server. If you are currently receiving this list via e-mail, you will be affected. This has been planned for some time now but we need to move faster then I would like. I just received a bill from our co-location facility for the GroupStudy service and let's just put it this way, in most locations rent on a two bedroom apartment is less expensive. So we need to try and reduce our bandwidth usage (an eventually find another co-location facility). It has been quite clear for some time now that the GroupStudy server needs help. We are dropping an unacceptable number of messages (I personally have had five in a row discarded) and the messages that make it take a random amount of time to propagate. To fix this, I have purchased a new server and bandwidth (at a lower cost facility). We will be migrating to the new server in the next few days. Once the move is complete we will cut over to the new server. But wait it gets better .. We are dumping majordomo as our list software! Our new software will allow you to change a number of options. For example you will be able to suspend distribution of the e-mails, receive e-mails in digest format, change your e-mail address, etc. You will receive a welcome message with your account information. The message will contain your username/password, instructions on how to login to the server, and instructions on how to unsubscribe. Please save this e-mail for future reference. It is also a good idea to login to the server and set your password to something more memorable then the random password given. If you stop receiving e-mails from the list after the change, please send me an e-mail (after verifying it is not a problem at your end such as misconfigured anti-spam software etc.). Take care, Paul Borghese Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72148&t=72060 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Need simple network management tool [7:72132]
Whatsup gold from IPswitch works great. All you have to use is Visio then import it to Whatsup gold. No scripting involved. - Original Message - From: "Mossburg, Geoff (MAN-Corporate)" To: Sent: Thursday, July 10, 2003 6:32 PM Subject: Need simple network management tool [7:72132] > Does anyone know of a freeware or shareware tool that will take a list of IP > addresses (like all of my router's loopback addresses) and will ping each > address once every x seconds/minutes? This sounds simple enough to make with > just scripting, but I unfortunately don't know scripting... Please help! > Thanks! > Geoff Mossburg Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72155&t=72132 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re[2]: CCNP ReCert Questions [7:72071]
John,
Your best bet is to take either the composite exam or the recert exam. Both
will get you recertified and both are only one exam rather than 4. If you
can wait until the composite exam comes online (August 7th) that one may be
best since it looks like it will recertify both CCNP and CCDP at the same
time. I'm planning on taking the composite myself.
If you do have to do all four test, I'd suggest taking the foundation and
the CIT bt you'll have to be quick since the foundation is being phased out
on September 7th. After that its the composite, BCRAN, and CIT.
Karen
*** REPLY SEPARATOR ***
On 7/10/2003 at 9:57 PM John Cianfarani wrote:
>I really do hate thinking I will lose it, but with any good luck it
>should only be expired for a few weeks. I plan to write the 4 exams
>within about a 4-5 week timeframe.
>I don't really have enough time to do it for the 21st, unless all I do
>is braindump it, but would prefer to go over all the material to
>remember what I forgot and go over whatever is new, instead. I figure
>this way I'll end up writing BSCI which help in going for any of the
>CCIP's. I would have preferred just to write the Composite exam then I
>could renew CCNP and CCDP at the same time. But such is life with Cisco
>Certs.
>
>Thanks for the IS-IS document.
>John
>
>-Original Message-
>From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>Sent: Thursday, July 10, 2003 3:22 PM
>To: [EMAIL PROTECTED]
>Subject: RE: CCNP ReCert Questions [7:72071]
>
>John Cianfarani wrote:
>>
>> Well I decided I wouldn't push it in such a short timeframe
>> with the one
>> exam. With work and whatever else probably won't have enough
>> time to
>> study fully for it. So I will write either all 4 again, or
>> cit/bcran
>> and then the new Composite once it's out.
>
>
>You shouldn't lose your CCNP, albeit temporarily (hopefully). Think how
>hard
>you worked to get it. How will you feel when you can no longer say you
>have
>it? I think you should try the recert exam.
>
>I'm sorry if I scared you by saying it is hard. It is hard, but study
>the
>IS-IS supplement from Cisco Press and some material on multilayer
>switching
>and eat a lot of blueberries. At least give it a try.
>
>Here's a link on multilayer switching:
>
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/
>switch_c/xcprt5/xcdmsov.htm
>
>Do you know about the free PDF document that Cisco Press put out on
>IS-IS
>for BSCI candidates? When Cisco added IS-IS, Cisco Press didn't have a
>book
>out yet that covered it (from a BSCI viewpoint anyway), so they put out
>a
>PDF. Here's a link:
>
>http://www.ciscopress.com/content/images/1578702283/downloads/BSCNSupple
>ment.pdf?session_id={D6502E20-0A8E-4868-8FE7-5A1A54F64857}
>
>Good luck whichever way you go, but I definitely recommend not lettting
>your
>CCNP disappear, even temporarily.
>
>Priscilla
>
>>
>> Anyone know if the Composite will count towards things like
>> CCIP? If it
>> doesn't I'd just take the 4 exam route.
>>
>> Thanks
>> John
>>
>> -Original Message-
>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
>> Sent: Wednesday, July 09, 2003 7:22 PM
>> To: [EMAIL PROTECTED]
>> Subject: Re: CCNP ReCert Questions [7:72071]
>>
>> Amazing wrote:
>> >
>> > I just did the CCNP recet test two weeks ago and passed with
>> > not too much
>> > studying -- used boson test to see my weak areas and just
>> > brushed up on
>> > those areas -- hint -- you can use the same study materials
>> you
>> > used three
>> > years ago -- nothing has changed.
>>
>> I wouldn't recommend just using the same material as 3 years
>> ago. There
>> are
>> some new topics, like IS-IS for Routing and multilayer
>> switching for
>> Switching. Support and Remote Access seemed to be pretty
>> similar, but
>> those
>> other two were pretty different from 3 years ago, at least in
>> my test. I
>> found it to be a two-Tums-package test for sure, depsite a good
>> score in
>> the
>> end.
>>
>> >
>> > as to the answer to your questions, my experience has been
>> that
>> > you should
>> > go directly to cisco with these questions so you have a
>>
>> I defintely agree there. Go to Cisco. Even if we give you an
>> answer, the
>> Authoritative Bit will not be set. :-) That won't stop me
>> though from
>> adding
>> a few more comments below
>>
>> > documented answer
>> > when they change their mind later on ;-)
>> >
>> > d
>> >
>> >
>> > ""John Cianfarani"" wrote in message
>> > news:[EMAIL PROTECTED]
>> > > I have to recert my CCNP by the 21st of this month. (yeah I
>> > know I left
>> > > it late, but I was busy upgrading my CSS1 to CCSP).
>> > >
>> > > I notice they have a new test coming out ( 642-891 ) Called
>> > Composite
>> > > which is based on BSCI and BCMSN, which will also let you
>> > recert your
>> > > CCNP and CCDP with at the same time. Now that test doesn't
>> > come out
>> > > until Aug 7th. Anyone know if there is still a Beta of this
>> > exam
>
Friday Funnies [7:72150]
- --- Drug Dealers Software Developers - --- Refer to their clients Refer to their clients as "users".as "users". "The first one's free!""Download a free trial version..." Have important Asian Have important Asian connections. connections. Strange jargon:Strange jargon: "Stick""SCSI" "Rock" "RTFM" "Wrap" "Packet" "E""C" "Stash""Cache" "Drive-by" "CTRL ALT DEL" "Hit (LSD)""Hit (WWW)" "Source" "Source-code" "The Pigs" "Microsoft" Realize that there's tons Realize that there's tons of cash in the 14- to of cash in the 14- to 25-year-old market.25-year-old market. Clients really like your Clients really like your stuff when it works. stuff when it works. When it doesn't work When it doesn't work they want to kill you. they want to kill you. Job is assisted by the Job is assisted by the industry's producing industry's producing newer, more potent product.newer, more potent products. Often seen in the company Often seen in the company of of pimps, hustlers and marketing people, venture low-lifes. capitalists and fund managers. When things go wrong, aWhen things go wrong, a "fix" is just a phone call "fix" is just a phone call away, but may be expensive.away, but may be expensive. A lot of people are gettingA lot of people are getting rich while still teenagers.rich while still teenagers. Product causes unhealthy DOOM, Quake, SimCity, addictions.Duke Nukem 3D... Do your job well and Damn! DAMN!!! you can sleep with sexy movie stars who depend on you. Best regards, Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org === IMPORTANT: This email is intended for the use of the individual addressee(s)named above and may contain information that is confidential privileged or unsuitable for overly sensitive persons with low self-esteem, no sense of humour or irrational religious beliefs. If you are not the intended recipient, any dissemination, distribution or copying of this email is not authorised (either explicitly or implicitly) and constitutes an irritating social faux pas. Unless the word absquatulation has been used in its correct context somewhere other than in this warning, it does not have any legal or grammatical use and may be ignored. No animals were harmed in the transmission of this email, although the poodle next door is living on borrowed time, let me tell you. Those of you with an overwhelming fear of the unknown will be gratified to learn that there is no hidden message revealed by reading this warning backwards, so just ignore that Alert Notice from Microsoft. However, by pouring a complete circle of salt around yourself and your computer you can ensure that no harm befalls you and your pets. If you have received this email in error, please add some nutmeg and egg whites and place it in a warm oven for 40 minutes. Whisk briefly and let it stand for 2 hours before icing. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72150&t=72150 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: electrical issues with switches [7:72151]
Related to this question: Does Cisco put any kind of voltage protection on the blades? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, July 11, 2003 10:47 AM To: [EMAIL PROTECTED] Subject: OT: electrical issues with switches [7:72151] This is completely off topic and, in my case, of an operational nature, so I need to apologize in advance. Unless there is some expressed interest please respond to me privately if you would, thanks. We have suffered over the last couple of years what I would consider an unusually high number of blade failures in various switches (from several vendors including Extreme and Cisco). They have the earmarks of an electrical problem, that is, supplied current spiking and valleying. For instance, where I am located - Northern Virginia - we had some major storms move through last night. This morning I had two blade failures in two separate closets. These closets all have UPS units (usually more than one) and the switches, all of which have dual power supplies, and are split with one power supply going to one UPS, the other to another UPS. Granted both are in the same room and usually plugged into the same circuit. Seemingly this would eliminate, or at least mitigate, the bulk of any electrical fluctuations in the closets. The UPS's have been tested with various diagnostic tools and they appear to check out fine. My question is this. The failures seem to occur more often on densely populated blades (isn't that always the case?). Many people in the building leave their PC's on at night. When the power goes out in this building, the PCs in most areas will also power down. When power is restored, even if it just flickers, all these machines will boot at the same time. Is there any chance that this surge - if there is one - of current coming from the rebooted PC NIC cards could cause these issues? Or is there even a current that flows back from the NIC's (it would seem logical, but I am not an EE). I do realize that I may be grasping at straws. Any thoughts, and again I apologize for the off topic content. There are many bright folks in this group so I thought I would ask. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72159&t=72151 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT: electrical issues with switches [7:72151]
Hi, I think this is a pretty interesting problem so I wouldn't mind to keep the discussion on the list. At first I was a bit skeptical about you theory that the connected NIC cards can burn out a switch blade, but if nothing else ever fails, not one supervisor card, backplane, power supply, nor any of the PCs, always only the interface cards in the switches (is this the case?), then it must be something more specific than a surge on the power grid. I would think however that if this (ie. that powering up connected PCs at the same time can harm the switch) was a generic problem, then many people would face it (the infamous rolling blackouts here in California come to mind... :). One thing that could explain what you see is if your company used the same, exotic NIC model in every PC, and that model had some special behavior. If this is the case, then perhaps you can contact the vendor of those NICs to see if they know anything (of course I wouldn't tell, if I were them, hehe :). It might be also useful to pay attention to the time of the switch failures vs. when the PCs booted up. If there is a big gap, or especially if the failure happened first, then it's less likely that it's the NIC cards' fault. Apart from this, my only suggestion is to send back the switch blades to the respective vendors and ask them to test out which component failed. That might give a hint of the cause. What kind of Cisco switches do you have? Btw, when you say that the cards have "earmarks of an electrical problem", do you mean that you can actually see signs of burns on the card? Thanks, Zsombor At 02:46 PM 7/11/2003 +, [EMAIL PROTECTED] wrote: >This is completely off topic and, in my case, of an operational nature, so >I need to apologize in advance. Unless there is some expressed interest >please respond to me privately if you would, thanks. > >We have suffered over the last couple of years what I would consider an >unusually high number of blade failures in various switches (from several >vendors including Extreme and Cisco). They have the earmarks of an >electrical problem, that is, supplied current spiking and valleying. For >instance, where I am located - Northern Virginia - we had some major storms >move through last night. This morning I had two blade failures in two >separate closets. These closets all have UPS units (usually more than one) >and the switches, all of which have dual power supplies, and are split with >one power supply going to one UPS, the other to another UPS. Granted both >are in the same room and usually plugged into the same circuit. Seemingly >this would eliminate, or at least mitigate, the bulk of any electrical >fluctuations in the closets. The UPS's have been tested with various >diagnostic tools and they appear to check out fine. > >My question is this. The failures seem to occur more often on densely >populated blades (isn't that always the case?). Many people in the building >leave their PC's on at night. When the power goes out in this building, the >PCs in most areas will also power down. When power is restored, even if it >just flickers, all these machines will boot at the same time. Is there any >chance that this surge - if there is one - of current coming from the >rebooted PC NIC cards could cause these issues? Or is there even a current >that flows back from the NIC's (it would seem logical, but I am not an EE). >I do realize that I may be grasping at straws. > >Any thoughts, and again I apologize for the off topic content. There are >many bright folks in this group so I thought I would ask. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72160&t=72151 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Catalyst 4506 - Which Supervisor card? [7:72156]
With the Sup IV, you could use the 4507R chassis and have the ability to use redundant supervisors in the future. I think the switching speed of the Sup IV is faster and you can do L3 as well. Things the Sup II can't do. >>> "Johns, John A." 07/11/03 12:14PM >>> Wanted to get some feedback from some folks that are using either the Sup II+ card or the Sup IV card.. There is over a $3,000.00 difference in cost.. Anybody using the SUP II+? Any issues? Thanks, John A. Johns, CCIE No. 7983, CCDP, CCNP, MCSE, MCSA, MCP+I, CCA, A+ [snip] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72161&t=72156 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: electrical issues with switches [7:72151]
I'd also like to know if Cisco puts voltage protection on the blades? While not exactly the same thing, at my last position we had hundreds of serial terminal servers (Nortel Annex) connected to dumb terminals (all over the country). We found that during bad weather, or other power related issues, the terminal server's serial connections (RJ45) acted as lightning rods. While the terminal server was on APC, the dumb terminals generally were not. When the terminals received a power surge (etc..) they would happily redistribute the jolt to the the serial port and then the terminal server, frying individual ports, blades, and sometimes the entire terminal server. 95% of the time the dumb terminals were fine once the terminal server was replaced. In 2 years we probably replaced 85 of the 350 or so deployed. Jeremy Porter, CCNP, CCDA -Original Message- From: Mossburg, Geoff (MAN-Corporate) [mailto:[EMAIL PROTECTED] Sent: Friday, July 11, 2003 2:42 PM To: [EMAIL PROTECTED] Subject: RE: electrical issues with switches [7:72151] Related to this question: Does Cisco put any kind of voltage protection on the blades? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, July 11, 2003 10:47 AM To: [EMAIL PROTECTED] Subject: OT: electrical issues with switches [7:72151] This is completely off topic and, in my case, of an operational nature, so I need to apologize in advance. Unless there is some expressed interest please respond to me privately if you would, thanks. We have suffered over the last couple of years what I would consider an unusually high number of blade failures in various switches (from several vendors including Extreme and Cisco). They have the earmarks of an electrical problem, that is, supplied current spiking and valleying. For instance, where I am located - Northern Virginia - we had some major storms move through last night. This morning I had two blade failures in two separate closets. These closets all have UPS units (usually more than one) and the switches, all of which have dual power supplies, and are split with one power supply going to one UPS, the other to another UPS. Granted both are in the same room and usually plugged into the same circuit. Seemingly this would eliminate, or at least mitigate, the bulk of any electrical fluctuations in the closets. The UPS's have been tested with various diagnostic tools and they appear to check out fine. My question is this. The failures seem to occur more often on densely populated blades (isn't that always the case?). Many people in the building leave their PC's on at night. When the power goes out in this building, the PCs in most areas will also power down. When power is restored, even if it just flickers, all these machines will boot at the same time. Is there any chance that this surge - if there is one - of current coming from the rebooted PC NIC cards could cause these issues? Or is there even a current that flows back from the NIC's (it would seem logical, but I am not an EE). I do realize that I may be grasping at straws. Any thoughts, and again I apologize for the off topic content. There are many bright folks in this group so I thought I would ask. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72163&t=72151 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
802.16 and Cisco [7:72164]
Hi, Does anybody knw wether Cisco has implemented 802.16 or not, and what products and/or solutions Cisco has for it? Any URLs would also be appriciated. Thanks in advance, Hamid Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72164&t=72164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: CCIE:Security Practical Studies [7:72162]
Just looking to get others opinions on this book. I'm just now to the OSPF chapter, and I have already found several pages worth of mistakes. I have an e-mail into ciscopress with a listing of the errors, and I understand that any first edition will have some, but I'm finding critical mistakes as well as configuration errors that should be obvious, yet somehow they were overlooked. Was the original CCIE:practical studies full of errors as well? Maybe I'm expecting to much, but I find myself questioning everything that the authors have written because of the mistakes I have found. Not what I was expecting from a CCIE Level book. Not trying to slam the authors, just trying to get others opinions... Thanks Larry Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72162&t=72162 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: an ISIS question.... [7:72081]
that helps... thanks a lot! I am taking the 350-001 next week... feel so much left to read :( Ellie Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72165&t=72081 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Frame-relay & HSRP [7:72166]
Dear all I have a question about frame-relay. Network Diagram is below. R1* * *R3 | * FR * | R2* * *R4 I configured a HSRP between R1 and R2, R3 and R4. R1,R3 are Active router.(R2,R4 are Standby router) And I configured standby track in a Wan side of R1,R3. When I disabled(shutdown the interface) the serial0/0 of R1 , then R2 became Active router. It's ok. But R3 didn't detect a down of Wan side,so serial0/0 of R3 is up-up. Therefore,I can't send a data between R2 and R4. Regarding Frame-relay configuration, I configured frame-relay in main-interface. Is it a mechanism of Frame-relay in main-interface ? I don't know in detail. Should I use sub-interface & point-2-point definition in frame-relay to use HSRP standby track ? Please explain me about this problem. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72166&t=72166 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Frame-relay & HSRP [7:72166]
When you have a FR connection, you have a dedicated circuit to your provider which then on taps into the frame cloud. So consider it alomost like a point-to-point link to your local Carrier and then from there you connect within the providers Frame Switch into their Frame Relay cloud. Now, when you shutdown R1's Wan interface your HSRP failed over fine. The reason that R3 was showing Up Up was that your circuit to your carrier from R3 did not go down and it stil exhanges LMI with R3's Physical interface, your PVC should have been showing INACTIVE at this point though. I would recommend using point-to-point subinterfaces on your FR WAN connections. When you do this and then shut down one end of the link the line protocol on the sub-interface of R3 would go "UP DOWN" and if you then track the SUB-Interface, you should have a successful failover for the "Standby Track" command on R3. Currently, you have outboud traffic going out R2 --->R4 and return traffic going to the Active HSRP router "R3" then dropping packets because your PVC is INACTIVE and you are in an UP UP state.. You have successfully achieved Asymetrical routing.. :( Until your Interface Line protocol Drops in an "UP DOWN" state on R3's WAN interface.. then Standby Interface tracking wont do anything.. Masaru Umetsu wrote: > > Dear all > > I have a question about frame-relay. Network Diagram is below. > > R1* * *R3 > | * FR * | > R2* * *R4 > > I configured a HSRP between R1 and R2, R3 and R4. > R1,R3 are Active router.(R2,R4 are Standby router) > And I configured standby track in a Wan side of R1,R3. > > When I disabled(shutdown the interface) the serial0/0 of R1 , > then R2 became Active router. It's ok. > But R3 didn't detect a down of Wan side,so serial0/0 of R3 is > up-up. > Therefore,I can't send a data between R2 and R4. > Regarding Frame-relay configuration, I configured frame-relay in > main-interface. Is it a mechanism of Frame-relay in > main-interface ? > I don't know in detail. Should I use sub-interface & > point-2-point > definition in frame-relay to use HSRP standby track ? Please > explain me > about this problem. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72168&t=72166 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCNP Lab Simulator [7:72167]
I am preparing for the CCNP certification. Anyone know of a good CCNP Lab Simulator? Please provide experience and details. Thanks Alan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72167&t=72167 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RADIUS [7:72170]
Hello I have two radius servers configured on my AS5400. CAn anyone tell how will the requests go??What i can see the AS5400 sends the requests to first server listed, and if the server does not responds for 3 queries , it sends to the 2nd server. But will it not happen that every request will be sent to the 1st server and then to the 2nd server. I also want that when the 1st server is recovered the queries start going to it rather than to the 2nd server without any service disruption. Plz help thanks in advance Chirag Arora **Disclaimer Information contained in this E-MAIL being proprietary to Wipro Limited is 'privileged' and 'confidential' and intended for use only by the individual or entity to which it is addressed. You are notified that any use, copying or dissemination of the information contained in the E-MAIL in any manner whatsoever is strictly prohibited. *** Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72170&t=72170 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
