Re: Vlans - maximum no of devices [7:8128]
Are you running multiple protocols, or just one (IP)? I've read that... when running multiple protocols you should limit your broadcast domain to approximatley 200 hosts. A single protocol domain can support more... (500?). Any thoughts? kelly Quoting Patrick Ramsey : We run about 750-950 computers/printers in each of our vlans. (major facillites) with no performance problems. I couldn't imagine only having 200 devices per vlan. That would be close to 2 subnets in each of our closets. We run on 6509's with POS blades in a full mesh. Broadcasts are not that bad at each facillity. Utilization stays at less than 15% on the LAN and no more than 30% across the WAN links. -Patrick CCB 06/14/01 12:55AM I have to agree, I would not personally put more than around 200 devices in a broadcast domain and that is pushing it. If it is possible I would break it into two or more VLANS and route between the VLANS, this help out in the performance arena. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Hire, Ejay Sent: Tuesday, June 12, 2001 6:19 AM To: [EMAIL PROTECTED] Subject: RE: Vlans - maximum no of devices [7:8128] The theory behind it is this. Would you, in a preplanned network deployment, put over 250 devices in the same Broadcast domain? -Original Message- From: John Kale [mailto:[EMAIL PROTECTED]] Sent: Tuesday, June 12, 2001 5:45 AM To: [EMAIL PROTECTED] Subject: Vlans - maximum no of devices [7:8128] hi all, I read somewhere that there can only be a maximum of 254 devices in a vlan. I'm currently redesigning a network that would have a vlan containing about 300 devices. Is the 254 restriction a design one? Please can someone enlighting me on this issue. regards, Tunde _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=9592t=8128 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCNP Books ? [7:6058]
As far as searching for books goes... don't forget to compare prices with http://www.bestbookbuys.com --- And --- http://www.addall.com Kelly Quoting [EMAIL PROTECTED] (Timothy Ouellette) : I used the CCNP preparation library to study towards the CCNP. Each book in this series maps very well to the exam outline. I also used the vast library at cisco.com to solidify any doubts. Also, the boson tests help keep my mind sharp as to all the little details that you may get hit with while taking each exam. Do a search on bookpool.com for this series as I found their prices to be much better than some of the other vendors online. Hope this helped. Tim On 27 May 2001 04:08:36 -0400, [EMAIL PROTECTED] (Taufik A Lubis) wrote: I have a planning to prepare CCNP test (WAN Switching , Routing and etc) ... but i just know books from sybex does anybody know about the others books about CCNP material tests ? which one better ? Thanks for informations Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=6684t=6058 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: DNS and PIX
You can put it in either place, but I would put it behind the PIX. You can create a conduit for it and only allow it to use port 53 (tcp and udp). I hope you have more than one dns server. And if you don't already use the split dns concept, I'd give that some serious thought. kelly Quoting Austin [EMAIL PROTECTED]: We have our own Web Server with a legal ip address which is NAT'd (is that a word?) from our LAN to the outside? Where do I put the DNS Server? Behind the PIX on the LAN (inside interface) or the outside interface? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2610 csu/dsu configuration
I figured out how to configure it last Friday. My earliest oportuntiy for testing is tonight after our production hours. Thanks for all the replies. kelly Quoting Taylor, Don [EMAIL PROTECTED]: Yes, you're right; I wasn't specific enough, I suppose, in my explanation. I know the encapsulation is configured on the router under the interface and that it's separate from the CSU. Since the question indicated configuring the CSU for HDLC, I mentioned that she didn't need to change it. I should have specified that even if she had to, it would be separate from the CSU. My bad! =( Sorry, if I've confused anyone. - Don -Original Message- From: Chuck Larrieu [mailto:[EMAIL PROTECTED]] Sent: Friday, December 01, 2000 4:02 PM To: Taylor, Don; [EMAIL PROTECTED] Subject: RE: 2610 csu/dsu configuration Don, I believe that a CSU is a layer one device. I have never seen any option on any CSU I have ever worked with, internal or external, for line encapsulation. It is always AMI / B8ZS and SF / ESF choices. on the router interface is where you configure HDLC or PPP. ( Or SDLC or SMDS or frame relay, for that matter. ) This is done with both internal and external CSU's. notice that within the Cisco config, you even differentiate between the serial interface and the service module when issuing commands. Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Taylor, Don Sent: Friday, December 01, 2000 2:38 PM To: 'Kelly Scroggins'; [EMAIL PROTECTED] Subject: RE: 2610 csu/dsu configuration There's not too much to it. HDLC is the default encapsulation, so you won't have to change that. And if the second router you're connecting too has a Cisco internal CSU, they'll have the same default. Basically you just need to put clocking on one of the routers and that should do it. The command is "clock rate ?" (you get to choose the speed - might as well go with the fastest, 400). The commands for configuring your CSU, though, are (in interface config mode) "service-module t1 ?" (get the list). The ones I use most often are: "service-module t1 timeslots 1-24 speed 64"; this sets the CSU up for 24 channels at 64K per channel (T1 speed) "service-module t1 linecode b8zs"; B8ZS line coding, as opposed to AMI (your provider can tell you which one to use) "service-module t1 framing esf"; ESF or SF are your framing choices Hope that helps. Lemme know if you need something else. - Don -----Original Message- From: Kelly Scroggins [ mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] ] Sent: Friday, December 01, 2000 12:35 PM To: [EMAIL PROTECTED] Subject: 2610 csu/dsu configuration Can someone point me to some good documentation on how to configure the csu/dsu module in a 2610 for a plain ordinary hdlc t1 connection? Thanks, kelly _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
2610 csu/dsu configuration
Can someone point me to some good documentation on how to configure the csu/dsu module in a 2610 for a plain ordinary hdlc t1 connection? Thanks, kelly _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco Certification Digest V2 #816
Try a musical instrument store. One that sells guitars and drums and most importantly, sound equipment. They will have all sizes and shapes of racks. These are sometimes called anvil cases, but not always. Anvil was a company that set the standard for all others. I think they were the first to produce these type of cases for the touring musicians. kelly Quoting Paul Werner [EMAIL PROTECTED]: Hi, all, Y'all recall that I posted a few weeks ago for a router cabinet. Well, I got some good leads, and then my circumstances have changed...again. I will be spending alot of time in KC in a corporate apartment for the next 2-8 months, so rack mounting my routers at home won't do me any good. I want to take them with me on the plane to my new quarters. Does anyone know where I can buy one of those flight cases with the 19 inch rack inside that are about 3-4 feet high, and can can hold about 8 2500 sized routers? (The AGS will be staying at home.) I plan on taking my routers with me so that I can while the hours away with study. The case I am looking for is very similar to what the instructors use to transport their routers from class to class. Most of us have seen them: the instructor pops the top and inside are the cabled routers ready for use. I have been all over the web, and can not find exactly what I need. I don't even know if flight case is the right word. I've heard the following terms used to describe the cases: anvil case travel case http://www.casestogo.com/ HTH, Paul Werner Get your own "800" number - Free Free voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
free book -- Stop hackers cold with hot new firewalls
Now you can get the whole Cisco Secure PIX Firewall family story and discover what every business needs to know to keep its networks secure with a FREE edition of the new Cisco "SAFEguarding the E-Business Network" book. Simply visit http://www.cisco.com/offer/pixfamily/V590-1008Y today. Supplies are extremely limited, so register now! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
input queue / sap table problems
I've been searching for information on a problem I have with one of my remote sites. I'm seeing two problems and this document makes me think they might be related. Except my version of the IOS is a little older than what is stated in this document. ( http://cisco.google.com/cisco?client=ciscoq=cache%3Ahttp%3A%2F%2Fwww%2Ecisco%2Ecom%2Fwarp%2Fpublic%2F770%2Ffn285_08101998%2Eshtml+input+queue ) Here is my topology : [router 1]-atm link---[router 2] ** Problem 1: The sap table on router 2 seems to have all of the current information. But the saps for the network connected to router 2 is not being propagated to the rest of the internetwork. In other words the rest of the internetwork doesn't know about the ipx devices behind router 2. ** Problem 2: The network on router 2 looses connectivity almost everyday. The time frame is usually anywhere from around 12:00 pm to 4:00 pm. I cannot find any scheduled events on, or to this network. Some of the overall symptoms are : - the input queue 'drops' count is high. - the utilization goes high during the periods of connectivity problems. - router 2's sap table is not propagated to the internetwork. Yet router 2 receives sap table packets just fine. Evidence of this is revealed with the 'show ipx interface' command. Which shows that the 'output' of sap packets are very low compared to the 'input' of sap packets on router 2. i.e., router 2: SAP packets received 184041, SAP packets sent 1 router 1: SAP packets received 338, SAP packets sent 196522 Thanks for any and all suggestions, kelly ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Free Book(let)
http://www.cisco.com/pcgi-bin/lm/show_form.pl?95910771478430175781251140TEST-100XA ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: spanning-tree
Would you (anyone) happen to know whether Radia is up dating her book? kelly Quoting Irwin Lazar [EMAIL PROTECTED]: Your best bet is to get a copy of "Interconnections" by Radia Perlman. Radia wrote the Spanning Tree protocol and nobody explains it better. You can also see my web site at http://www.itprc.com/ and check out the datalink page for links to Ethernet resources. And finally, a new version of spanning tree is now emerging. It's IEEE name is 802.3w and it offers much faster convergence times. You should be able to find more information about it on the above web site's "physical" page. There you'll find a link to the IEEE 802.3 standards page. Irwin -Original Message- From: Deepak Sharma [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 18, 2000 8:51 PM To: cisco Subject: spanning-tree does anyone pls. send me a link to a website that will explain this concept in more detail. I know what spanning tree is and all, and i know the functionallity, but i still don't get on how they designate the ports...like which one becomes the root bridge and so on... thank you in advance Deepak ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Boot Propmt
Quoting skt [EMAIL PROTECTED]: Hi, I have recently added 8 mb of flash to my 4000 router but when it boots it comes to routerboot prompt.. can any one give some info It looks like it's not finding the image to load. I don't remember if the command to tell it where the image is - is available at the ROMMON prompt or not but you could try it. First check to see if you have an image in flash, and what it's name is. sh flash Then set it to boot to that image. I think it's like this : boot system flash name of flash file here If that fails you could reload the flash from a tftp server. You might also check the config-register setting. Check that with the sh ver command. It should be set to 0x2102 HTH, kelly thanks in adv ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How to get - Links to free books?
I've done all the same things you mentioned. As I said, I used to get the email announcements too. But . Oh well, it's not that big of a deal. I was just curious. I'll see the messages on this list and the other web sites people have mentioned. kelly Quoting Kevin Marley [EMAIL PROTECTED]: I think the real question is how to get Cisco to send you the links for free books as they come out. For every free offer I have recieved from Cisco I click the "contact me with more info" button, and I do the phone interviews they conduct when sending out the books. But, I have never recieved an email stating a free book is coming out. I also work for a named account. So I guess it doesn't help if you buy a ton of equipment from them either. What is the great mystery to getting on the "sacred" list of free stuff? Date: Wed, 10 May 2000 14:38:41 +0100 From: "JohnMail" [EMAIL PROTECTED] Subject: Re: Links to free books? Larry: I have benefited greatly from CISCO's free book offers. I also have one quick question. How to you know when CISCO is about to offer a free book? Is there a special CISCO link for this? Thanks, John. From: Larry Osei-Kwaku [EMAIL PROTECTED] To: G_study [EMAIL PROTECTED]; [EMAIL PROTECTED] Sent: Wednesday, May 10, 2000 9:12 AM Subject: Re: Links to free books? Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
