RE: Router down for a few seconds, many times [7:31308]
Are you running any GRE tunnels through pix? -Keyur Shah- CCIE# 4799 (Security; Routing and Switching) css1,ccna,ccda,scsa,scna,mct,mcse,mcp+i,mcp,cni,mcne,cne,cna Hello Computers Say Hello to Your Future! http://www.hellocomputers.com Toll-Free: 1.877.794.3556 Fremont: 510.795.6815 Santa Clara: 408.496.0801 Europe: +(44)20 7900 3011 Fax: 510.291.2250 -Original Message- From: NetEng [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 08, 2002 11:37 AM To: [EMAIL PROTECTED] Subject: Router down for a few seconds, many times [7:31308] I have a Cisco 4000 in the core that goes down for 15 seconds or so about 10 times a day. All interfaces are unreachable (pinging), and from what I can tell the actual interfaces never actually drop. I will console into it, but any ideas what I can look for? show processes and ?TIA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=31416t=31308 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Router down for a few seconds, many times [7:31308]
Thanks for all the thoughts.Come to find out the the serial int were dropping for 2s at a time at no regular interval. I was tooling around and I did a show version and saw a bus error. I looked up the error on TAC and the processor was tryint to write to memory that was already allocated (bug in IOS) or memory that did not exist (bad RAM). Before upgrading either one I thought maybe a cold boot to clear all RAM might work and it did! Granted there might be a bad piece of RAM or a bug in the IOS (ver 11.3), but its no longer dropping the interfaces. A temporary fix until I can get new RAM/IOS. Thanks again for everyones help. Collin NetEng wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a Cisco 4000 in the core that goes down for 15 seconds or so about 10 times a day. All interfaces are unreachable (pinging), and from what I can tell the actual interfaces never actually drop. I will console into it, but any ideas what I can look for? show processes and ?TIA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=31429t=31308 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Router down for a few seconds, many times [7:31308]
If you follow my RouterChief link below, there's a good link to cheap memory for your router. Hth, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNP, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: NetEng [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 09, 2002 12:26 PM To: [EMAIL PROTECTED] Subject: Re: Router down for a few seconds, many times [7:31308] Thanks for all the thoughts.Come to find out the the serial int were dropping for 2s at a time at no regular interval. I was tooling around and I did a show version and saw a bus error. I looked up the error on TAC and the processor was tryint to write to memory that was already allocated (bug in IOS) or memory that did not exist (bad RAM). Before upgrading either one I thought maybe a cold boot to clear all RAM might work and it did! Granted there might be a bad piece of RAM or a bug in the IOS (ver 11.3), but its no longer dropping the interfaces. A temporary fix until I can get new RAM/IOS. Thanks again for everyones help. Collin NetEng wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a Cisco 4000 in the core that goes down for 15 seconds or so about 10 times a day. All interfaces are unreachable (pinging), and from what I can tell the actual interfaces never actually drop. I will console into it, but any ideas what I can look for? show processes and ?TIA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=31444t=31308 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Router down for a few seconds, many times [7:31308]
Check the load on the link. Check cpu load. Check sh int to make sure no int's were reset. Check with your service provider to make sure they're not having any problems, check with the LEC to check your circut to see if it's dirty. -- RFC 1149 Compliant. FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Router down for a few seconds, many times [7:31308]
Got logging setup somewhere looking for errors that correspond with this? Brian Sonic Whalen Success = Preparation + Opportunity On Tue, 8 Jan 2002, [EMAIL PROTECTED] wrote: Well, show log would be a good start. You haven't given us much to go on, but if the interfaces don't actually drop it could be a routing protocol problem. Or it could be a lot of other things :-) Does this happen at specific times? Regular intervals? Or is it random? Is there anything else happening on your network that you can correlate with this? What does the log show? Hopefully that will give you an idea of what to look at. You may then need to put on some debugs to get further information. Use debugs cautiously or they can hang a perfectly healthy router! JMcL - Forwarded by Jenny Mcleod/NSO/CSDA on 09/01/2002 09:02 am - NetEng cc: Sent by: Subject: Router down for a few seconds, many nobody@groupstudy.times [7:31308] com 09/01/2002 06:36 am Please respond to NetEng I have a Cisco 4000 in the core that goes down for 15 seconds or so about 10 times a day. All interfaces are unreachable (pinging), and from what I can tell the actual interfaces never actually drop. I will console into it, but any ideas what I can look for? show processes and ?TIA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=31350t=31308 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
