nanog mailing list archives
RE: Cisco IOS Failure due to Virus
From: Mark Segal <MSegal () Corporate FCIBroadband com>
Date: Mon, 15 Sep 2003 15:33:36 -0400
Got love nanog.. A nice man from cisco called me, it looked like a lot of packets on my router were being process switched (sh ip cache - displayed A LOT of entries). Anyway, it turns our some of my atm sub-ints inherited a "no ip route-cache cef" from a parent int and well you can see what happens when the packet volume increase. Richard I would check that.. So now to life the rate-limit and see what happens.. Regards, Mark -- Mark Segal Director, Network Planning FCI Broadband Tel: 905-284-4070 Fax: 416-987-4701 http://www.fcibroadband.com Futureway Communications Inc. is now FCI Broadband -----Original Message----- From: Mark Segal [mailto:MSegal () Corporate FCIBroadband com] Sent: September 15, 2003 1:50 PM To: 'Richard J.Sears'; 'Robert Blayzor' Cc: 'Nanog'; Mihai Iancu Subject: RE: Cisco IOS Failure due to Virus We are seeing the same problem on all of the 6400-nrp aggregation boxes we have in the network. Here is the IOS bug ID - CSCec12495.. Actually by rate limiting icmp on our network the problems have stopped/slowed down a lot. Sorry for the delay.. Was out of the country for a while.. Mark -- Mark Segal Director, Network Planning FCI Broadband Tel: 905-284-4070 Fax: 416-987-4701 http://www.fcibroadband.com Futureway Communications Inc. is now FCI Broadband -----Original Message----- From: Richard J.Sears [mailto:rsears () adnc com] Sent: September 11, 2003 12:26 AM To: Robert Blayzor Cc: Nanog Subject: Re: Cisco IOS Failure due to Virus Hi Robert, Thanks for the info. We are running dCEF...routers show about 4% CPU load and the following memory: BR02#sh mem Head Total(b) Used(b) Free(b) Lowest(b) Largest(b) Processor 613AE340 247798976 106515996 141282980 140653360 134546752 Fast 6138E340 131080 37240 93840 93840 93788 Also, we are not blocking 92 byte ICMP due to the traceroute problems on customers networks... Thanks On Wed, 10 Sep 2003 23:17:01 -0400 Robert Blayzor <rblayzor () inoc net> wrote:
On 9/10/03 10:58 PM, "Richard J.Sears" <rsears () adnc com> wrote:%SYS-2-MALLOCFAIL: Memory allocation of 704 bytes failed from 0x60329F00, alignment 0 Pool: Processor Free: 92744 Cause: Memory fragmentation Alternate Pool: None Free: 0 Cause: No Alternate pool -Process= "Pool Manager", ipl= 0, pid= 6 -Traceback= 6038049C 60382200 60329F08 6038DEDC %TCP-6-NOBUFF: TTY0, no buffer available -Process= "BGP Router", ipl= 0, pid= 132 %% Low on memory; try again laterDid you enable CEF? Are you dropping 92 byte ICMP packets where needed? -- Robert Blayzor, BOFH INOC, LLC rblayzor () inoc net PGP: http://www.inoc.net/~dev/ Key fingerprint = A445 7D1E 3D4F A4EF 6875 21BB 1BAA 10FE 5748 CFE9 "I don't need parents. All I need is a recording that says, 'Go play outside!" - Calvin and Hobbes
****************************************** Richard J. Sears Vice President American Digital Network ---------------------------------------------------- rsears () adnc com http://www.adnc.com ---------------------------------------------------- 858.576.4272 - Phone 858.427.2401 - Fax ---------------------------------------------------- I fly because it releases my mind from the tyranny of petty things . . "Work like you don't need the money, love like you've never been hurt and dance like you do when nobody's watching."
Current thread:
- Re: Cisco IOS Failure due to Virus, (continued)
- Re: Cisco IOS Failure due to Virus Richard J . Sears (Sep 10)
- Some very strange network behaviors Christopher Bird (Sep 10)
- Re: Some very strange network behaviors Stephen J. Wilcox (Sep 11)
- Re: Some very strange network behaviors Mike Lewinski (Sep 11)
- Re: Some very strange network behaviors Crist Clark (Sep 11)
- Re: Cisco IOS Failure due to Virus Stephen J. Wilcox (Sep 11)
- Re: Cisco IOS Failure due to Virus Petri Helenius (Sep 12)
- Re: Cisco IOS Failure due to Virus Stephen J. Wilcox (Sep 12)
- Re: Cisco IOS Failure due to Virus Petri Helenius (Sep 12)
- RE: Cisco IOS Failure due to Virus Niaz, Wajahat (Sep 10)
- RE: Cisco IOS Failure due to Virus Mark Segal (Sep 15)
- RE: Cisco IOS Failure due to Virus Mark Segal (Sep 15)