Re: Strange Problem with router... [7:6293]
kiran, whats your config? mem/process info?? attached following info to locate the problem : - show run - show proc cpu hi - show proc - show mem su - show ip route summary thanks rahul. - Original Message - From: "Kiran Kumar M" To: Sent: Tuesday, May 29, 2001 1:19 PM Subject: Strange Problem with router... [7:6293] > Hi, > > I am facing a strange problem from last two days. One of my 3640 router > is behaving in a strange manner. > > Sudenly it is becoming 60 - 99 % CPU utilization.(Usally 20 - 30 %) at the > same time It is droping the output packets on Main Serial link (which is > using for uplink/downlink) and input packets on fastethernet (Used for > LAN) port. Even these Interfaces are not overloading.. > > On the same router I am having 17 more serial links, and 1 more fast > ethernet, and one ethernet interfaces and all are in working. I am using > wccp v1, and BGP also on the same router. > > After Observing the problem I did the following things. > > 1) Increased the hold-queue to 4096 > 2) stopped the wccp > > and observed the status. But there is no use. It behaved in the same > pasion. So I kept the things back. > > I am wondering.. if anybody help me.. The traffic is same and not > varying.. but it is very much flutuating.. > > Please give me suggestions.. if anybody have any idea.. > > Thanks, > Kiran > > PS: The router is not giving this problem continuously.. for 2 mins.. its > working properly.. next 2 or 3 mins.. dropping the packets.. and next 2 > mins.. working properly.. > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6298&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Strange Problem with router... [7:6293]
yup. thats going to happen when you plug that many serial links into the 3640. look at the mtu, look at your pps, and look at the 2640's forwarding capabilities. i have a cusdtomer who's 2640 freaks out the same way with 8 t-1s coming into it... Peter Slow, CCNP Voice Specialist Network Engineer Planetary Networks 535 West 34th Street New York, NY 10001 Cell:(516) 782.1535 Desk: (646) 792.2395 Mail: [EMAIL PROTECTED] Fax:(646) 792.2396 - Original Message - From: "Kiran Kumar M" To: Sent: Tuesday, May 29, 2001 4:19 PM Subject: Strange Problem with router... [7:6293] > Hi, > > I am facing a strange problem from last two days. One of my 3640 router > is behaving in a strange manner. > > Sudenly it is becoming 60 - 99 % CPU utilization.(Usally 20 - 30 %) at the > same time It is droping the output packets on Main Serial link (which is > using for uplink/downlink) and input packets on fastethernet (Used for > LAN) port. Even these Interfaces are not overloading.. > > On the same router I am having 17 more serial links, and 1 more fast > ethernet, and one ethernet interfaces and all are in working. I am using > wccp v1, and BGP also on the same router. > > After Observing the problem I did the following things. > > 1) Increased the hold-queue to 4096 > 2) stopped the wccp > > and observed the status. But there is no use. It behaved in the same > pasion. So I kept the things back. > > I am wondering.. if anybody help me.. The traffic is same and not > varying.. but it is very much flutuating.. > > Please give me suggestions.. if anybody have any idea.. > > Thanks, > Kiran > > PS: The router is not giving this problem continuously.. for 2 mins.. its > working properly.. next 2 or 3 mins.. dropping the packets.. and next 2 > mins.. working properly.. > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6300&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Strange Problem with router... [7:6293]
Hi Peter, Thanks for your mail. But I was using the same for last 16 months, almost with same setup. I never faced this problem. mtu is default, pps it can support upto 40,000 to 70,000 (according to cisco site), in my case it never reached to that point.. Thanks, Kiran On Tue, 29 May 2001, Peter I. Slow, CCNP Voice Specialist wrote: > yup. > thats going to happen when you plug that many serial links into the 3640. > look at the mtu, look at your pps, and look at the 2640's forwarding > capabilities. > i have a cusdtomer who's 2640 freaks out the same way with 8 t-1s coming > into it... > > Peter Slow, CCNP Voice Specialist > Network Engineer > Planetary Networks > 535 West 34th Street > New York, NY > 10001 > Cell:(516) 782.1535 > Desk: (646) 792.2395 > Mail: [EMAIL PROTECTED] > Fax:(646) 792.2396 > - Original Message - > From: "Kiran Kumar M" > To: > Sent: Tuesday, May 29, 2001 4:19 PM > Subject: Strange Problem with router... [7:6293] > > > > Hi, > > > > I am facing a strange problem from last two days. One of my 3640 router > > is behaving in a strange manner. > > > > Sudenly it is becoming 60 - 99 % CPU utilization.(Usally 20 - 30 %) at the > > same time It is droping the output packets on Main Serial link (which is > > using for uplink/downlink) and input packets on fastethernet (Used for > > LAN) port. Even these Interfaces are not overloading.. > > > > On the same router I am having 17 more serial links, and 1 more fast > > ethernet, and one ethernet interfaces and all are in working. I am using > > wccp v1, and BGP also on the same router. > > > > After Observing the problem I did the following things. > > > > 1) Increased the hold-queue to 4096 > > 2) stopped the wccp > > > > and observed the status. But there is no use. It behaved in the same > > pasion. So I kept the things back. > > > > I am wondering.. if anybody help me.. The traffic is same and not > > varying.. but it is very much flutuating.. > > > > Please give me suggestions.. if anybody have any idea.. > > > > Thanks, > > Kiran > > > > PS: The router is not giving this problem continuously.. for 2 mins.. its > > working properly.. next 2 or 3 mins.. dropping the packets.. and next 2 > > mins.. working properly.. > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6304&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Strange Problem with router... [7:6293]
Hi Have you changed anything in the network of late? With the very little amount of information you have provided (about the network), my first thought is something with SNMP is polling the router at a regular time. There are several SNMP bugs in several versions of the IOS. The last time I was faced with something like this, a edge router was going brain dead (70-99% CPU) every hour on the hour. It required a reboot to get it back. I had recently added a fair amount of NAT and ACLs to the router and thought that was the problem, but it turned out that another admin working on getting Cisco Works up and running had inadvertently put Works on the production network. There was a bug in the IOS on the edge router and when Works polled it, it would hit 70-99% CPU and would have to rebooted. I upgraded the IOS and the problem went a away. HTH -- John Hardman CCNP MCSE ""Kiran Kumar M"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi Peter, > > Thanks for your mail. But I was using the same for last 16 months, almost > with same setup. I never faced this problem. > > mtu is default, pps it can support upto 40,000 to 70,000 (according to > cisco site), in my case it never reached to that point.. > > Thanks, > Kiran > > On Tue, 29 May 2001, Peter I. Slow, CCNP Voice Specialist wrote: > > > yup. > > thats going to happen when you plug that many serial links into the 3640. > > look at the mtu, look at your pps, and look at the 2640's forwarding > > capabilities. > > i have a cusdtomer who's 2640 freaks out the same way with 8 t-1s coming > > into it... > > > > Peter Slow, CCNP Voice Specialist > > Network Engineer > > Planetary Networks > > 535 West 34th Street > > New York, NY > > 10001 > > Cell:(516) 782.1535 > > Desk: (646) 792.2395 > > Mail: [EMAIL PROTECTED] > > Fax:(646) 792.2396 > > - Original Message - > > From: "Kiran Kumar M" > > To: > > Sent: Tuesday, May 29, 2001 4:19 PM > > Subject: Strange Problem with router... [7:6293] > > > > > > > Hi, > > > > > > I am facing a strange problem from last two days. One of my 3640 router > > > is behaving in a strange manner. > > > > > > Sudenly it is becoming 60 - 99 % CPU utilization.(Usally 20 - 30 %) at > the > > > same time It is droping the output packets on Main Serial link (which is > > > using for uplink/downlink) and input packets on fastethernet (Used for > > > LAN) port. Even these Interfaces are not overloading.. > > > > > > On the same router I am having 17 more serial links, and 1 more fast > > > ethernet, and one ethernet interfaces and all are in working. I am using > > > wccp v1, and BGP also on the same router. > > > > > > After Observing the problem I did the following things. > > > > > > 1) Increased the hold-queue to 4096 > > > 2) stopped the wccp > > > > > > and observed the status. But there is no use. It behaved in the same > > > pasion. So I kept the things back. > > > > > > I am wondering.. if anybody help me.. The traffic is same and not > > > varying.. but it is very much flutuating.. > > > > > > Please give me suggestions.. if anybody have any idea.. > > > > > > Thanks, > > > Kiran > > > > > > PS: The router is not giving this problem continuously.. for 2 mins.. its > > > working properly.. next 2 or 3 mins.. dropping the packets.. and next 2 > > > mins.. working properly.. > > > 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] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6330&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Strange Problem with router... [7:6293]
What IOS version fixed your problem? Aurelian Georgescu -Original Message- From: John Hardman [mailto:[EMAIL PROTECTED]] Sent: Tuesday, May 29, 2001 9:34 PM To: [EMAIL PROTECTED] Subject: Re: Strange Problem with router... [7:6293] Hi Have you changed anything in the network of late? With the very little amount of information you have provided (about the network), my first thought is something with SNMP is polling the router at a regular time. There are several SNMP bugs in several versions of the IOS. The last time I was faced with something like this, a edge router was going brain dead (70-99% CPU) every hour on the hour. It required a reboot to get it back. I had recently added a fair amount of NAT and ACLs to the router and thought that was the problem, but it turned out that another admin working on getting Cisco Works up and running had inadvertently put Works on the production network. There was a bug in the IOS on the edge router and when Works polled it, it would hit 70-99% CPU and would have to rebooted. I upgraded the IOS and the problem went a away. HTH -- John Hardman CCNP MCSE ""Kiran Kumar M"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi Peter, > > Thanks for your mail. But I was using the same for last 16 months, almost > with same setup. I never faced this problem. > > mtu is default, pps it can support upto 40,000 to 70,000 (according to > cisco site), in my case it never reached to that point.. > > Thanks, > Kiran > > On Tue, 29 May 2001, Peter I. Slow, CCNP Voice Specialist wrote: > > > yup. > > thats going to happen when you plug that many serial links into the 3640. > > look at the mtu, look at your pps, and look at the 2640's forwarding > > capabilities. > > i have a cusdtomer who's 2640 freaks out the same way with 8 t-1s coming > > into it... > > > > Peter Slow, CCNP Voice Specialist > > Network Engineer > > Planetary Networks > > 535 West 34th Street > > New York, NY > > 10001 > > Cell:(516) 782.1535 > > Desk: (646) 792.2395 > > Mail: [EMAIL PROTECTED] > > Fax:(646) 792.2396 > > - Original Message - > > From: "Kiran Kumar M" > > To: > > Sent: Tuesday, May 29, 2001 4:19 PM > > Subject: Strange Problem with router... [7:6293] > > > > > > > Hi, > > > > > > I am facing a strange problem from last two days. One of my 3640 router > > > is behaving in a strange manner. > > > > > > Sudenly it is becoming 60 - 99 % CPU utilization.(Usally 20 - 30 %) at > the > > > same time It is droping the output packets on Main Serial link (which is > > > using for uplink/downlink) and input packets on fastethernet (Used for > > > LAN) port. Even these Interfaces are not overloading.. > > > > > > On the same router I am having 17 more serial links, and 1 more fast > > > ethernet, and one ethernet interfaces and all are in working. I am using > > > wccp v1, and BGP also on the same router. > > > > > > After Observing the problem I did the following things. > > > > > > 1) Increased the hold-queue to 4096 > > > 2) stopped the wccp > > > > > > and observed the status. But there is no use. It behaved in the same > > > pasion. So I kept the things back. > > > > > > I am wondering.. if anybody help me.. The traffic is same and not > > > varying.. but it is very much flutuating.. > > > > > > Please give me suggestions.. if anybody have any idea.. > > > > > > Thanks, > > > Kiran > > > > > > PS: The router is not giving this problem continuously.. for 2 mins.. its > > > working properly.. next 2 or 3 mins.. dropping the packets.. and next 2 > > > mins.. working properly.. > > > 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] FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=6472&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Strange Problem with router... [7:6293]
If you are running BGP on 3640 you are bound to have problems. Not that it wont work, but it wont be consistent. Are you running the complete BGP table? Are there any other stuff like NAT or debug running?. What is the memory you have on the router. Recommended router for BGP if you are running full BGP table is 7206 VXR. Gopal --- Kiran Kumar M wrote: > Hi Peter, > > Thanks for your mail. But I was using the same for > last 16 months, almost > with same setup. I never faced this problem. > > mtu is default, pps it can support upto 40,000 to > 70,000 (according to > cisco site), in my case it never reached to that > point.. > > Thanks, > Kiran > > On Tue, 29 May 2001, Peter I. Slow, CCNP Voice > Specialist wrote: > > > yup. > > thats going to happen when you plug that many > serial links into the 3640. > > look at the mtu, look at your pps, and look at the > 2640's forwarding > > capabilities. > > i have a cusdtomer who's 2640 freaks out the same > way with 8 t-1s coming > > into it... > > > > Peter Slow, CCNP Voice Specialist > > Network Engineer > > Planetary Networks > > 535 West 34th Street > > New York, NY > > 10001 > > Cell:(516) 782.1535 > > Desk: (646) 792.2395 > > Mail: [EMAIL PROTECTED] > > Fax:(646) 792.2396 > > - Original Message - > > From: "Kiran Kumar M" > > To: > > Sent: Tuesday, May 29, 2001 4:19 PM > > Subject: Strange Problem with router... [7:6293] > > > > > > > Hi, > > > > > > I am facing a strange problem from last two > days. One of my 3640 router > > > is behaving in a strange manner. > > > > > > Sudenly it is becoming 60 - 99 % CPU > utilization.(Usally 20 - 30 %) at > the > > > same time It is droping the output packets on > Main Serial link (which is > > > using for uplink/downlink) and input packets on > fastethernet (Used for > > > LAN) port. Even these Interfaces are not > overloading.. > > > > > > On the same router I am having 17 more serial > links, and 1 more fast > > > ethernet, and one ethernet interfaces and all > are in working. I am using > > > wccp v1, and BGP also on the same router. > > > > > > After Observing the problem I did the following > things. > > > > > > 1) Increased the hold-queue to 4096 > > > 2) stopped the wccp > > > > > > and observed the status. But there is no use. It > behaved in the same > > > pasion. So I kept the things back. > > > > > > I am wondering.. if anybody help me.. The > traffic is same and not > > > varying.. but it is very much flutuating.. > > > > > > Please give me suggestions.. if anybody have any > idea.. > > > > > > Thanks, > > > Kiran > > > > > > PS: The router is not giving this problem > continuously.. for 2 mins.. its > > > working properly.. next 2 or 3 mins.. dropping > the packets.. and next 2 > > > mins.. working properly.. > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations > to [EMAIL PROTECTED] [EMAIL PROTECTED] __ Do You Yahoo!? Send instant messages & get email alerts with Yahoo! Messenger. http://im.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=15898&t=6293 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
