Re: [c-nsp] giant packets troubleshooting
Just to be aware, there has been a cosmetic bug on many cisco platforms two years ago that clasified all dot1q trunked frame as giants. The way to see verify this is by looking whether you don't see giants on all trunk ports. Pavel On Tue, Jul 15, 2008 at 7:56 AM, Michalis Palis [EMAIL PROTECTED] wrote: Hello all I have some interfaces on my networks (gigabit / ethernet) which report a huge amount of giant packets. What is the cause of giant packets? Is their any methodology or any good document which details the way to troubleshoot giant packets? All responses will be appreciated. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] giant packets troubleshooting
On one link for example where we have an etherchannel between a GSR and a 4510 switch, we see a lot of giant packets on the router side and no giant packets on the switch side - Original Message - From: Pavel Skovajsa [EMAIL PROTECTED] To: Michalis Palis [EMAIL PROTECTED] Cc: cisco-nsp@puck.nether.net Sent: Tuesday, July 15, 2008 9:09 AM Subject: Re: [c-nsp] giant packets troubleshooting Just to be aware, there has been a cosmetic bug on many cisco platforms two years ago that clasified all dot1q trunked frame as giants. The way to see verify this is by looking whether you don't see giants on all trunk ports. Pavel On Tue, Jul 15, 2008 at 7:56 AM, Michalis Palis [EMAIL PROTECTED] wrote: Hello all I have some interfaces on my networks (gigabit / ethernet) which report a huge amount of giant packets. What is the cause of giant packets? Is their any methodology or any good document which details the way to troubleshoot giant packets? All responses will be appreciated. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] giant packets troubleshooting
Dear Palis check interface MTU configuration and its default state from both sides best regards --Ibrahim On Tue, Jul 15, 2008 at 9:22 AM, Michalis Palis [EMAIL PROTECTED] wrote: On one link for example where we have an etherchannel between a GSR and a 4510 switch, we see a lot of giant packets on the router side and no giant packets on the switch side - Original Message - From: Pavel Skovajsa [EMAIL PROTECTED] To: Michalis Palis [EMAIL PROTECTED] Cc: cisco-nsp@puck.nether.net Sent: Tuesday, July 15, 2008 9:09 AM Subject: Re: [c-nsp] giant packets troubleshooting Just to be aware, there has been a cosmetic bug on many cisco platforms two years ago that clasified all dot1q trunked frame as giants. The way to see verify this is by looking whether you don't see giants on all trunk ports. Pavel On Tue, Jul 15, 2008 at 7:56 AM, Michalis Palis [EMAIL PROTECTED] wrote: Hello all I have some interfaces on my networks (gigabit / ethernet) which report a huge amount of giant packets. What is the cause of giant packets? Is their any methodology or any good document which details the way to troubleshoot giant packets? All responses will be appreciated. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] giant packets troubleshooting
if you have high mtu such as 9180 on that interface, and packets exceed 1500, counters will increment On Tue, Jul 15, 2008 at 1:56 AM, Michalis Palis [EMAIL PROTECTED] wrote: Hello all I have some interfaces on my networks (gigabit / ethernet) which report a huge amount of giant packets. What is the cause of giant packets? Is their any methodology or any good document which details the way to troubleshoot giant packets? All responses will be appreciated. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ -- ^christian$ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] giant packets troubleshooting
Hello all I have some interfaces on my networks (gigabit / ethernet) which report a huge amount of giant packets. What is the cause of giant packets? Is their any methodology or any good document which details the way to troubleshoot giant packets? All responses will be appreciated. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
