03-27-2019 04:47 AM
Hi
since some days we observe high cpu for the "ARP Snoop" process.
This is on 6513-E coreswitches running VSS.
I can not find information about tshooting this process.
If anyone has a clue, thanks in advance!
03-27-2019 06:36 AM
Can you provide the environment information :
1. what kind of supervisior - show modules
2. what is the current IOS running - show version
3. what was the major change before you noticed this issue.
4. can you provide -
show process status
show process
Show process CPU sorted | ex 0.0
Show process cpu history
here is arp related issue community post :
https://community.cisco.com/t5/switching/6509e-vss-high-cpu-process-due-to-arp-input/td-p/1819465
here is troubleshooting guide if you are not visited already
https://supportforums.cisco.com/document/59926/troubleshooting-high-cpu-6500-sup720
03-28-2019 12:38 AM
Hi thanks!
i already figured it out and solved the issue.
03-28-2019 03:27 AM
If the issue is resolved can you post the solution and mark as this post as solved, so it will be usefull for other community members who has same issue.
10-02-2019 09:38 AM
10-02-2019 11:31 PM
It turned out that an old 3750X stack was acting strange and whatever i tried, all traffic from the stack was punted to the 6513 cpu
- so i shut down all access ports on the stack > still same behaviour, high cpu on the core
- then i shut down a member of the port channel uplink, so the stack only had one link to the core and all access ports also were still shut > same behaviour, high cpu
I then upgraded the stack to c3750e-universalk9-mz.152-4.E8.bin and the issue went away.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide