07-02-2024 12:33 PM
Dear friends,
I hope anyone can help with this issue:
I need to capture the packet traffic for one of the interfaces of a 2960 using the EPC utility. The switch has the following hardware / software: WS-C2960CX-8TC-L, 15.2(4)E6, C2960CX-UNIVERSALK9-M
Searching for the information and as I can see the command interface, I have been following the configuration instruction at:
As indicated in the documentation, in order to capture the traffic for a specific interface, I used the IP CEF option for the point capture configuration.
The problem is when I start the capture and check the buffer dump, I realize no packets is captured. Of course I have tried with other connected interfaces and also using the VLAN associated, but the result is the same: no packets are captures at all.
After this result, I have been checking information about CEF configuration and as I can see, I understand CEF shoukd be enabled for the interface I required to capture packets. Then I have been checked following the documentation:
And as I can see the problem could be that the CEF is no enabled neither the particular interface or the VLAN as showed:
After this I have been trying to enable CEF for the interface, following the instructions, but the commands dont work. Also when I tried for the VLAN command is accepted but the disable state does not change.
I guess I need to make further adjustments or maybe the switch software does not allow to enable CEF.
I hope someone can give me some clues to reach a solution for this problem.
Thank you very much for your help.
07-02-2024 12:55 PM
enable disable CEF effect debug not EPC
you can debug traffic no need to EPC except you have high CPU utilize
MHM
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