05-14-2024 12:01 AM
Hi dear community,
According to you, what is the best way to capture MPLS traffic flowing between two ISR ?
Does EPC provide a way to do so from the router itself ?
Does a switch in between, with port mirroring enabled, mandatory ?
Best Regards,
Jerems
05-14-2024 12:26 AM - edited 05-14-2024 12:32 AM
Port mirror not need embedded packet capture'
The command list "mirror" but that not meaning port mirror.
Do EPC and I will check my notes about other way to capture mpls without using wireshark.
Can I know what is ISR platform you have excatly
MHM
05-14-2024 12:39 AM
I know that Port mirror is not mandatory as ECP is a different embedded feature on Cisco ISR. Anyway, It looks like ECP only works with IPv4/v6 payload.
My post aimed to mention the different ways to capture MPLS packets . First one could be ECP and the second one is to perform a simple port mirroring (from a switch connected to the ISR "targeted interface".
05-14-2024 12:46 AM
Ok understood.
You can use
Debug platfrom packet-tracer enable
Debug platform condition mpls <> ingress/egress
I think this also help you to detect mpls packet.
MHM
05-14-2024 12:49 AM
I will give it a try tonight with these interesting commands.
Thanks a lot @MHM Cisco World !
05-14-2024 12:51 AM - edited 05-14-2024 12:53 AM
You are so so welcome
More info about this feature
MHM
05-14-2024 12:47 AM
I'm talking about ISR 111X series
05-14-2024 12:28 AM
Yes, you should be able to achieve this with EPC. You can find instructions as to how to perform EPC here: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/epc/configuration/xe-16-6/epc-xe-16-6-book.pdf
05-14-2024 12:40 AM
Not sure if EPC works with Ethernet frames that transports IPv4/IPv6 payload only.
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