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Is there a command to check the incoming DSCP value entering the switch?


Any command to check the incoming DSCP value entering the switch in ExtremeXOS version 16.1.3.6?

3 replies

Userlevel 6
There is no command to do that. I would suggest to enable diffserv examinition, configure every codepoint to match the right QP (qosprofile) and see which qosprofiles are hit using 'show qosprofile '.
Userlevel 4
i also suggest using wireshark (free) and set a basic filter such as
ip.addr == (ipaddress of the pc reviewing)
maybe set up a port mirror to capture the packets for review
Userlevel 6
There is no CLI to check the incoming DSCP value.

The best way is to mirror ingressing packets and analyze them through the wireshark.

Articles about mirroring:

https://gtacknowledge.extremenetworks.com/articles/How_To/How-To-Enable-And-Configure-Mirroring-In-E...

https://gtacknowledge.extremenetworks.com/articles/How_To/How-To-Mirror-Specific-Type-of-Traffic

You can check if the packets are egressing in the correct queue with the command below:

show ports qosmonitor

Article about QoS:

https://gtacknowledge.extremenetworks.com/articles/How_To/Configuring-QOS-profiles-and-verify-QOS-is...

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