topic Re: capture and view interface traffic locally - or best practices to achieve similiar in ExtremeSwitching (VSP/Fabric Engine)

capture and view interface traffic locally - or best practices to achieve similiar

Raffael — Fri, 18 Jul 2025 11:39:21 GMT

i'd like to know if there is a similiar simple way on a voss switch to capture traffic on the box itself from a port with a circular/linear buffer, a la cisco...

monitor caputre buffer BUF size 2048 max-size 1518 circular
"maybe add some ACL to pre-filter the incoming/outgoing pkts"
monitor capture start BUF
monitor capture stop BUF
show monitor capture BUF

i always appreciated this option on the catalyst series

Re: capture and view interface traffic locally - or best practices to achieve similiar

Brent_Addis — Fri, 18 Jul 2025 21:56:54 GMT

You mean like a tcpdump?

Voss or XOS?

XOS:
https://extreme-networks.my.site.com/ExtrArticleDetail?an=000082238

Voss:

Never done it, but this seems likely:
https://extreme-networks.my.site.com/ExtrArticleDetail?an=000102983

Re: capture and view interface traffic locally - or best practices to achieve similiar

Brent_Addis — Fri, 18 Jul 2025 22:23:18 GMT

OOH just noticed you did say VOSS sorry, I use Voss a lot but haven't actually needed to do it.

Re: capture and view interface traffic locally - or best practices to achieve similiar

Raffael — Tue, 12 Aug 2025 06:06:44 GMT

Hi Brent

thanks for your reply.

yes - like a tcpdump. less featureset would be ok. just like on the catalysts. inline minimal viewing posiibility. full dump when donwloaded from the switch.

The TPVM would be a possible alternative. since we use both platforms, 7400&4900.

but i would need to install the SSD VIMs onto the switches were i want to capture, right?

i think i also need to spend some time on reading about i-sid mirroring 🙂