I asked over at https://puck.nether.net/mailman/listinfo/arista-nsp a couple weeks ago, but didn’t get an answer, so I have moved to a larger group.
I understand that some Arista switches will expose each VLAN in SNMP so I can monitor traffic on a VLAN independently of over VLANs on that same physical interface. Some of them don’t.
Which ones do?
I prefer a solid used switch.
10G ports are fine.
You should be able to do that with Sflow, which they all/most support.
Also, this seems like standard Ifmib stuff, any snmp poller should be able to handle that, from a metrics perspective .
-Steve
I have not found x-flow to have the accuracy I would like. Either there’s a loss of information due to sampling and such low-usage interfaces (or VLANs in this case) are lost in the noise or there’s information overload due to no sampling at all.
I have seen very few platforms expose counter information about VLANs in the same way they do regular interfaces. Some Juniper platforms, Mikrotik, and I hear some Aristas as well.
I can confirm 7050X series do support this feature.We’re using 7050SX and 7050S, 7050S isn’t supported
https://www.arista.com/en/um-eos/eos-section-11-6-ethernet-configuration-commands#ww1310058
Am I reading correctly in that there has to be a layer 3 configuration on the VLAN for that to function?
Yes that’s required.
grumble