[ixpmanager] sflow not visible with Arista Reseller Ports

[Nick Hilliard]

Dominik Bay wrote on 11/10/2021 10:45:
> When I check the sflow pcap, I only see sflow.flow_sample.index ==
> ifIndex of the parent interface. Only in sflow_245.vlan.in /
> sflow_245.vlan.out I see the VLAN of the reseller port.
> 
> So I guess there's some matching going wrong in the IXPM sflow
> collector? Or did I miss an Arista setting?

Arista is basically doing the right thing.  But at the moment, IXP-M 
doesn't properly support resellers via breakout trunk ports.  Apart from 
some UI stuff, there are a couple of DB schema enhancements that it 
needs, which we didn't want to go near until the Doctrine->Eloquent 
migration was complete.  When this code is written, we'll have the 
capability to specify per customer vlans, which will allow the sflow 
collection tool to map these flows properly.

Nick