[ixpmanager] Port specific VLANs

[Barry O'Donovan]

Hi Joe,

> Just playing with sFlow in IXP Manager and as I have a bunch of peers
> that use port specific VLAN tags for peering it appears that it is
> ignoring the flows.
>
> For example IXP VLAN is say 60, but Peer1 has it translated to 555.
> Is there support for this as I can’t seem to find anywhere I can
> specify the tag on a per peer basis?


It supports VLAN tags for the peering LANs and also for private peering 
VLANs (so members with private VLANs can see their p2p traffic also).


We don't do VLAN translation at the edge so we've never had to support 
this. To actually support it would be a fairly major undertaking as it 
would require a review and change to a lot of code in a lot of places I 
suspect.

You should be able to work around it by translating the VLAN yourself at 
this point in the code:

http://git.io/ry1yxw

If you have a second script that generates and maintains your member 
VLAN mappings which outputs that as a Perl hash, you can include it in 
the p2p file referenced above and then translate the vlan ID in the 
sflow packet (using your example) from 555 to 60.

  - Barry