[j-nsp] Aggregated Eth interface in L2VPN

[David Ball]

  I have 2 Gig links on different PICs added to an 802.3ad agg
ethernet bundle for a customer.  They're an L2VPN customer so we're
not maintaining MAC tables.  While they claim to have a Nortel switch
on their side with plenty of individual MACs behind it, we're still
only sending traffic to them over 1 of the 2 links in the bundle (ie.
0bytes over the other link).  I've been unable to find detailed
information on exactly how the hashing is done for such a setup, and
wondered if anyone here could shed some light or could provide insight
as to how else I could investigate what MACs we're seeing from them
(which I didn't think was possible for l2vpns).  I believe it's done
based on src and dest MAC, but am unsure how.  The other side of the
L2VPN is another 2 x 1Gig agg bundle, again with a customer switch
with lots of MACs behind it.

David