[c-nsp] L2PT on Trunk Ports

[Dan Armstrong]

Has anybody worked extensively with L2PT on Trunk ports on Cisco's ME 
platforms?

The documentation on their site is weak...

This may seem like a dumb question, but is L2PT "vlan aware" on a trunk 
port?  (yes, I realize how dumb that sounds)


Specifically, with per vlan spanning tree, (or rstp, or mst)  would it 
'broadcast' the stp packets received from say, vlan 10 on a trunk to all 
other vlan 10s on trunk ports? and keep them separate from other VLANs?  
Is there such a thing as per VLAN CDP?!  I thought CDP was pretty 
primitive and couldn't really be vlan aware, so how does that get 
tunneled across a trunk?  On all VLANs?  Just One?  Which one? 

What if I have a dozen remote access ports all tunneling cdp (or not per 
vlan stp?) back to a single trunk - which cdp do we believe?  Which stp 
do we believe?  What if some of these remote sites are running old not 
per vlan spanning tree, and some are?