[j-nsp] Extended virtual ports in Virtual chassis

[Chuck Anderson]

On Mon, Oct 18, 2010 at 04:31:59PM +0400, Muhammad Rehan wrote:
> 2) vcp-255/1/0.32768
> 
> now i am unable to understand this 255 which is replaced by 0 (
> xe-0/1/0----> vcp-255/1/0 ) and secondly what is purpose of
> VCP-255/1/0.32768  ????

Logical units 32768 are automatically created on most interfaces as a 
way for JUNOS to run control protocols like Spanning Tree, LACP, etc.  
In the case of VCP ports, the IS-IS routing protocol is run which you 
can see with "show virtual-chassis protocol ..." commands.