[c-nsp] IPv6 and ISIS on GSR

[Pete Templin]

List,

We're beginning our IPv6 deployment, and running into some surprises 
already.  I've taken a GSR out of the forwarding path and successfully 
applied some IPv6 addresses to its interfaces.  However, as soon as I 
put "ipv6 router isis" on any interface, my v4 isis adjacencies drop 
within the dead interval and the router "falls off the network". 
Removing the command(s) brings the router back into happy adjacencies.

My first hunch was that it was a condition of the single topology, so I 
then tried applying the 'ipv6 router isis' to all interfaces that had 
'ip router isis' on them...still no success.

Any thoughts on what I'm doing wrong?  12.0(32)S8 on a 12008.

Thanks,

Pete