[c-nsp] IS-IS as PE-CE protocol

[adamv0025 at netconsultings.com]

> Victor Sudakov
> Sent: Thursday, March 21, 2019 2:30 AM
> 
> Dear Colleagues,
> 
> OSPF as a PE-CE protocol has some useful features: the "DN bit" for loop
> prevention and sham links for route optimization.
> 
> Does IS-IS have similar features?
> 
It does if the PE end is L2 and CE end is L1, but for the love of god why
would you want to shoot yourself in the foot?

adam