[j-nsp] NSR, multicast, and VRFs?

[Pekka Savola]

On Mon, 5 May 2008, Dave Diller wrote:
> Nonstop routing is supported for the following protocols:
>     * Border Gateway Protocol (BGP)
...
> Now, 9.1 says:
>
> Border Gateway Protocol (BGP), for unicast IPv4 and IPv6 address
> families only. If you configure any other address family, the BGP
> session will not come up on the backup router.

This text is probably inaccurate.  At least previously if you have 
MP-BGP w/ multicast enabled, when doing NSR manually (mastership 
switch) the BGP sessions would reset similarly as if NSR wasn't 
enabled at all (which is something different from "will not come up").

I guess this persists in 9.1 as well (not tested).  We've a case open 
asking clarification on this but haven't heard back in a while.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings