[nsp] NSF and 7206

[James Edwards]

I am trying to understand how NSF works on a 7206. I found this:

The Cisco 7200 is a single-route processor system and cannot maintain
its forwarding table in the event of a route processor failure. It
cannot perform nonstop forwarding of packets. However, it supports the
NSF protocol extensions for BGP, OSPF, and ISIS. Therefore, it can peer
with NSF-capable routers and facilitate the resynchronization of routing
information with such routers.

So in BGP, if I drop a BGP session, the routes (from this session) do
not get marked stale, they are withdrawn. So graceful restart is of no
benefit, as routes are never marked stale. Have I got that correct ?

The part I am not getting is "facilitate the resynchronization". What is
happening here ?

-- 
James H. Edwards
Routing and Security
At the Santa Fe Office: Internet at Cyber Mesa  
jamesh at cybermesa.com
noc at cybermesa.com
-- 
James H. Edwards
Routing and Security Administrator
At the Santa Fe Office: Internet at Cyber Mesa  
jamesh at cybermesa.com
noc at cybermesa.com
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