"Interval during which holdtime for an adjacency with a recently
restarted router will NOT be refreshed based on holdtime in IIH-RR"
The default value is 5 minutes.
What this means is that if "nsf ietf" is configured on a neighbor, we
will help them by maintaining an existing adjacency across a restart the
first time they restart. If they restart again within the skeptical
timer interval, we will ignore the holdtime advertised in any IIH-RR -
which will allow any existing adjacency to time out. This will result in
loss of connectivity to the restarting router and cause other routers in
the network to NOT use that router for transit traffic.
