The last month or so we have had some issues with our 7200. All the
protocols(LDP,OSPF,sometimes BGP) appear to bounce with dead timers
and the CPU goes up to 100%, weird thing is that it happens during off-
peak hours (Sunday, early morning weekdays).
We are mainly a voice provider with some internet. The router has 4
channelized DS-3s to the DS1 level fully populated and 2 fastethernet
uplinks. The fastethernet uplinks show a number of drops with
the two fast ethernet interfaces (counters were cleared about a day
Input queue: 0/150/28287142/77 (size/max/drops/flushes); Total output
Input queue: 0/150/987356/1703 (size/max/drops/flushes); Total
output drops: 0
xxxx-xxx#show cef drop
CEF Drop Statistics
Slot Encap_fail Unresolved Unsupported No_route No_adj
RP 320263 715965 0 88929869
xxxx-xxxxf#show cef not-cef-switched
CEF Packets passed on to next switching layer
Slot No_adj No_encap Unsupp'ted Redirect Receive Options
RP 81 0 0 20 1182639 0
At first we thought it was an OSPF issue and LDP, BGP were just
bouncing because they didn't have route resolution since the routes
were not there, but I am pretty sure the protocols bouncing is a bi-
product of something else.
We also have other 7200s with similar load and same version have no problems at all.
Any help will be appreciated.