On Sun, 23 May 2010, Brandon Applegate wrote:
We have some asr1k's running full ipv4 BGP (couple of carriers EBGP - IBGP to
our core). As soon as I added a seq to a route-map that is attached to an
EBGP neighbor, about 10 seconds later the router crashed hard. This neighbor
was up at the time.
After the router came back, I shut the neighbor, edited route-maps and
brought the neighbor back. This worked as expect - and crash-free.
We are running asr1000rp1-advipservicesk9.02.04.01.122-33.XND1.bin. Before I
run off to cisco.com to search bugs / open TAC case, I wanted to post this to
see if anyone else has seen this happen in the real world.
Needless to say this sucks pretty bad, as it precludes me from making any
kind of routing policy tweaks on the fly (i.e. business day) with any
confidence.
Thanks in advance for any info. If I find something out from Cisco I will
self-reply for posterity.
This is a known bug:
---
CSCsz23108 Bug Details
Applying BGP soft-configuration router crashes after 300k prefixes
Symptom:
When applying soft-configuration inbound to IPv4 family within BGP. The
router can crash after receiving 300,000 prefixes. If the
soft-configuration is not present, the router is stable.
---
The short answer is that we need to turn off soft-reconfig in our network.
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