bgp don't work anymore after ios upgrade on 7200

[cnicules]

i upgraded a cisco 7206VXR (NPE400) from c7200-js-mz.121-5.T15 to c7200-ik9o3s-mz.12.3-6a, and my bgp got up, received routes, but advertise none, i was in "no auto-summary" and i passed in "auto-summary" and i begin to advertise.

My question is why did it change the behaviour betwen 12.1T and 12.3???

i advertise and route a class B

my config follows

router bgp 65026

no synchronization

bgp log-neighbor-changes

network 1.1.0.0

neighbor x.x.x.x remote-as xxxx

neighbor x.x.x.x soft-reconfiguration inbound

[Georg Pauwen]

Hello,

starting at IOS version 12.2(8)T, the command default behavior changed to disabled (no auto-summary).

I guess it was changed because, although route summarization reduces the amount of routing information in the routing tables, it might not be desirable if you want to have explicit specfic routes instead...

HTH,

Georg