BGP Routing Policies Effectiveness

[turbo_engine26]

Hello,

I've noticed that in order for a routing policy to take effect, the bgp peer connection must be cleared first. This is not practical of course in production environment. For example, using route maps to filter a specific NLRI or to set community attributes or even a simple distribute list doesn't take effect at all unless i clear bgp peer connection.

Also, please note that after a routing policy configuration, i waited for about 5 minutes (very long time indeed) to see the effectiveness of the policy but nothing happened until i cleared the peer.

Is this the normal IOS behavior for BGP?

Regards,

A.M.

[Jon Marshall · Accepted solution]

It is normal to have tell the router to do something but you shouldn't need to reset the connection. Instead do this -

clear ip bgp soft out

this instructs the router to send the new routing information to the BGP neighbor without having to reset the connection. Full details -

http://www.cisco.com/en/US/products/ps6599/products_data_sheet09186a0080087b3a.html

Jon

[turbo_engine26]

I really thank you for such a fast response.

Yes, it is working now but i wonder why the book didn't mention that yet.

Thx

HTH

A.M.