CCNP Routing and Switching ROUTE 300-101 Official Cert Guide

Viewing Subsets of the BGP Table

When accepting full or partial BGP updates, the sheer number of BGP table entries can be much too large for the show ip bgp command to be useful. The command could list thousands, or even hundreds of thousands, of prefixes. In practice, you need to be comfortable with a variety of options on the show ip bgp command, each listing a different part of the BGP table.

For example, you will likely want to look at BGP table entries for specific prefixes, including the default route prefix of 0.0.0.0/0. Additionally, you might want to see routes per neighbor, and see which routes were heard from that neighbor—and which of those routes passed through any inbound route filters to make it into the BGP table. Finally, to ...