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CCNP Routing and Switching ROUTE 300-101: Official Cert Guide by Kevin Wallace

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Displaying the Results of BGP Filtering

To verify and troubleshoot filtering configurations, you need to see both the results before and after the filter. Cisco IOS provides several show commands that allow you to do exactly that. For example, Example 14-10 shows several cases of the show ip bgp neighbor advertised-routes command that shows the post-filter BGP Updates sent by a router. Figure 14-8 summarizes these commands, showing how they can be used to display the pre- and post-filter BGP table contents. The figure shows Router E1, with inbound filtering for Updates received from Router I3-1 and outbound filtering of BGP Updates sent to Router I1-1.

Figure 14-8 show Commands Related to BGP Filtering

The commands for displaying inbound ...

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