Monitoring BGP

This chapter describes the commands you can use to monitor and troubleshoot Border Gateway Protocol (BGP) on E Series routers.

Note: The E120 router and E320 router output for monitor and show commands is identical to output from other E Series routers, except that the E120 and E320 router output also includes information about the adapter identifier in the interface specifier (slot/adapter/port).

This chapter contains the following sections:

Setting a Baseline on All BGP Statistics
Enabling Display of BGP Logs
Setting the Default Output Fields While Displaying Summarized Status of BGP Neighbors
Setting the Default BGP Routing Table Output Fields
Monitoring the AS-Path Access Lists for IP
Monitoring the BGP Routing Table
Monitoring Advertised BGP Routes
Monitoring BGP Aggregate Addresses
Monitoring BGP Routes with Nonnatural Network Masks
Monitoring BGP Routes in a Community
Monitoring BGP Community Routes in the Community List
Monitoring Dampened BGP Routes
Monitoring BGP Routes with Matching AS Paths and AS-Path Access Lists
Monitoring BGP Flap Statistics
Monitoring BGP Routes with Inconsistent AS Paths
Monitoring BGP Neighbors
Monitoring Dampened BGP Routes of Specified Neighbors
Monitoring BGP Paths of Neighbors
Monitoring Prefix List Outbound Route Filters Received from the BGP Neighbor
Monitoring Routes Originating from a BGP Neighbor Before Application of Inbound Policy
Monitoring Routes Originating from a BGP Neighbor After Application of Inbound Policy
Monitoring Networks in an Autonomous System
Monitoring BGP Next Hops
Monitoring BGP Paths
Monitoring BGP Peer Groups
Monitoring BGP Routes with Matching AS Paths and Regular Expressions for Single Regular Expressions
Monitoring BGP Routes with Matching AS Paths and Regular Expressions for Multiple Regular Expressions
Monitoring the Status of All BGP Neighbors
Monitoring the Routes Permitted by IP Community Lists
Disabling Display of BGP Logs