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Example: Configuring the BGP Monitoring Protocol

Requirements

• Configure the router interfaces.
• Configure an interior gateway protocol (IGP).
• Configure BGP and routing policies.
• Configure a monitoring station to listen on a particular TCP port.

Overview

To configure the monitoring station to which BMP data is sent, you must configure both the station-address and station-port statements. For the station address, you can specify either the IP address or the name of the monitoring station. For name, specify a valid URL. For the station port, specify a TCP port. BMP operates over TCP. The monitoring station is configured to listen on a particular TCP port, and the router is configured to establish an active connection to that port and to send messages on that TCP connection. You configure BMP in the default routing instance only. However, BMP applies to routes in the default routing instance and to routes in other routing instances.

You can optionally specify how often to send data to the monitoring station. The default is 1 hour. To modify this interval, include the statistics-timeout seconds statement. For seconds, you can specify a value from 15 through 65,535. By default, the routing device stops collecting BMP data when it exceeds a threshold of 10 MB. You can modify the value of this threshold by including the memory-limit bytes statement. For bytes, specify a value from 1,048,576 to 52,428,800. If the routing device stops collecting BMP data after exceeding the configured memory threshold, the router waits 10 minutes before attempting to resume the BMP session.

Figure 1 shows a sample topology. In this example, BMP is configured on Router PE1. The server address is 192.168.64.180. The listening TCP port on the server is port 11019.

Figure 1: BMP Topology

Configuration

CLI Quick Configuration

To quickly configure this example, copy the following commands, paste them into a text file, remove any line breaks, change any details necessary to match your network configuration, and then copy and paste the commands into the CLI at the [edit] hierarchy level.

Step-by-Step Procedure

1. Configure the receiving station address.

   [edit routing-options]user@PE1# set bmp station-address 192.168.64.180

2. Configure the receiving station port.

   [edit routing-options]user@PE1# set bmp station-port 11019

Results

From configuration mode, confirm your configuration by entering the show routing-options command. If the output does not display the intended configuration, repeat the instructions in this example to correct the configuration.

Verification

Verifying That BMP is Operating

Purpose

Run the show bgp bmp command to display a set of statistics and the current BMP session state on the router.

Action

  BMP station address/port: 192.168.64.180+11019
  BMP session state: DOWN
  Memory consumed by BMP: 0
  Statistics timeout: 15
  Memory limit: 10485760
  Memory connect retry timeout: 600