Setting the BGP Identifier

By default, the router ID of the router is used as the BGP identifier. You can use the bgp router-id command to configure an IP address as the BGP identifier.

bgp router-id

• Use to configure an IP address as the BGP identifier.
• Example

  host1(config-router)#bgp router-id 10.25.1.1

• The new BGP identifier is used in open messages sent after you issue the command. To use the new BGP identifier for sessions already in the established state, you must use the clear ip bgp command to perform a hard clear.
• Use the no version to restore the router ID as the BGP identifier.
• See bgp router-id

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