OS10 Enterprise Edition User Guide Release



Configures an identifier for a BGP confederation.

confederation {identifier as-num | peers as-number}
  • identifier as-num —Enter an AS number, from 0 to 65535 for 2 bytes, 1 to 4294967295 for 4 bytes, or 0.1 to 65535.65535 for dotted format.
  • peers as-number —Enter an AS number for peers in the BGP confederation, from 1 to 4294967295.
Not configured
Command Mode
Usage Information

Configure your system to accept 4-byte formats before entering a 4-byte AS number. All routers in the Confederation must be 4-byte or 2-byte identified routers. You cannot have a mix of 2-byte and 4-byte identified routers. The autonomous system number you configure in this command is visible to the EBGP neighbors. Each autonomous system is fully meshed and contains a few connections to other autonomous systems. The next-hop (MED) and local preference information is preserved throughout the confederation. The system accepts confederation EBGP peers without a LOCAL_PREF attribute. OS10 sends AS_CONFED_SET and accepts AS_CONFED_SET and AS_CONF_SEQ. The no version of this command deletes the confederation configuration.

  • NOTE: To configure these settings for a non default VRF instance, you must first enter the ROUTER-CONFIG-VRF sub mode using the following commands:
    1. Enter the ROUTER BGP mode using the router bgp as-number command.
    2. From the ROUTER BGP mode, enter the ROUTER BGP VRF mode using the vrf vrf-name command.
Example (Identifier)
OS10(conf-router-bgp-2)# confederation identifier 1
Example (Peers)
OS10(conf-router-bgp-2)# confederation peers 2
Supported Releases
10.3.0E or later

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