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Dell EMC SmartFabric OS10 User Guide Release 10.5.0

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confederation

Configures an identifier for a BGP confederation.

Syntax
confederation {identifier as-num | peers as-number}
Parameters
  • 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.
Default
Not configured
Command Mode
ROUTER-BGP
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 that 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 nondefault 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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