8-34. neighbor {ip-address | peer-group-name} version version-number
Syntax Description:
ip-address— Neighbor's IP address.
peer-group-name— Name of the peer group. See section 8-19.
version-number— 2, 3, or 4.
Purpose: Currently, the default BGP version number is 4. Cisco's implementation of BGP begins using version 4 and negotiates down to version 2. If you do not want to form a neighbor connection with a router that is not running version 4, you can lock down the version number using this command.
Cisco IOS Software Release: 10.0. Peer group support was added in Release 11.0.
Configuration Example: Locking Down the Neighbor BGP Version
The following configuration locks down the version number with one neighbor to 4 and leaves the version number ...
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