Service Manual
Command Modes ROUTER BGP
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
To accept 4-byte formats before entering a 4-byte AS number, configure your system. All the routers in the
Confederation must be 4 byte or 2 byte identified routers. You cannot mix them.
The autonomous systems configured in this command are 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. The software sends
AS_CONFED_SET and accepts AS_CONFED_SET and AS_CONF_SEQ.
Related Commands
bgp four-octet-as-support — enables 4-byte support for the BGP process.
bgp confederation peers
Specify the autonomous systems (ASs) that belong to the BGP confederation.
Syntax
bgp confederation peers as-number [...as-number]
To return to the default, use the no bgp confederation peers command.
Parameters
as-number Enter the AS number. The range is from 0 to 65535 (2 byte), from 1 to 4294967295 (4
byte), or from 0.1 to 65535.65535 (dotted format).
...as-number (OPTIONAL) Enter up to 16 confederation numbers. The range is from 0 to 65535 (2
byte), from 1 to 4294967295 (4 byte), or from 0.1 to 65535.65535 (dotted format).
Defaults Not configured.
Command Modes ROUTER BGP
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
All the routers in the Confederation must be 4 byte or 2 byte identified routers. You cannot mix them.
The autonomous systems configured in this command are visible to the EBGP neighbors. Each autonomous
system is fully meshed and contains a few connections to other autonomous systems.
After specifying autonomous systems numbers for the BGP confederation, recycle the peers to update their
configuration.
Related Commands
bgp confederation identifier — configures a confederation ID.
284 Border Gateway Protocol IPv4 (BGPv4)