Administrator Guide

Command Modes ROUTER BGP
Command History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series. Added support for the 4-byte format
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.
C9000 Series
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
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.9(0.0) Introduced on the C9010.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
322 Border Gateway Protocol