Users Guide

If a local-as is congured, BGP does not allow for the conguration of BGP confederation. Similarly, if BGP
confederation is congured, then BGP does not allow the conguration of local-as.
If the neighbor is an eBGP neighbor, then BGP performs a check on the rst AS number. In this scenario, it is
mandatory that the rst sequence in the AS path is of type AS_SEQUENCE or AS_CONFED_SEQUENCE (in the
case of confederations). If the rst entry appears as an AS_CONFED_SET and the neighbor is not in the local AS,
then this is strictly a problem with the neighbor node.
This command automatically restarts the BGP instance for the conguration to take eect.
Related Commands
• bgp four-octet-as-support — enable 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 congured.
Command Modes ROUTER BGP
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000–ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
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.
Border Gateway Protocol 403