Deployment Guide

372 | Border Gateway Protocol IPv4 (BGPv4)
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neighbor sender-side-loopdetect
c
Enables sender-side loop detection for BGP.
Syntax
neighbor {ip-address | peer-group-name} sender-side-loopdetect
To disable sender-side loop detection, use the no neighbor {ip-address | peer-group-name}
sender-side-loopdetect command.
Parameters
Defaults
Enabled.
Command Modes
ROUTER BGP
Command
History
Usage
Information
This command enables sender-side-loopdetect for a specified BGP neighbor. BGP does not advertise a
route to a peer if the AS-Path of the route already contains the peer's AS.
Related
Commands
neighbor send-community
c e s
Send a COMMUNITY attribute to a BGP neighbor or peer group. A COMMUNITY attribute indicates
that all routes with that attribute belong to the same community grouping.
Syntax
neighbor {ip-address | peer-group-name} send-community
To disable sending a COMMUNITY attribute, use the no neighbor {ip-address |
peer-group-name} send-community command.
Parameters
Defaults
Not configured and COMMUNITY attributes are not sent to neighbors.
Command Modes
ROUTER BGP
Usage
Information
To configure a COMMUNITY attribute, use the set community command in the ROUTE-MAP mode.
ip-address
Enter the IP address of the neighbor in dotted decimal format.
peer-group-name
Enter the name of the peer group.
All routers in the peer group receive routes from a route reflector.
Version 8.4.7.0 Introduced support on the C-Series.
Note: If you configure a neighbor to accept such routes using the neighbor allowas-in
command, you must disable sender-side loop detection for that neighbor.
bgp client-to-client reflection Enable route reflection between route reflector and clients.
ip-address
Enter the IP address of the peer router in dotted decimal format.
peer-group-name
Enter the name of the peer group to send a COMMUNITY attribute to all
routers within the peer group.