Cisco IOS in a Nutshell, 2nd Edition

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Name

neighbor update-source — router, BGP

Synopsis

neighbor {address | peer-group} update-source interface
no neighbor {address | peer-group} update-source interface

Configures

Best interface to reach a neighbor

Default

The closest interface (sometimes called the best local address)

Description

This command tells the router to use a certain interface for a neighbor (as specified by address or peer-group) rather than the default. Use this command when other routers are peering to your loopback address.

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