Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

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neighbor update-source

Enable the E-Series software to use Loopback interfaces for TCP connections for BGP sessions.

Syntax
neighbor {ip-address | peer-group-name} update-source interface

To use the closest interface, use the no neighbor {ip-address | peer-group-name} update-source interface command.

Parameters
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 disable all routers within the peer group.
interface
Enter the keyword loopback then a number of the Loopback interface. The range is from 0 to 16383.
Defaults
Not configured.
Command Modes
ROUTER BGP
Command History

This guide is platform-specific. 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.
9.10(0.0)
Introduced on the S6100-ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100–ON.
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.
7.7.1.0
Introduced on the C-Series.
Usage Information
Loopback interfaces are up constantly and the BGP session may need one interface constantly up to stabilize the session. The neighbor update-source command is not necessary for directly connected internal BGP sessions.

Neighbors are sorted according to the source and destination ip addresses. If an update-source ip address exists, then the source ip address determines the order in which the neighbors are displayed.


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