CLI Guide

neighbor update-source
Enable the software to use Loopback interfaces for TCP connections for BGP sessions.
Syntax
neighbor {ipv6-address | peer-group-name} update-source
loopback interface
To use the closest interface, use the no neighbor {ipv6-address | peer-
group-name} update-source loopback interface command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal
fields of zeros.
peer-group-name Enter the name of the peer group to set the timers for all
routers within the peer group.
loopback
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
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
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.
neighbor weight
Assign a weight to the neighbor connection, which is used to determine the best path.
Syntax
neighbor {ipv6-address | peer-group-name} weight weight
To remove a weight value, use the no neighbor {ipv6-address | peer-
group-name} weight weight command.
Parameters
ipv6-address Enter the IPv6 address in the x:x:x:x::x format.
NOTE: The :: notation specifies successive hexadecimal
fields of zeros.
IPv6 Border Gateway Protocol (IPv6 BGP)
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