C613-50100-01 REV C Command Reference for x930 Series 1350
AlliedWare Plus™ Operating System - Version 5.4.6-1.x
BGP AND BGP4+ COMMANDS
NEIGHBOR
UPDATE-SOURCE
neighbor update-source
Overview Use this command to specify the source IPv4 or IPv6 address of BGP or BGP4+
packets, which are sent to the neighbor for routing updates, as the IPv4 or IPv6
address configured on the specified interface. The specified interface is usually the
local loopback (lo) interface to allow internal BGP or BGP4+ connections to stay up
regardless of which interface is used to reach a neighbor.
Use the no variant of this command to remove the IPv4 or IPv6 address from the
interface as the source IPv4 or IPv6 address of BGP or BGP4+ packets sent to the
neighbor, and restores the interface assignment to the closest interface, which is
also called the best local address.
Syntax
neighbor <neighborid> update-source <interface>
no neighbor <neighborid> update-source
Default Use of this command sets a default value of 2 for the maximum hop count.
Mode [BGP] Router Configuration or IPv4 Address Family Configuration
Mode [BGP4+] Router Configuration
Usage Use this command in conjunction with any specified interface on the router. The
local loopback interface is the interface that is most commonly used with this
command. The use of local loopback interface eliminates a dependency and BGP
or BGP4+ does not have to rely on the availability of a particular interface for
making BGP or BGP4+ peer relationships.
Parameter Description
<neighborid> {<ip-address>|<ipv6-addr>|<peer-group>}
<ip-address> Specify the address of an IPv4 BGP neighbor, in
dotted decimal notation A.B.C.D.
<ipv6-addr> Specify the address of an IPv6 BGP4+ neighbor,
entered in hexadecimal in the format X:X::X:X.
<peer-group> Enter the name of an existing peer-group. For
information on how to create peer groups, refer
to the neighbor peer-group (add a neighbor)
command, and neighbor route-map command.
When this parameter is used with this
command, the command applies on all peers in
the specified group.
<interface> Specifies the local loopback interface (lo).
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