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BGP and BGP4+ Commands
Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
C613-50032-01 REV D AlliedWare Plus
TM
Operating System - Software Version 5.4.3-2.6 3.149
neighbor prefix-list (BGP and BGP4+)
Use this command to distribute BGP and BGP4+ neighbor information as specified in a
prefix list.
Use the no variant of this command to remove an entry.
Syntax [BGP/BGP4+] neighbor <neighborid> prefix-list <listname> {in|out}
no neighbor <neighborid> prefix-list <listname> {in|out}
Mode [BGP]
Router Configuration or IPv4 Address Family Configuration for a VRF instance
Mode [BGP4+] IPv6 Address Family Configuration
Usage [BGP/BGP4+] Use this command to specify a prefix list for filtering BGP or BGP4+ advertisements.
Filtering by prefix list matches the prefixes of routes with those listed in the prefix list. If
there is a match, the route is used. An empty prefix list permits all prefixes. If a given prefix
does not match any entries of a prefix list, the route is denied access.
The router begins the search at the top of the prefix list, with the sequence number 1.
Once a match or deny occurs, the router does not need to go through the rest of the prefix
list. For efficiency the most common matches or denies are listed at the top.
The neighbor distribute-list command is an alternative to the neighbor prefix-list
command and only one of them can be used for filtering to the same neighbor in any
direction.
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)
(BGP and BGP+) command on page 3.144, and
neighbor route-map (BGP and BGP4+)
command on page 3.159. When this parameter
is used with this command, the command
applies on all peers in the specified group.
<listname> The name of an IP prefix list.
in Specifies that the IP prefix list applies to incoming advertisements.
out Specifies that the IP prefix list applies to outgoing advertisements.