Allied Telesis VERSION 5.4.3-2.6 Switch User Manual


 
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 3.67
ip community-list (BGP and BGP4+)
Use this command to add an entry to a standard or extended BGP community-list filter.
Use the no variant of this command to delete a standard or extended community list
entry.
Syntax [BGP/BGP4+] ip community-list <listname> {deny|permit} .<community>
no ip community-list <listname> {deny|permit} .<community>
Mode [BGP/BGP4+] Global Configuration
Usage [BGP/BGP4+] A community-list can be used as a filter to BGP updates. Use this command to define the
community access list globally, then use neighbor configuration commands to apply the
list to a particular neighbor.
There are two kinds of community-lists: expanded and standard. A standard community-
list defines the community attributes explicitly and not via a regular expression. An
expanded community-list defines the communities attributes with regular expressions.
The standard community-list is compiled into binary format and is directly compared with
the BGP communities attribute in the BGP updates. The comparison is faster than the
expanded community-list. Any community value that does not match the standard
community value is automatically treated as expanded.
Example
[BGP/BGP4+]
Related Commands
ip community-list standard (BGP and BGP4+)
ip community-list expanded (BGP and BGP4+)
show ip community-list (BGP and BGP4+)
Parameter Description
<listname> Specifies the community listname.
deny Specifies the community to reject.
permit Specifies the community to accept.
.<community>{
<AS:VAL>|local-AS|no-advertise|no-export}
<AS:VAL> Specifies the valid value for the community number. This format
represents the 32 bit communities value, where AS is the high order
16 bits and VAL is the low order 16 bits in digit format.
local-AS Specifies routes not to be advertised to external BGP peers.
no-advertise Specifies routes not to be advertised to other BGP peers.
no-export Specifies routes not to be advertised outside of Autonomous System
boundary.
awplus#
configure terminal
awplus(config)#
ip community-list mylist permit 7675:80 7675:90