Allied Telesis manual Ip community-list standard BGP and BGP4+, Standard, Community, Asval

BGP and BGP4+ Commands

ip community-list standard (BGP and BGP4+)

Use this command to add an entry to a standard BGP community-list filter.

Use the no variant of this command to delete the standard community-list entry.

Syntax ip community-list <1-99> {denypermit} [.<community>]

no ip community-list <1-99> {denypermit} [.<community>]

ip community-list standard <standard-listname> {denypermit}

[.<community>]

no ip community-list standard <standard-listname> {denypermit}

[.<community>]

Parameter	Description
<1-99>	Standard community list number.
standard	Specifies a standard community list.
<standard-listname>Standard community list entry.
deny	Specifies community to reject.
permit	Specifies community to accept.
<community>	{<AS:VAL>local-ASno-advertiseno-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 the
	Autonomous System boundary.

Mode Global Configuration

Usage 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. The standard community-list defines the community attributes as explicit values, without regular expressions. The 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.

	Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches
3.70	AlliedWare PlusTM Operating System - Software Version 5.4.3-2.6	C613-50032-01 REV D