ip extcommunity-list standard
Use this command to create and delete a standard extended-community list. The extended community attribute is 8 bytes in 2 formats. The sub-type can be route target (rt) or site of origin (soo). Thus, the sub-type of each community must be specified when creating the extended community list. Regarding the formats, an extended community is based on a 6-byte value. These 6-bytes are represented in 4-btye:2-byte format, and may be entered in one of the following forms:
• Format 1, aa.nn: The 16-bit value of the AS (aa) number is represented in the higher-order 4-bytes. If the extended ASN capability is enabled, the AS number is represented using higher-order 4-bytes. The nn assigned value is represented in the low-order 2-bytes in both cases.
• Format 2, IPaddr:nn: In this format, the higher-order 4-bytes are used to represent the IP address, and the low-order 2-bytes are used to represent the assigned value.
Use the no parameter with this command to delete the extended-community-list entry.
Command Syntax
ip extcommunity-list standard WORD (deny|permit) (rt|soo) (aa:nn)
no ip extcommunity-list standard WORD (deny|permit) (rt|soo) (aa:nn)
Parameters
WORD
Extended community list name
deny
Reject the community
permit
Accept the community
rt
Route target extended community in aa:nn or IPaddr:nn format
soo
Site-of-origin extended community in aa:nn or IPaddr:nn format
Default
By default, ip extcommunity list is disabled
Command Mode
Configure mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#configure terminal
(config)#ip extcommunity-list standard 36 permit rt 5675:50
(config)#ip extcommunity-list standard CLIST permit soo 10.10.32.15:70
Last modified date: 07-13-2023