Cisco Cisco IOS Software Release 12.2(27)SBC

This section contains the following tasks: 

Perform this task to sequence and resequence extended community lists. 

This feature introduces IP Extended community-list configuration mode. Both named and numbered 
extended community lists can be configured in IP Extended community-list configuration mode. To 
enter IP Extended community-list configuration mode, the ip extcommunity-list command is entered 
with either the expanded or standard keyword followed by the extended community-list name. This 
configuration mode supports all of the functions that are available in global configuration mode. In 
addition, you can perform the following operations:

Configure sequence numbers for extended community list entries

Resequence existing sequence numbers for extended community list entries 

Configure an extended community list to use default values

Extended community list entries start with the number 10 and increment by 10 for each subsequent entry 
when no sequence number is specified, when default behavior is configured, and when an extended 
community list is resequenced without specifying the first entry number or the increment range for 
subsequent entries. 

Extended community-list entries are sequenced and resequenced on a per-extended community-list 
basis. The resequence command can be used without any arguments to set all entries in a list to default 
sequence numbering. The resequence command also allows you to set the sequence number of the first 
entry and increment range for each subsequent entry. The range of configurable sequence numbers is 
from 1 to 2147483647. 

A sequence number is applied to all extended community-list entries by default regardless of the 
configuration mode. Explicit sequencing and resequencing of extended community list entries can only 
be configured in IP Extended community-list configuration mode and not in global configuration mode.