Community List

Community lists are BGP route filtering tools that define collections of community values used to group routes with common characteristics for policy implementation. They enable administrators to match and manipulate BGP routes based on community attributes, providing flexible mechanisms for implementing routing policies, traffic engineering, and service differentiation. Community lists support both standard (well-known) and extended community formats, allowing for sophisticated route tagging and filtering strategies in complex BGP deployments.

Diagram

Classes

configuration (iosxe.devices)

Name	Type	Constraint	Mandatory	Default Value
community_lists	Class	`[community_lists]`	No

community_lists (iosxe.devices.configuration)

Name	Type	Constraint	Mandatory	Default Value
expanded	List	`[expanded]`	No
standard	List	`[standard]`	No

expanded (iosxe.devices.configuration.community_lists)

Name	Type	Constraint	Mandatory	Default Value
name	String		Yes
entries	List	`[entries]`	No

standard (iosxe.devices.configuration.community_lists)

Name	Type	Constraint	Mandatory	Default Value
name	String		Yes
entries	List	`[entries]`	No

entries (iosxe.devices.configuration.community_lists.expanded)

Name	Type	Constraint	Mandatory	Default Value
action	Choice	`permit`, `deny`	Yes
regex	String		Yes

entries (iosxe.devices.configuration.community_lists.standard)

Name	Type	Constraint	Mandatory	Default Value
action	Choice	`permit`, `deny`	Yes
communities	List	String	Yes

Examples

iosxe:
  devices:
    - name: Device1
      configuration:
        community_lists:
          expanded:
            - name: CLE1
              entries:
                - action: permit
                  regex: "65000:500"
          standard:
            - name: CLS1
              entries:
                - action: deny
                  communities: ["65000:500"]
                - action: permit
                  communities: ["65000:501"]