BGP Route Summarization Policy

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Diagram

Classes

policies (apic.tenants)

Name	Type	Constraint	Mandatory	Default Value
bgp_route_summarization_policies	List	`[bgp_route_summarization_policies]`	No

bgp_route_summarization_policies (apic.tenants.policies)

Name	Type	Constraint	Mandatory	Default Value
name	String	Regex: `^[a-zA-Z0-9_.:-]{1,64}$`	Yes
description	String	Regex: `^[a-zA-Z0-9\\!#$%()*,-./:;@ _{\|}~?&+]{1,128}$`	No
as_set	Boolean	`true`, `false`	No	`false`
summary_only	Boolean	`true`, `false`	No	`false`
af_mcast	Boolean	`true`, `false`	No	`false`
af_ucast	Boolean	`true`, `false`	No	`true`

Examples

Example-1: This configures a route summarization policy named BGP_SUMM. The as_set attribute is set to true to generate the AS-SET data to maintain the AS path post-summarization. It should be set to false if it required for the summary prefix to be originated by ACI based on the overall BGP routing design. The summary_only attribute is set to true to only advertise the summary prefix and suppress the more specific prefixes within it, which is typically wanted when summarizing routes. This policy will only match the unicast address family since af_ucast is set to true, and af_mcast is set to false. Once configured, the policy will be associated with an external EPG subnet marked with export route control in order to execute the actual summarization for the configured external EPG subnet.

apic:
  tenants:
    - name: ABC
      policies:
        bgp_route_summarization_policies:
          - name: BGP_SUMM
            description: Policy to only advertise unicast summary prefixes and generate AS-SET data
            as_set: true
            summary_only: true
            af_mcast: false
            af_ucast: true