(Optional) Configuring an apply Clause
Context
An apply clause specifies the action of setting attributes for routes that have matched a routing policy node. If a node does not have an apply clause configured, the node will only filter routes. If one or more apply clauses are configured in a node, all the apply clauses are applied to routes that have matched the node.
Procedure
- Run system-view
The system view is displayed.
- Run route-policy route-policy-name { permit | deny } node node
The route-policy view is displayed.
- Run the following commands as required to configure apply clauses. A node can have multiple or no apply clauses.
Run apply as-path { { as-number-plain | as-number-dot } &<1-10> { additive | overwrite } | none overwrite }
An apply clause is configured to change the AS_Path attribute of BGP routes.
Run apply backup-interface interface-type interface-number
An apply clause is configured to change the backup outbound interface of routes.
Run apply backup-nexthop { ip-address | auto }
An apply clause is configured to change the backup next hop of routes.
Run apply comm-filter { basic-comm-filter-number | adv-comm-filter-number | comm-filter-name } delete
An apply clause is configured to delete the specified community attribute of BGP routes.
To delete the community attributes, you can run the ip community-filter command several times to configure community attributes one by one, and apply the routing policy containing the apply comm-filter delete command to delete these community attributes. If multiple community attributes are specified in one community filter, none of them can be deleted.
Run apply community none
An apply clause is configured to delete all community attributes of BGP routes.
Run apply community { community-number | aa:nn | internet | no-advertise | no-export | no-export-subconfed } &<1-32> [ additive ]
An apply clause is configured to set the community attributes of BGP routes.
Run apply cost [ + | - ] cost
The route cost is set.
Run the following commands as required to set the cost type of a route:
Run apply cost-type { external | internal }
The IS-IS cost type is set.
Run apply cost-type { type-1 | type-2 }
The OSPF cost type is set.
Run apply dampening half-life-reach reuse suppress ceiling
The dampening parameters of EBGP routes are set.
Run apply extcommunity { rt { as-number:nn | 4as-number:nn | ipv4-address:nn } }&<1-16> [ additive ]
An extended community attribute (route-target) of BGP is set.
Run apply ip-address next-hop { ipv4-address | peer-address }
The next-hop address of the IPv4 route is set.
Run apply ipv6 next-hop { peer-address | ipv6-address }
The next-hop address of the IPv6 route is set.
Run apply isis { level-1 | level-1-2 | level-2 }
The level of the IS-IS route is set.
Run apply local-preference preference
The local preference for BGP routes is set.
Run apply origin { egp { as-number-plain | as-number-dot } | igp | incomplete }
The Origin attribute of BGP routes is set.
Run apply ospf { backbone | stub-area }
An OSPF area into which routes are imported is set.
Run apply preference preference
The preference of the routing protocol is set.
Run apply preferred-value preferred-value
A preferred value is set for BGP routes.
Run apply tag tag
The route tag is set.