Apply OSPF Accept Policy Changes

About this task

Important

Changing OSPF Accept contexts is a process-oriented operation that can affect system performance and network accessibility while you perform the procedures. If you want to change the default preferences for an OSPF Accept or a prefix-list configuration (as opposed to the default preference), do so before enabling the protocols.

Note

The route policies treat permit and deny rules differently for inbound and outbound traffic.

• For an in-policy (RIP, BGP) or an accept policy (OSPF) using a route-map, if a particular route is not explicitly denied in the accept policy or in-policy with the route-map, then the route is implicitly allowed.

• For an out-policy (RIP, BGP) or a redistribute policy (RIP, OSPF, BGP) using a route-map, even if a particular route is not explicitly allowed in the redistribution policy or out-policy with the route-map, then the route is implicitly denied.

• In order to permit or deny only explicit routes, configure a policy with additional sequences, where, the last sequence permits all routes that are not explicitly permitted or denied.

1. Enter Privileged EXEC mode:

   enable

2. Apply an OSPF accept policy change:

   ip ospf apply accept [vrf WORD<1-16>]

3. Display information about the configured OSPF entries:

   show ip ospf accept [vrf WORD<1-16>] [vrfids WORD<0-512>]

Example

Apply the OSPF accept policy and confirm the configuration:

Switch:1>enable
Switch:1#ip ospf apply accept

Switch:1#show ip ospf accept
================================================================================
                           Ospf Accept - GlobalRouter
================================================================================
ADV_RTR         MET_TYPE ENABLE POLICY
--------------------------------------------------------------------------------
192.0.2.11      type1    true   test1