Shulou(Shulou.com)06/01 Report--

Configure OSPF to introduce autonomous system external routing

Networking requirements

All switches run OSPF, and the whole autonomous system is divided into three areas.

Where Switch An and Switch B act as ABR to forward routes between areas.

On Switch C, it is configured to introduce external routes (static routes) for ASBR, and routing information can be correctly propagated within AS.

two。 Configuration step

(1) configure the IP address of each interface

SwitchA

SwitchB

SwitchC

SwitchD

(2) configure OSPF, such as SwitchA

(3) configure external routing to introduce autonomous system

3. Verify settin

(1) View the ABR/ASBR information of Switch D

(2) View the OSPF routing table of Switch D

Note that in this example 3.1.2.1 is not real, it is just a routing entry

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