Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 698

If you want to move an interface associated with one VRF instance to another default or non-default VRF instance, you must first remove the OSPF or Layer3 configurations that already exist on the interface. If you move the interface from one VRF instance to another without removing these existing Layer3 or OSPF configurations, these configurations do not take effect in the new VRF instance. Consider a scenario where the OSPF instance 100 is configured on the default VRF instance and the OSPF instance 200 is configured on the non-default VRF instance named VRF-Red. The interface eth1/1/1 on the default VRF instance is attached to an OSPF process 100 area 1. In this scenario, if you want to move eth1/1/1 from the default VRF instance to VRF-Red, you must first remove the OSPF area configuration to which the interface eth1/1/1 is currently attached to. Assign Router ID You can assign a router ID for the OSPFv3 process. Configure an arbitrary value in the IP address format for each router. Each router ID must be unique. Use the fixed router ID for the active OSPFv3 router process. Changing the router ID brings down the existing OSPFv3 adjacency. The new router ID becomes effective immediately. • Assign the router ID for the OSPFv3 process in ROUTER-OSPFv3 mode. router-id ip-address Assign router ID OS10(config)# router ospfv3 100 OS10(config-router-ospfv3-100)# router-id 10.10.1.5 View OSPFv3 Status OS10# show ipv6 ospf Routing Process ospfv3 100 with ID 10.10.1.5 It is an Area Border Router Min LSA origination 5000 msec, Min LSA arrival 1000 msec Min LSA hold time 0 msec, Max LSA wait time 0 msec Number of area in this router is 2, normal 2 stub 0 nssa Area (0.0.0.0) Number of interface in this area is 1 SPF algorithm executed 42 times Area (0.0.0.1) Number of interface in this area is 1 SPF algorithm executed 42 times Configure Stub Areas Type 5 LSAs are not flooded into stub areas. The ABR advertises a default route into the stub area where it is attached. Stub area routers use the default route to reach external destinations. 1. Enable OSPFv3 routing and enter ROUTER-OSPFv3 mode, from 1 to 65535. router ospfv3 instance number 2. Configure an area as a stub area in ROUTER-OSPFv3 mode. area area-id stub [no-summary] • area-id - Enter the OSPFv3 area ID as an IP address in A.B.C.D format or number, from 1 to 65535. • no-summary - (Optional) Enter to prevent an ABR from sending summary LSAs into the stub area. Configure Stub Area OS10(config)# router ospfv3 10 OS10(conf-router-ospf-10)# area 10.10.5.1 stub no-summary View Stub Area Configuration OS10# show running-configuration ospfv3 ! interface ethernet1/1/3 698 Layer 3