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TenGigabitEthernet 12/17 is up, line protocol is up
Internet Address 10.2.2.1/24, Area 0.0.0.0
Process ID 1, Router ID 11.1.2.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 11.1.2.1, Interface address 10.2.2.1
Backup Designated Router (ID) 0.0.0.0, Interface address 0.0.0.0
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:04
Neighbor Count is 0, Adjacent neighbor count is 0
TenGigabitEthernet 12/21 is up, line protocol is up
Internet Address 10.2.3.1/24, Area 0.0.0.0
Process ID 1, Router ID 11.1.2.1, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 13.1.1.1, Interface address 10.2.3.2
Backup Designated Router (ID) 11.1.2.1, Interface address 10.2.3.1
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:05
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 13.1.1.1 (Designated Router)
Dell>
Loopback interfaces also help the OSPF process. OSPF picks the highest interface address as the router-id and a Loopback
interface address has a higher precedence than other interface addresses.
Example of Viewing OSPF Status on a Loopback Interface
Dell#show ip ospf 1 int
TenGigabitEthernet 13/23 is up, line protocol is up
Internet Address 10.168.0.1/24, Area 0.0.0.1
Process ID 1, Router ID 10.168.253.2, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DROTHER, Priority 1
Designated Router (ID) 10.168.253.5, Interface address 10.168.0.4
Backup Designated Router (ID) 192.168.253.3, Interface address 10.168.0.2
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
Hello due in 00:00:08
Neighbor Count is 3, Adjacent neighbor count is 2
Adjacent with neighbor 10.168.253.5 (Designated Router)
Adjacent with neighbor 10.168.253.3 (Backup Designated Router)
Loopback 0 is up, line protocol is up
Internet Address 10.168.253.2/32, Area 0.0.0.1
Process ID 1, Router ID 10.168.253.2, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host.
Dell#
Assigning OSPFv3 Process ID and Router ID to a VRF
To assign, disable, or reset OSPFv3 on a non-default VRF, use the following commands.
● Enable the OSPFv3 process on a non-default VRF and enter OSPFv3 mode.
CONFIGURATION mode
ipv6 router ospf {process ID} vrf {vrf-name}
The process ID range is from 0 to 65535.
● Assign the router ID for this OSPFv3 process.
CONF-IPV6-ROUTER-OSPF mode
router-id {number}
○ number: the IPv4 address.
The format is A.B.C.D.
NOTE: Enter the router-id for an OSPFv3 router as an IPv4 IP address.
● Disable OSPF.
CONFIGURATION mode
Open Shortest Path First (OSPFv2)
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