Reference Guide
Open Shortest Path First (OSPFv2) | 663
To ensure equal intervals between the routers, manually set the dead interval of the Dell Networking router
to match the Cisco configuration. Use the command “ip ospf dead-interval <x>” in interface mode:
Figure 35-6. Command Example: ip ospf intervals
Figure 35-7. OSPF Configuration with intervals set
Configuration Information
The interfaces must be in Layer-3 mode (assigned an IP address) and enabled so that they can send and
receive traffic. The OSPF process must know about these interfaces. To make the OSPF process aware of
these interfaces, they must be assigned to OSPF areas.
OSPF must be configured GLOBALLY on the system in CONFIGURATION mode.
OSPF features and functions are assigned to each router using the CONFIG-INTERFACE commands for
each interface.
Configuration Task List for OSPFv2 (OSPF for IPv4)
Open Shortest Path First version 2 (OSPF for IPv4) is supported on the S5000.
1. Configure a physical interface. Assign an IP address, physical or loopback, to the interface to enable
Layer 3 routing.
2. Enable OSPF globally. Assign network area and neighbors.
3. Add interface or configure other attributes.
The following configuration steps include two mandatory steps and several optional ones:
• Enabling OSPFv2 (mandatory)
Note: By default, OSPF is disabled
Dell(conf)#int te 2/2
Dell(conf-if-te-2/2)#ip ospf hello-interval 20
Dell(conf-if-te-2/2)#ip ospf dead-interval 80
Dell(conf-if-te-2/2)#
Dead Interval
Set at 4x
Hello Interval
Dell (conf-if-te-2/2)#ip ospf dead-interval 20
Dell (conf-if-te-2/2)#do show ip os int te 1/3
TenGigabitEthernet 2/2 is up, line protocol is up
Internet Address 20.0.0.1/24, Area 0
Process ID 10, Router ID 1.1.1.2, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 1.1.1.2, Interface address 30.0.0.1
Backup Designated Router (ID) 1.1.1.1, Interface address 30.0.0.2
Timer intervals configured, Hello 20, Dead 80, Wait 20, Retransmit 5
Hello due in 00:00:04
Neighbor Count is 1, Adjacent neighbor count is 1
Adjacent with neighbor 1.1.1.1 (Backup Designated Router)
Dell (conf-if-te-2/2)#
Dead Interval
Set at 4x
Hello Interval