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NOTE: By default, OSPF is disabled.
Configuration Task List for OSPFv2 (OSPF for IPv4)
Dell Networking OS supports open shortest path first version 2 (OSPF for IPv4).
The following configuration tasks include two mandatory tasks and several optional tasks:
● Enabling OSPFv2 (mandatory)
● Assigning an OSPFv2 Area (mandatory)
● Enable OSPFv2 on Interfaces
● Configuring Stub Areas
● Configuring LSA Throttling Timers
● Enabling Passive Interfaces
● Enabling Fast-Convergence
● Changing OSPFv2 Parameters on Interfaces
● Enabling OSPFv2 Authentication
● Redistributing Routes
● Troubleshooting OSPFv2
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 interfaces or configure other attributes.
4. Set the time interval between when the switch receives a topology change and starts a shortest path first (SPF) calculation.
Use timers spf delay holdtime
NOTE:
To set the interval time between the reception of topology changes and calculation of SPF in milli seconds, use
the timers spf delay holdtime msec command.
Example
Dell#
Dell#conf
Dell(conf)#router ospf 1
Dell(conf-router_ospf-1)#timer spf 2 5 msec
Dell(conf-router_ospf-1)#
Dell(conf-router_ospf-1)#show config
!
router ospf 1
timers spf 2 5 msec
Dell(conf-router_ospf-1)#
Dell(conf-router_ospf-1)#end
Dell#
For a complete list of the OSPF commands, refer to the OSPF section in the Dell Networking OS Command Line Reference
Guide document.
Enabling OSPFv2
To enable Layer 3 routing, assign an IP address to an interface (physical or Loopback). By default, OSPF, similar to all routing
protocols, is disabled.
You must configure at least one interface for Layer 3 before enabling OSPFv2 globally.
1. Assign an IP address to an interface.
CONFIG-INTERFACE mode
ip address ip-address mask
The format is A.B.C.D/M.
If you are using a Loopback interface, refer to Loopback Interfaces.
2. Enable the interface.
CONFIG-INTERFACE mode
Open Shortest Path First (OSPFv2 and OSPFv3)
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