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To configure OSPF on a PicOS device, complete the tasks described in the following sections.

Configuring OSPF Router ID

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Use the following command to configure OSPF router ID:

set protocols ospf4 ospf router-id <router-id>

The following example configures 1.1.1.1 as the OSPF router ID:

admin@XorPlus# set protocols ospf4ospf router-id 1.1.1.1
admin@XorPlus# commit
Commit OK.
Save done.

Do not change the router ID after completing the configuration.

Configuring OSPF Areas

Divide an OSPF domain into areas, which contains the flow of most routing protocol traffic within a single area and reduces the impact of protocol on CPU and memory.

Use the following command to configure OSPF areas:

set protocols ospf4 area <area-id> area-type <type>

Area ID 0.0.0.0 is reserved for the backbone and each OSPF domain should have the backbone area. All traffic between two non-backbone areas must pass through the backbone. OSPF area types supported by PicOS are: normal, stub, and NSSA.

The example that follows demonstrates configuration of three different areas:

admin@XorPlus# set protocols ospf4ospf area 0.0.0.0
area-type normal
admin@XorPlus# set protocols ospf4ospf area 1.1.1.1 area-type stub
admin@XorPlus# set protocols ospf4ospf area 2.2.2.2 area-type nssa
admin@XorPlus# commit
Commit OK.
Save done.

Configuring OSPF Interfaces

After configuring an OSPF areaareas, assign a switch interface to the area. Once an interface is assigned to an OSPF area, it will start sending OSPF hello messages.

Use the following command to assign a Layer 3 interface to an OSPF area:

set protocols ospf4 area <area-id> interface <interface-name> vif <interface-name> address <ip-address>protocol ospf interface <vlan-interface> vif <vlan-interface> area {<ipv4>|<0-4294967295>}

The following commands create Layer 3 VLAN interfaces vlan-2 and vlan-3. The interfaces are given IP addresses and switch ports are assiged assigned to them. Finally, both interfaces are configured to be in the OSPF backbone area according to the table shown below.

admin@XorPlus# set protocols ospf router-id 4.4.4.4
admin@XorPlus# set vlans vlan-id 220 l3-interface vlan-220
admin@XorPlus# set vlans vlan-id 330 l3-interface vlan-330
admin@XorPlus# set vlan-interface interface vlan-220 vif vlan-220 address 10.10.6070.10 prefix-length 24
admin@XorPlus# set vlan-interface interface vlan-330 vif vlan-330 address 10.10.6171.10 prefix-length 24
admin@XorPlus# set interface gigabit-ethernet ge-1/1/1 family ethernet-switching native-vlan-id 220
admin@XorPlus# set interface gigabit-ethernet ge-1/1/2 family ethernet-switching native-vlan-id 330
admin@XorPlus# set protocols ospf4 area 0.0.0.0 ospf interface vlan-220 vif vlan-220 addressarea 100.100.600.100
admin@XorPlus# set protocols ospf4 area 0.0.0.0ospf interface vlan-330 vif vlan-330 addressarea 100.100.610.100
admin@XorPlus# commit
Waiting for merging configuration.
Commit OK.
Save done.
admin@XorPlus#

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Fine-tune OSPF operation by configuring additional OSPF interface parameters including hello interval, interface cost, passive interface, priority, retransmit intervalBFD, router dead interval, MD5 authentication and transmit delayMD5 key.

The following example demonstrates how to configure some of the OSPF interface parameters:

admin@XorPlus# set protocols ospf4 area 0.0.0.0ospf interface vlan-220 vif vlan-2 address 10.10.60.10 20 hello-interval 5
admin@XorPlus# set protocols ospf4 area 0.0.0.0 ospf interface vlan-220 vif vlan-2 address 10.10.60.10 20 interface-cost 8
admin@XorPlus# set protocols ospf4 area 0.0.0.0 ospf interface vlan-220 vif vlan-2 address 10.10.60.10 transmit-delay 220 dead-interval 120
admin@XorPlus# commit
Waiting for merging configuration.
Commit OK.
Save done.