Configuration Guide User guide

FastIron Configuration Guide 1235

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Configuring OSPF

Perform the following steps to begin using OSPF on the router.

1. “Enabling OSPF on the router” on page 1236

2. “Assigning OSPF areas” on page 1237

3. “Assigning an area range (optional)” on page 1241

4. “Assigning interfaces to an area” on page 1242.

5. “Defining redistribution filters” on page 1252

6. “Enabling route redistribution” on page 1258.

7. “Modifying the OSPF standard compliance setting” on page 1268

NOTE

OSPF is automatically enabled without a system reset.

OSPF configuration rules

• Brocade FastIron devices support a maximum of 676 OSPF interfaces.

• If a router is to operate as an ASBR, you must enable the ASBR capability at the system level.

• Redistribution must be enabled on routers configured to operate as ASBRs.

• All router ports must be assigned to one of the defined areas on an OSPF router. When a port

is assigned to an area, all corresponding subnets on that port are automatically included in the

assignment.

OSPF parameters

You can modify or set the following global and interface OSPF parameters.

Global parameters:

• Modify the OSPF standard compliance setting

• Assign OSPF areas

• Define an area range

• Define the area virtual link

• Set global default metric for OSPF

• Change the reference bandwidth for the default cost of OSPF interfaces

• Disable or re-enable load sharing

• Enable or disable default-information-originate

• Modify Shortest Path First (SPF) timers

• Define external route summarization

• Modify the redistribution metric type

• Define deny redistribution

• Define permit redistribution