iii
OSPF Configuration Task List ··············································································································4-19
Enabling OSPF ·····································································································································4-21
Prerequisites··································································································································4-21
Configuration Procedure················································································································4-21
Configuring OSPF Areas ······················································································································4-22
Prerequisites··································································································································4-23
Configuring a Stub Area················································································································4-23
Configuring an NSSA Area············································································································4-24
Configuring a Virtual Link ··············································································································4-24
Configuring OSPF Network Types········································································································4-25
Prerequisites··································································································································4-25
Configuring the OSPF Network Type for an Interface as Broadcast ············································4-26
Configuring the OSPF Network Type for an Interface as NBMA··················································4-26
Configuring the OSPF Network Type for an Interface as P2MP···················································4-27
Configuring the OSPF Network Type for an Interface as P2P······················································4-28
Configuring OSPF Route Control··········································································································4-28
Prerequisites··································································································································4-28
Configuring OSPF Route Summarization······················································································4-28
Configuring OSPF Inbound Route Filtering···················································································4-30
Configuring ABR Type-3 LSA Filtering··························································································4-31
Configuring an OSPF Cost for an Interface···················································································4-31
Configuring the Maximum Number of OSPF Routes····································································4-32
Configuring the Maximum Number of Load-balanced Routes······················································4-32
Configuring a Preference for OSPF ······························································································4-33
Configuring OSPF Route Redistribution························································································4-33
Advertising a Host Route···············································································································4-35
Configuring OSPF Network Optimization······························································································4-35
Prerequisites··································································································································4-35
Configuring OSPF Packet Timers·································································································4-36
Specifying an LSA Transmission Delay ························································································4-37
Specifying SPF Calculation Interval······························································································4-37
Specifying the LSA Minimum Repeat Arrival Interval····································································4-38
Specifying the LSA Generation Interval ························································································4-38
Disabling Interfaces from Sending OSPF Packets········································································4-39
Configuring Stub Routers··············································································································4-40
Configuring OSPF Authentication ·································································································4-40
Adding the Interface MTU into DD Packets···················································································4-41
Configuring the Maximum Number of External LSAs in LSDB ·····················································4-41
Making External Route Selection Rules Defined in RFC 1583 Compatible··································4-42
Logging Neighbor State Changes·································································································4-42
Configuring OSPF Network Management·····················································································4-43
Enabling Message Logging···········································································································4-43
Enabling the Advertisement and Reception of Opaque LSAs ······················································4-44
Configuring OSPF to Give Priority to Receiving and Processing Hello Packets···························4-44
Configuring the LSU Transmit Rate ······························································································4-44
Configuring OSPF FRR ························································································································4-45
