Configuring OSPF route control ··································································································································· 72
Configuration prerequisites ·································································································································· 72
Configuring OSPF preference ······························································································································ 75
Advertising a host route ········································································································································ 77
Configuration prerequisites ·································································································································· 78
Configuring OSPF timers ······································································································································ 78
Configuring stub routers ······································································································································· 81
Configuring OSPF authentication ························································································································ 82
Logging neighbor state changes ·························································································································· 85
Enabling OSPF ISPF ·············································································································································· 86
Configuring prefix suppression····································································································································· 87
Configuring prefix prioritization ··································································································································· 88
Configuring OSPF PIC ··················································································································································· 88
Configuring OSPF GR ··················································································································································· 88
Configuring OSPF GR restarter ···························································································································· 89
Configuring OSPF GR helper ······························································································································· 90
Triggering OSPF GR ············································································································································· 90
Configuring BFD for OSPF ············································································································································ 91
Configuring OSPF FRR ··················································································································································· 91
Configuration prerequisites ·································································································································· 92
Configuration guidelines ······································································································································ 92
Displaying and maintaining OSPF ······························································································································· 93
OSPF configuration examples ······································································································································ 95
iii