Advertising a default route ······················································································································· 31
Setting a preference for RIP ····················································································································· 32
Configuration prerequisites ······················································································································ 33
Setting RIP timers ···································································································································· 33
Specifying a RIP neighbor ························································································································ 36
Configuring RIP GR ········································································································································· 38
Enabling RIP NSR············································································································································ 39
Configuring BFD for RIP ·································································································································· 39
Configuring RIP FRR ······································································································································· 41
Configuration prerequisites ······················································································································ 42
Configuring RIP FRR ······························································································································· 42
Enabling BFD for RIP FRR ······················································································································ 42
Displaying and maintaining RIP ······················································································································· 42
RIP configuration examples ····························································································································· 43
Configuring basic RIP ······························································································································ 43
Configuring RIP GR ································································································································· 52
Configuring RIP NSR ······························································································································· 52
Configuring RIP FRR ······························································································································· 62
Configuring OSPF························································································ 65
Overview ·························································································································································· 65
OSPF packets ·········································································································································· 65
LSA types ················································································································································· 65
OSPF areas ············································································································································· 66
Router types ············································································································································· 68
Route types ·············································································································································· 69
Route calculation ······································································································································ 69
OSPF network types ································································································································ 70
DR and BDR ············································································································································ 70
Protocols and standards ·························································································································· 71
OSPF configuration task list ····························································································································· 71
Enabling OSPF ················································································································································ 73
Configuration prerequisites ······················································································································ 73
Configuration guidelines ··························································································································· 73
Enabling OSPF on a network ··················································································································· 74
Configuring OSPF areas ·································································································································· 75
Configuring a stub area ···························································································································· 75
Configuring an NSSA area ······················································································································· 76
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