Specifying a RIP neighbor ························································································································ 31
Configuring RIP FRR ······································································································································· 32
Configuring BFD for RIP ·································································································································· 33
Displaying and maintaining RIP ······················································································································· 34
RIP configuration examples ····························································································································· 35
Configuring RIP version ··························································································································· 35
Configuring RIP FRR ······························································································································· 42
Troubleshooting RIP ········································································································································ 54
No RIP updates received ························································································································· 54
Route oscillation occurred ························································································································ 54
Configuring OSPF ························································································· 55
Overview ·························································································································································· 55
OSPF packets ·········································································································································· 55
LSA types ················································································································································· 55
OSPF area ··············································································································································· 56
Router types ············································································································································· 58
Route types ·············································································································································· 59
Route calculation ······································································································································ 59
OSPF network types ································································································································ 60
DR and BDR ············································································································································ 60
Protocols and standards ·························································································································· 61
OSPF configuration task list ····························································································································· 61
Enabling OSPF ················································································································································ 63
Configuration prerequisites ······················································································································ 63
Configuration guidelines ··························································································································· 63
Configuration procedure ··························································································································· 63
Configuring OSPF areas ·································································································································· 64
Configuration prerequisites ······················································································································ 64
Configuring a stub area ···························································································································· 64
Configuring an NSSA area ······················································································································· 65
Configuring a virtual link ··························································································································· 66
Configuring OSPF network types ····················································································································· 66
Configuration prerequisites ······················································································································ 67
Configuring OSPF route control ······················································································································· 69
Configuration prerequisites ······················································································································ 69
Configuring OSPF preference ·················································································································· 72
Advertising a host route ··························································································································· 73
Configuration prerequisites ······················································································································ 74
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