ii
Configuring the maximum number of ECMP routes ················································································· 33
Enabling zero field check on incoming RIPv1 messages ········································································· 34
Enabling source IP address check on incoming RIP updates ·································································· 34
Configuring RIPv2 message authentication ····························································································· 34
Specifying a RIP neighbor ························································································································ 35
Configuring RIP network management ···································································································· 35
Configuring the RIP packet sending rate ································································································· 35
Setting the maximum length of RIP packets ···························································································· 36
Configuring RIP GR ········································································································································· 36
Configuring BFD for RIP ·································································································································· 37
Configuring single-hop echo detection (for a directly connected RIP neighbor) ······································ 37
Configuring single-hop echo detection (for a specific destination) ··························································· 37
Configuring bidirectional control detection ······························································································· 38
Configuring RIP FRR ······································································································································· 38
Configuration restrictions and guidelines ································································································· 39
Configuration prerequisites ······················································································································ 39
Configuration procedure ··························································································································· 39
Displaying and maintaining RIP ······················································································································· 39
RIP configuration examples ····························································································································· 40
Basic RIP configuration example ············································································································· 40
RIP route redistribution configuration example ························································································ 43
RIP interface additional metric configuration example ············································································· 45
RIP summary route advertisement configuration example ······································································ 46
BFD for RIP configuration example (single-hop echo detection for a directly connected neighbor) ········ 49
BFD for RIP configuration example (single hop echo detection for a specific destination) ······················ 51
BFD for RIP configuration example (bidirectional detection in BFD control packet mode) ······················ 54
RIP FRR configuration example ··············································································································· 57
Configuring OSPF ························································································· 60
Overview ·························································································································································· 60
OSPF packets ·········································································································································· 60
LSA types ················································································································································· 60
OSPF areas ············································································································································· 61
Router types ············································································································································· 63
Route types ·············································································································································· 64
Route calculation ······································································································································ 64
OSPF network types ································································································································ 65
DR and BDR ············································································································································ 65
Protocols and standards ·························································································································· 66
OSPF configuration task list ····························································································································· 66
Enabling OSPF ················································································································································ 68
Configuration prerequisites ······················································································································ 68
Configuration guidelines ··························································································································· 68
Enabling OSPF on a network ··················································································································· 68
Enabling OSPF on an interface ················································································································ 69
Configuring OSPF areas ·································································································································· 69
Configuring a stub area ···························································································································· 70
Configuring an NSSA area ······················································································································· 70
Configuring a virtual link ··························································································································· 71
Configuring OSPF network types ····················································································································· 71
Configuration prerequisites ······················································································································ 72
Configuring the broadcast network type for an interface ·········································································· 72
Configuring the NBMA network type for an interface ··············································································· 72
Configuring the P2MP network type for an interface ················································································ 73
Configuring the P2P network type for an interface ··················································································· 73
Configuring OSPF route control ······················································································································· 74
Configuration prerequisites ······················································································································ 74
Configuring OSPF route summarization ·································································································· 74
Configuring received OSPF route filtering ································································································ 75
Configuring Type-3 LSA filtering ·············································································································· 76
Configuring an OSPF cost for an interface ······························································································ 76
Configuring the maximum number of ECMP routes ················································································· 77
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