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Tuning and optimizing RIP networks ···························································································································· 30
Configuration prerequisites ·································································································································· 30
Configuring RIP timers ··········································································································································· 30
Configuring split horizon and poison reverse ···································································································· 31
Configuring the maximum number of ECMP routes ·························································································· 32
Enabling zero field check on incoming RIPv1 messages ·················································································· 32
Enabling source IP address check on incoming RIP updates ············································································ 32
Configuring RIPv2 message authentication ········································································································ 33
Specifying a RIP neighbor ···································································································································· 33
Configuring RIP network management ················································································································ 34
Configuring the RIP packet sending rate ············································································································ 34
Setting the maximum length of RIP packets ········································································································ 34
Configuring BFD for RIP ················································································································································· 35
Configuring single-hop echo detection (for a directly connected RIP neighbor) ············································ 35
Configuring single-hop echo detection (for a specific destination) ·································································· 36
Configuring bidirectional control detection ········································································································ 36
Configuring RIP FRR ······················································································································································· 37
Configuration restrictions and guidelines ··········································································································· 37
Configuration prerequisites ·································································································································· 37
Configuration procedure ······································································································································ 37
Displaying and maintaining RIP ··································································································································· 38
RIP configuration examples ··········································································································································· 38
Configuring basic RIP ··········································································································································· 38
Configuring RIP route redistribution ····················································································································· 41
Configuring an additional metric for a RIP interface ························································································· 43
Configuring RIP to advertise a summary route ··································································································· 45
Configuring BFD for RIP (single-hop echo detection for a directly connected neighbor) ······························ 48
Configure BFD for RIP (single-hop echo detection for a specific destination) ················································· 50
Configuring BFD for RIP (bidirectional control detection) ················································································· 53
Configuring RIP FRR ·············································································································································· 57
Configuring OSPF ······················································································································································ 59
Overview ········································································································································································· 59
OSPF packets ························································································································································· 59
LSA types ································································································································································ 60
OSPF areas ···························································································································································· 60
Router types ···························································································································································· 62
Route types ····························································································································································· 63
Route calculation ··················································································································································· 64
OSPF network types ·············································································································································· 64
DR and BDR ··························································································································································· 64
Protocols and standards ······································································································································· 65
OSPF configuration task list ·········································································································································· 66
Enabling OSPF ······························································································································································· 67
Configuration prerequisites ·································································································································· 67
Configuration guidelines ······································································································································ 67
Enabling OSPF on a network ······························································································································· 68
Enabling OSPF on an interface ··························································································································· 68
Configuring OSPF areas ··············································································································································· 69
Configuring a stub area ······································································································································· 69
Configuring an NSSA area ·································································································································· 70
Configuring a virtual link ······································································································································ 70
Configuring OSPF network types ································································································································· 71
Configuration prerequisites ·································································································································· 71
Configuring the broadcast network type for an interface ················································································· 71
