ii
Configuring RIPv2 route summarization ················································································· 31
Disabling host route reception ······························································································ 32
Advertising a default route ··································································································· 32
Configuring received/redistributed route filtering ······································································· 32
Setting a preference for RIP ································································································ 33
Configuring RIP route redistribution ······················································································· 33
Tuning and optimizing RIP networks ···························································································· 34
Configuration prerequisites ·································································································· 34
Setting RIP timers ············································································································· 34
Enabling split horizon and poison reverse ··············································································· 35
Setting the maximum number of RIP ECMP routes ··································································· 35
Enabling zero field check on incoming RIPv1 messages ···························································· 35
Enabling source IP address check on incoming RIP updates ······················································ 36
Configuring RIPv2 message authentication ············································································· 36
Setting the RIP triggered update interval ················································································ 37
Specifying a RIP neighbor ··································································································· 37
Configuring RIP network management ··················································································· 38
Configuring the RIP packet sending rate ················································································· 38
Setting the maximum length of RIP packets ············································································ 38
Setting the DSCP value for outgoing RIP packets ····································································· 39
Configuring RIP GR ·················································································································· 39
Enabling RIP NSR···················································································································· 40
Configuring BFD for RIP ············································································································ 40
Configuring single-hop echo detection (for a directly connected RIP neighbor) ······························· 41
Configuring single-hop echo detection (for a specific destination) ················································ 41
Configuring bidirectional control detection ··············································································· 41
Configuring RIP FRR ················································································································ 42
Configuration restrictions and guidelines ················································································ 42
Configuration prerequisites ·································································································· 42
Configuring RIP FRR ········································································································· 42
Enabling BFD for RIP FRR ·································································································· 43
Displaying and maintaining RIP ··································································································· 43
RIP configuration examples ········································································································ 44
Configuring basic RIP ········································································································· 44
Configuring RIP route redistribution ······················································································· 47
Configuring an additional metric for a RIP interface ··································································· 49
Configuring RIP to advertise a summary route ········································································· 50
Configuring RIP GR ··········································································································· 53
Configuring RIP NSR ········································································································· 54
Configuring BFD for RIP (single-hop echo detection for a directly connected neighbor) ···················· 55
Configuring BFD for RIP (single hop echo detection for a specific destination) ································ 58
Configuring BFD for RIP (bidirectional detection in BFD control packet mode) ································ 60
Configuring RIP FRR ········································································································· 63
Configuring OSPF ·········································································· 66
Overview ································································································································ 66
OSPF packets ·················································································································· 66
LSA types ························································································································ 66
OSPF areas ····················································································································· 67
Router types ····················································································································· 69
Route types ······················································································································ 70
Route calculation ··············································································································· 70
OSPF network types ·········································································································· 71
DR and BDR ···················································································································· 71
Protocols and standards ····································································································· 72
OSPF configuration task list ······································································································· 72
Enabling OSPF ······················································································································· 74
Configuration prerequisites ·································································································· 74
Configuration guidelines ····································································································· 74
Enabling OSPF on a network ······························································································· 74
Enabling OSPF on an interface ···························································································· 75
Configuring OSPF areas ············································································································ 75