iii
Configuring VF tracking ········································································································································ 64
Configuring VRRP packet attributes ····················································································································· 65
Displaying and maintaining VRRP for IPv6 ········································································································· 66
IPv4-based VRRP configuration examples ··················································································································· 66
Single VRRP group configuration example ········································································································· 66
VRRP interface tracking configuration example ································································································· 69
Multiple VRRP groups configuration example ···································································································· 72
VRRP load balancing mode configuration example ·························································································· 74
IPv6-based VRRP configuration examples ··················································································································· 82
Single VRRP group configuration example ········································································································· 83
VRRP interface tracking configuration example ································································································· 85
Multiple VRRP groups configuration example ···································································································· 89
VRRP load balancing mode configuration example ·························································································· 91
Troubleshooting VRRP ·················································································································································· 100
Configuring BFD ······················································································································································ 101
Introduction to BFD ······················································································································································· 101
How BFD works ··················································································································································· 101
BFD packet format ··············································································································································· 104
Supported features ·············································································································································· 105
Protocols and standards ····································································································································· 106
Configuring BFD basic functions ································································································································ 106
Configuration prerequisites ································································································································ 106
Configuration procedure ···································································································································· 106
Enabling trap ································································································································································ 107
Displaying and maintaining BFD ································································································································ 108
Configuring track ···················································································································································· 109
Track overview ····························································································································································· 109
Introduction to collaboration ······························································································································ 109
Collaboration fundamentals ······························································································································· 109
Collaboration application example ··················································································································· 110
Track configuration task list ········································································································································· 110
Associating the track module with a detection module ··························································································· 111
Associating track with NQA ······························································································································ 111
Associating track with BFD ································································································································· 111
Associating track with interface management ································································································· 112
Associating the track module with an application module ······················································································ 113
Associating track with VRRP ······························································································································· 113
Associating track with static routing ·················································································································· 115
Associating track with PBR ································································································································· 116
Associating track with traffic redirection ·········································································································· 118
Displaying and maintaining track entries ·················································································································· 118
Track configuration examples ····································································································································· 119
VRRP-track-NQA collaboration configuration example (the master monitors the uplinks) ··························· 119
Configuring BFD for a vrrp backup to monitor the master ·············································································· 122
Configuring BFD for the VRRP master to monitor the uplink ··········································································· 125
Static routing-track-NQA collaboration configuration example ····································································· 129
Static routing-track-BFD collaboration configuration example ········································································ 133
VRRP-track-interface management collaboration configuration example (the master monitors the uplink interface)······························································································································································· 137
Index ········································································································································································ 140
