iii
Configuring protected VLANs for a smart link group ························································································ 93
Configuring member ports for a smart link group ····························································································· 94
Configuring role preemption for a smart link group·························································································· 95
Enabling the sending of flush messages ············································································································· 95
Configuring an associated device ······························································································································· 96
Configuration prerequisites ·································································································································· 96
Enabling the receiving of flush messages ··········································································································· 96
Displaying and maintaining Smart Link ······················································································································· 96
Smart Link configuration examples ······························································································································ 97
Single smart link group configuration example ································································································· 97
Multiple smart link groups load sharing configuration example ···································································· 101
Configuring Monitor Link ········································································································································ 106
Monitor Link overview ················································································································································· 106
Terminology ························································································································································· 106
How Monitor Link works ····································································································································· 107
Configuring Monitor Link ············································································································································ 107
Configuration prerequisites ································································································································ 107
Creating a monitor link group ··························································································································· 107
Configuring monitor link group member ports ································································································· 107
Displaying and maintaining Monitor Link ················································································································· 108
Monitor Link configuration example ·························································································································· 108
Configuring VRRP ···················································································································································· 112
VRRP overview ······························································································································································ 112
VRRP standard protocol mode ···································································································································· 113
Introduction to VRRP group································································································································· 113
VRRP timers ·························································································································································· 114
Packet format ······················································································································································· 115
Principles of VRRP ················································································································································ 116
VRRP tracking
······················································································································································· 116
VRRP application (taking IPv4-based VRRP for example) ················································································ 117
VRRP load balancing mode ········································································································································ 118
Overview ······························································································································································ 118
Assigning virtual MAC addresses ····················································································································· 119
Virtual forwarder ················································································································································· 121
Packet types ························································································································································· 123
Configuring VRRP for IPv4··········································································································································· 123
VRRP for IPv4 configuration task list ·················································································································· 123
Configuring a VRRP operation mode ················································································································ 124
Specifying the type of MAC addresses mapped to virtual IP addresses
······················································· 124
Creating a VRRP group and configuring virtual IP address ············································································ 125
Configuring router priority, preemptive mode and tracking function ···························································· 126
Configuring VF tracking······································································································································ 127
Configuring VRRP packet attributes ··················································································································· 128
Enabling the trap function for VRRP··················································································································· 129
Displaying and maintaining VRRP for IPv4
······································································································· 129
Configuring VRRP for IPv6··········································································································································· 130
VRRP for IPv6 configuration task list ·················································································································· 130
Specifying the type of MAC addresses mapped to virtual IPv6 addresses ·················································· 130
Creating a VRRP group and configuring a virtual IPv6 address ···································································· 131
Configuring router priority, preemptive mode and tracking function ···························································· 132
Configuring VF tracking······································································································································ 133
Configuring VRRP packet attributes ··················································································································· 134
Displaying and maintaining VRRP for IPv6
······································································································· 135