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Configuring DLDP ························································································································································· 1
Overview ············································································································································································ 1
Basic concepts ·························································································································································· 2
How DLDP works ······················································································································································ 3
Configuration restrictions and guidelines ······················································································································· 5
DLDP configuration task list ·············································································································································· 5
Enabling DLDP ··································································································································································· 6
Setting the interval to send advertisement packets ········································································································ 6
Setting the DelayDown timer ··········································································································································· 6
Setting the port shutdown mode ······································································································································ 7
Configuring DLDP authentication ····································································································································· 7
Displaying and maintaining DLDP ··································································································································· 7
DLDP configuration examples ·········································································································································· 8
Automatically shutting down unidirectional links ·································································································· 8
Manually shutting down unidirectional links ······································································································ 11
Configuring VRRP ······················································································································································· 16
Overview ········································································································································································· 16
VRRP standard mode ····················································································································································· 17
Router priority in a VRRP group ··························································································································· 17
Preemption ····························································································································································· 17
Authentication method ·········································································································································· 18
VRRP timers ···························································································································································· 18
Master election ······················································································································································ 19
VRRP application ··················································································································································· 19
VRRP load balancing mode ·········································································································································· 20
Virtual MAC address assignment ························································································································ 21
Virtual forwarder ··················································································································································· 22
Protocols and standards ················································································································································ 24
Configuring IPv4 VRRP ·················································································································································· 24
IPv4 VRRP configuration task list ·························································································································· 25
Specifying an IPv4 VRRP operating mode ·········································································································· 25
Specifying the IPv4 VRRP version ························································································································ 25
Creating a VRRP group and assigning a virtual IP address ············································································· 26
Configuring the router priority and preemptive mode ······················································································ 26
Configuring IPv4 VRRP packet attributes ············································································································ 27
Enabling SNMP notifications for VRRP ················································································································ 28
Disabling an IPv4 VRRP group ····························································································································· 28
Displaying and maintaining IPv4 VRRP ··············································································································· 29
Configuring IPv6 VRRP ·················································································································································· 29
IPv6 VRRP configuration task list ·························································································································· 29
Specifying an IPv6 VRRP operating mode ·········································································································· 29
Creating a VRRP group and assigning a virtual IPv6 address ········································································· 30
Configuring the router priority and preemptive mode ······················································································ 31
Configuring IPv6 VRRP packet attributes ············································································································ 31
Disabling an IPv6 VRRP group ····························································································································· 32
Displaying and maintaining IPv6 VRRP ··············································································································· 32
IPv4 VRRP configuration examples ······························································································································· 33
Single VRRP group configuration example ········································································································· 33
