ii
Configuring DLDP authentication ····················································································································· 40
Display and maintenance commands for DLDP ······························································································ 41
DLDP configuration examples ························································································································· 41
Example: Configuring the auto port shutdown mode ··············································································· 41
Example: Configuring the manual port shutdown mode ·········································································· 44
Configuring VRRP ······················································································· 49
About VRRP ····················································································································································· 49
VRRP standard mode ······································································································································ 50
VRRP networking ····································································································································· 50
Virtual IP address and IP address owner ································································································· 50
Router priority in a VRRP group ··············································································································· 50
Preemption ··············································································································································· 50
Authentication method ····························································································································· 51
VRRP timers ············································································································································ 51
Master election ········································································································································· 52
VRRP tracking ·········································································································································· 52
VRRP application ····································································································································· 52
VRRP load balancing mode ····························································································································· 54
Virtual MAC address assignment ············································································································· 54
Virtual forwarder ······································································································································· 56
Protocols and standards ·································································································································· 58
Configuring IPv4 VRRP···································································································································· 58
Restrictions and guidelines: IPv4 VRRP configuration ············································································ 58
IPv4 VRRP tasks at a glance ··················································································································· 58
Specifying an IPv4 VRRP operating mode ······························································································ 58
Specifying the IPv4 VRRP version ··········································································································· 59
Configuring an IPv4 VRRP group ············································································································ 59
Specifying an IPv4 VRRP control VLAN ·································································································· 61
Configuring IPv4 VRRP packet attributes ································································································ 62
Configuring VF tracking ···························································································································· 63
Enabling SNMP notifications for VRRP ···································································································· 64
Display and maintenance commands for IPv4 VRRP ·············································································· 64
Configuring IPv6 VRRP···································································································································· 64
Restrictions and guidelines: IPv6 VRRP configuration ············································································ 64
IPv6 VRRP tasks at a glance ··················································································································· 64
Specifying an IPv6 VRRP operating mode ······························································································ 65
Configuring an IPv6 VRRP group ············································································································ 65
Specifying an IPv6 VRRP control VLAN ·································································································· 67
Configuring VF tracking ···························································································································· 68
Configuring IPv6 VRRP packet attributes ································································································ 69
Display and maintenance commands for IPv6 VRRP ·············································································· 70
IPv4 VRRP configuration examples ················································································································· 70
Example: Configuring a single VRRP group ···························································································· 70
Example: Configuring multiple VRRP groups ·························································································· 73
Example: Configuring VRRP load balancing···························································································· 75
IPv6 VRRP configuration examples ················································································································· 83
Example: Configuring a single VRRP group ···························································································· 83
Example: Configuring multiple VRRP groups ·························································································· 86
Example: Configuring VRRP load balancing···························································································· 88
Troubleshooting VRRP ···································································································································· 97
An error prompt is displayed ···················································································································· 97
Multiple masters appear in a VRRP group ······························································································· 97
Fast VRRP state flapping ························································································································· 98
Configuring the Layer 3 connection keepalive feature ································· 99
About Layer 3 connection keepalive ················································································································ 99
Restrictions and guidelines: Layer 3 connection keepalive configuration ························································ 99
Layer 3 connection keepalive tasks at a glance ······························································································ 99
Configuring the Layer 3 connection keepalive feature ··················································································· 100
Display and maintenance commands for Layer 3 connection keepalive ······················································· 100
Layer 3 connection keepalive configuration examples ·················································································· 100
