User's Manual

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to the default setting.
In simple-text authentication mode, the authentication character string is in the message as clear code and is
forwarded out. The receiver checks the authentication character string in the message to see whether it
matches the locally configured authentication character string. The authentication character string has eight
characters at most.
By default, the authentication mode of VRRP is no-authen.
70.3.3 Configuring VRRP Description
Run the following commands in vlan interface configuration mode.
Command Purpose
vrrp
vrid
description
WORD Configures VRRP description information
no vrrp
vrid
description
Deletes VRRP description information
VRRP description information, which is used for stating the usage of local VRRP.
By default, VRRP has no description information.
70.3.4 Configuring VRRP Priority Preemption
Run the following commands in vlan interface configuration mode.
Command Purpose
vrrp
vrid
preempt [delay
second
]
Configures VRRP priority preemption
no vrrp
vrid
preempt [delay]
Resumes the default VRRP priority
preemption mode.
The priority preemption is effective only to the backup SWITCH. After the backup SWITCH receives the
announce message from the master SWITCH, it will examine the priority of the master SWITCH. If the priority
level of the master SWITCH is lower than the locally configured priority level and the backup SWITCH is
configured with priority preemption, the backup SWITCH will leap from the backup state to the master state
and send the announce message to the outside. Otherwise, the backup SWITCH remains in the backup
state.
In default state, the authentication mode of VRRP is no-authen.
70.3.5 Configuring VRRP Protocol Packet MAC Address
Run the following commands in vlan interface configuration mode.
Command Purpose
vrrp
vrid
source-mac-use-system
Configures VRRP group to forward
packets with system mac address
no vrrp
vrid
source-mac-use-system
Configures VRRP group to forward
packets with protocol mac address
By default, VRRP protocol packet forward source address with protocol mac address; after the command is
configured, VRRP protocol packet forwards the system mac address as the source address.