3com S7906E Guide De Référence

 

1-9 

virtual-router-id: Virtual router ID or VRRP group number, in the range 1 to 255. 

timer delay delay-value: Sets preemption delay. The delay-value argument is in the range of 0 to 255 

seconds and defaults to 0 seconds. 

Use the vrrp  vrid preempt-mode command to enable preemption on the switch and configure its 

preemption delay in the specified VRRP group.  

Use the undo vrrp vrid preempt-mode command to disable preemption on the switch in the specified 

VRRP group. 

Use the undo vrrp vrid preempt-mode timer delay command to restore the default preemption delay, 

that is, zero seconds. 

The default mode is immediate preemption without delay. 

To avoid members in a VRRP group from changing their states frequently and make backups have 

enough time to collect information (such as routing information), each backup waits for a period of time 

(the preemption delay time) after it receives an advertisement with the priority lower than the local 

priority, then sends VRRP advertisements to start a new master election in the VRRP group and finally 

becomes the master. 

Note that before executing the command, you need to create a VRRP group on an interface and 

configure the virtual IP address of the VRRP group. 

# Enable preemption on the switch in VRRP group 1, and set the preemption delay to five seconds. 

<Sysname> system-view 

[Sysname] interface vlan-interface 2 

[Sysname-Vlan-interface2] vrrp vrid 1 virtual-ip 10.1.1.1 

[Sysname-Vlan-interface2] vrrp vrid 1 preempt-mode timer delay 5 

vrrp vrid virtual-router-id priority priority-value 

undo vrrp vrid virtual-router-id priority 

Interface view 

2: System level 

virtual-router-id: VRRP group number, in the range 1 to 255. 

priority-value: Priority value of the switch in the specified VRRP group, in the range 1 to 254, A higher 

number indicates a higher priority.