Preempt; Priority - Accton Technology ES4710BD User Manual

Parameters: <string> stands for the VRRP authentication string.
Default: There is no authentication string by default.
Command mode: Interface Mode
Usage Guide: This command keeps the VRRP standby cluster from the disturbance of unauthorized
members, all switches in the same standby cluster should have the same authentication string if
Simple String mode applies.
Example: Setting the authentication string to "public"
Switch(config)#interface vlan 1
Switch(Config-If-Vlan1)# ip vrrp authentication string public
21.1.2.8

preempt

Commands: preempt-mode{true| false}
Function: Configures the preemptive mode for VRRP
Parameters: N/A.
Command mode: VRRP protocol configuration mode
Default: Preemptive mode is set by default
Usage Guide: If a router (or L3 Ethernet switch) requiring high priority needs to preemptively
become the active router (or L3 Ethernet switch), the preemptive mode should be enabled.
Example: Setting non-preemptive VRRP mode
Switch(Config-Router-Vrrp)# preempt-mode false
21.1.2.9

priority

Commands: priority <value>
no priority
Function: Configures VRRP priority; the "no priority" restores the default value 100. Priority is
always 255 for IP Owner.
Parameters: < value> is the priority value, ranging from 1 to 255.
Default: The priority of all backup routers (or L3 Ethernet switch) in a Standby cluster is 100; the
Master router (or L3 Ethernet switch) in all Standby cluster is always 255.
Command mode: VRRP protocol configuration mode
Usage Guide: Priority determines the ranking of a router (or L3 Ethernet switch) in a Standby
cluster, the higher priority the more likely to become the Master. When a router (or L3 Ethernet
switch) is configured as Master dummy IP address, its priority is always 255 and does not allow
modification. When 2 or more routers (or L3 Ethernet switch) with the same priority value present
in a Standby cluster, the router (or L3 Ethernet switch) with the greatest VLAN interface IP address
becomes the Master.
Example: Setting VRRP priority to 150.
EES4710BD 10 Slots L2/L3/L4 Chassis Switch
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