Command Reference Guide

N8406-023 1Gb Intelligent L3 Switch Command Reference Guide (AOS) 136
Table 152 VRRP Configuration Menu options
Command
Description
preem disable|enable
Enables or disables master preemption. When enabled, if this virtual router is in
backup mode but has a higher priority than the current master, this virtual router
will preempt the lower priority master and assume control. Note that even when
preem is disabled, this virtual router will always preempt any other master if this
switch is the owner (the IP interface address and virtual router addr are the
same). By default, this option is enabled.
ena
Enables this virtual router.
dis
Disables this virtual router. This is the default.
del
Deletes this virtual router from the switch configuration.
cur
Displays the current configuration information for this virtual router.
VRRP Virtual Router Priority Tracking configuration
Command: /cfg/l3/vrrp/vr <1-255>/track
[VRRP Virtual Router 1 Priority Tracking Menu]
vrs - Enable/disable tracking master virtual routers
ifs - Enable/disable tracking other interfaces
ports - Enable/disable tracking VLAN switch ports
cur - Display current VRRP virtual router configuration
This menu is used for modifying the priority system used when electing the master router from a pool of virtual
routers. Various tracking criteria can be used to bias the election results. Each time one of the tracking criteria is
met, the priority level for the virtual router is increased by an amount defined through the VRRP Tracking Menu.
Criteria are tracked dynamically, continuously updating virtual router priority levels when enabled. If the virtual
router preemption option is enabled, this virtual router can assume master routing authority when its priority level
rises above that of the current master.
Some tracking criteria (vrs, ifs, and ports below) apply to standard virtual routers, otherwise called ―virtual
interface routers‖. A virtual server router is defined as any virtual router whose IP address (addr) is the same as
any configured virtual server IP address.
The following table describes the Virtual Router Priority Tracking Configuration Menu options.
Table 153 Virtual Router Priority Tracking Configuration Menu options
Command
Description
vrs disable|enable
When enabled, the priority for this virtual router will be increased for each virtual
router in master mode on this switch. This is useful for making sure that traffic for
any particular client/server pairing are handled by the same switch, increasing
routing and load balancing efficiency. This command is disabled by default.
ifs disable|enable
When enabled, the priority for this virtual router will be increased for each other IP
interface active on this switch. An IP interface is considered active when there is
at least one active port on the same VLAN. This helps elect the virtual routers with
the most available routes as the master. This command is disabled by default.
ports disable|enable
When enabled, the priority for this virtual router will be increased for each active
port on the same VLAN. A port is considered ―active‖ if it has a link and is
forwarding traffic. This helps elect the virtual routers with the most available ports
as the master. This command is disabled by default.
cur
Displays the current configuration for priority tracking for this virtual router.
VRRP Virtual Router Group configuration
Command: /cfg/l3/vrrp/group