Technical data

BLADE OS 5.0 Command Reference
298
 Chapter 6: The Configuration Menu BMD00142, November 2009
prio <1-254>
Defines the election priority bias for this virtual server. This can be any integer between 1 and
254. The default value is 100.
During the master router election process, the routing device with the highest virtual router
priority number wins. If there is a tie, the device with the highest IP interface address wins. If
this virtual router’s IP address (addr) is the same as the one used by the IP interface, the
priority for this virtual router will automatically be set to 255 (highest).
When priority tracking is used (/cfg/l3/vrrp/track or
/cfg/l3/vrrp/vr #/track), this base priority value can be modified according to a
number of performance and operational criteria.
adver <1-255>
Defines the time interval between VRRP master advertisements. This can be any integer
between 1 and 255 seconds. The default value is 1.
predelay <0-255>
Configures the preempt delay interval. This timer is configured on the VRRP Owner and
prevents the switch from transitioning back to Master state until the preempt delay interval
has expired. Ensure that the interval is long enough for OSPF or other routing protocols to
converge.
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.
fadver e|d
Enables or disables Fast Advertisements. When enabled, the VRRP master advertisements
interval is calculated in units of centi-seconds, instead of seconds. For example, if adver is
set to 1 and fadver is enabled, master advertisements are sent every .01 second.
When you disable fast advertisement, the advertisement interval is set to the default value
of 1 second. To support Fast Advertisements, set the interval between 20-100 centi-seconds.
ena
Enables this virtual router.
Table 178 VRRP Virtual Router Options
Command Syntax and Usage