Administrator Guide

If are using VRRP version 2, you must configure the timer values in multiple of whole seconds. For example a timer value of 3 seconds or
300 centisecs are valid and equivalent. However, a time value of 50 centisecs is invalid because it not a multiple of 1 second. If you are
using VRRP version 3, you must configure the timer values in multiples of 25 centisecs.
If you are configured for VRRP version 2, the timer values must be in multiples of whole seconds. For example, timer value of 3 seconds or
300 centisecs are valid and equivalent. However, a timer value of 50 centisecs is invalid because it not is not multiple of 1 second.
If are using VRRP version 3, you must configure the timer values in multiples of 25 centisecs.
To change the advertisement interval in seconds or centisecs, use the following command. A centisecs is 1/100 of a second.
• Change the advertisement interval setting.
INTERFACE-VRID mode
advertise-interval seconds
The range is from 1 to 255 seconds.
The default is 1 second.
• For VRRPv3, change the advertisement centisecs interval setting.
INTERFACE-VRID mode
advertise-interval centisecs centisecs
The range is from 25 to 4075 centisecs in units of 25 centisecs.
The default is 100 centisecs.
The following example shows how to change the advertise interval using the advertise-interval command.
Dell(conf-if-te-1/1/1)#vrrp-group 111
Dell(conf-if-te-1/1/1-vrid-111)#advertise-interval 10
Dell(conf-if-te-1/1/1-vrid-111)#
The following example shows how to verify the advertise interval change using the show conf command.
Dell(conf-if-te-1/1/1-vrid-111)#show conf
!
vrrp-group 111
advertise-interval 10
authentication-type simple 7 387a7f2df5969da4
no preempt
priority 255
virtual-address 10.10.10.1
virtual-address 10.10.10.2
virtual-address 10.10.10.3
virtual-address 10.10.10.10
Setting VRRP Initialization Delay
When configured, VRRP is enabled immediately upon system reload or boot. You can delay VRRP initialization to allow the IGP and EGP
protocols to be enabled prior to selecting the VRRP Master. This delay ensures that VRRP initializes with no errors or conflicts. You can
configure the delay for up to 15 minutes, after which VRRP enables normally.
NOTE:
When you reload a node that contains VRRP configuration and is enabled for VLT, Dell Networking recommends
that you configure the reload timer by using the vrrp delay reload command to ensure that VRRP is functional.
Otherwise, when you reload a VLT node configured for VRRP, the local destination address is not seen on the reloaded
node causing suboptimal routing.
Set the delay timer on individual interfaces. The delay timer is supported on all physical interfaces, VLANs, and LAGs.
When you configure both CLIs, the later timer rules VRRP enabling. For example, if you set vrrp delay reload 600 and vrrp
delay minimum 300, the following behavior occurs:
• When the system reloads, VRRP waits 600 seconds (10 minutes) to bring up VRRP on all interfaces that are up and configured for
VRRP.
• When an interface comes up and becomes operational, the system waits 300 seconds (5 minutes) to bring up VRRP on that interface.
To set the delay time for VRRP initialization, use the following commands.
• Set the delay time for VRRP initialization on an individual interface.
INTERFACE mode
vrrp delay minimum seconds
1012
Virtual Router Redundancy Protocol (VRRP)