Setting The Time Interval For Advertisement Packets; Configuring Or Enabling Priority Preemption - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Virtual Router Redundancy Protocol
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m

Setting the time Interval for Advertisement Packets

The valid time range for an advertisement packet on an interface using IPv4 is between 1 and 255
seconds. The default value is 1 (one) second. If the switch has the primary IP address, this time must be
specified.
To set the time interval for advertisement packets for a virtual router using IPv4, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface vsan 10
switch(config-if)#
Step 3
switch(config-if)# vrrp 50
switch(config-if-vrrp)#
Step 4
switch(config-if-vrrp)# advertisement-interval 15
switch(config-if-vrrp)# no advertisement-interval
To set the time interval for advertisement packets for a virtual router using IPv6, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface vsan 12
switch(config-if)#
Step 3
switch(config-if)# vrrp ipv6 200
switch(config-if-vrrp-ipv6)#
Step 4
switch(config-if-vrrp-ipv6)#
advertisement-interval 150
switch(config-if-vrrp-ipv6)# no
advertisement-interval

Configuring or Enabling Priority Preemption

You can enable a higher priority backup virtual router to preempt the lower priority master virtual router.
Note If the virtual IP address is also the IP address for the interface, then preemption is implicitly applied.
Note The VRRP preemption is not supported on IP storage Gigabit Ethernet interfaces.
Cisco MDS 9000 Family CLI Configuration Guide
44-22
Chapter 44
Purpose
Enters configuration mode.
Configures a VSAN interface (VSAN 10).
Creates a virtual router.
Sets the interval time in seconds between
sending advertisement frames. The range
is 1 to 255.
Reverts to the default value (1 second).
Purpose
Enters configuration mode.
Configures a VSAN interface (VSAN 12).
Creates a virtual router.
Sets the interval time in centiseconds between
sending advertisement frames. The range is 100 to
4095. The default is 100 centiseconds.
Reverts to the default value (100 centiseconds).
OL-18084-01, Cisco MDS NX-OS Release 4.x
Configuring IP Services