Time Interval For Advertisement Packets; Priority Preemption - HP Cisco MDS 9020 - Fabric Switch 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

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

Priority Preemption

You can enable a higher priority backup virtual router to preempt the lower priority master virtual router.
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.
Note
Cisco MDS 9000 Family CLI Configuration Guide
43-22
Chapter 43
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-16184-01, Cisco MDS SAN-OS Release 3.x
Configuring IP Services