Virtual Router Initiation; Virtual Router Ip Address Addition - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

The 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 .

Virtual Router Initiation

By default, a virtual router is always disabled. VRRP can be configured only if this state is enabled. Be
sure to configure at least one IP address before attempting to enable a VR.
To enable or disable a virtual router, follow these steps:
Command
Step 1
switch(config-if-vrrp)# no shutdown
switch(config-if-vrrp)# shutdown

Virtual Router IP Address Addition

One virtual router IP address can be configured for a virtual router. If the configured IP address is the
same as the interface IP address, this switch automatically owns the IP address.
According to the VRRP specification, the master VRRP router drops the packets addressed to the virtual
router's IP address because the virtual router is only intended as a next-hop router to forward packets. In
MDS switches however, some applications require that packets addressed to virtual router's IP address
be accepted and delivered to them. By using the secondary option to the virtual router IP address, the
VRRP router will accept these packets when it is the master.
To configure an IP address for a virtual router, follow these steps:
Command
Step 1
switch# config t
Step 2
switch(config)# interface vsan 1
switch(config-if)#
Step 3
switch(config-if)# interface ip address
10.0.0.12 255.255.255.0xi
Step 4
switch(config-if)# vrrp 250
switch(config-if-vrrp)#
Step 5
switch(config-if-vrrp)# address 10.0.0.10
switch(config-if-vrrp)# no address 10.0.0.10
Cisco MDS 9000 Family Configuration Guide
36-18
Chapter 36
Purpose
Enables VRRP configuration.
Disables VRRP configuration.
Purpose
Enters configuration mode.
Configures a VSAN interface (VSAN 1).
Configures an IP address. The IP address must
be configured before the VRRP is added.
Creates VR ID 250.
Configures the IP address (10.0.0.10) for the
selected VR.
This IP address should be in the same
Note
subnet as the IP address of the interface.
Removes the IP address (10.0.0.10) for the
selected VR.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
Configuring IP Services