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Vrrp Functionality - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Mds 9000 family
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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 .
The Virtual Router Redundancy Protocol
Cisco MDS 9000 Family switches are compliant with RFC 2338 standards for Virtual Router
Redundancy Protocol (VRRP) features. This section provides details on the VRRP feature.
VRRP Features
VRRP provides a redundant alternative path to the gateway switch, which has connectivity to the NMS.
VRRP has the following characteristics and advantages:

VRRP Functionality

In
Figure
have IP address to VRRP mapping configured. The other switches set switch A as the default gateway.
If switch A fails, the other switches don't have to change the routing configurations as switch B
automatically becomes the master and takes over the function of a gateway.
Figure 36-6
1.1.1.10
Switch A
Switch D
Cisco MDS 9000 Family Configuration Guide
36-16
VRRP is a restartable application.
When a VRRP master fails, the VRRP backup takes over within three times the advertisement time.
VRRP over Ethernet, VRRP over VSAN, and Fibre Channel functions are implemented as defined
in RFC 2338.
A virtual router is mapped to each VSAN and Ethernet interface with its unique virtual router IP,
virtual router MAC, and VR ID.
VR IDs can be reused in multiple VSANs with a different virtual router IP mapping.
Up to 255 virtual router groups can be assigned in each VSAN.
VRRP security provides three options, including no authentication, simple text authentication, and
MD5 authentication.
36-6, switch A is the VRRP master and switch B is the VRRP backup switch. Both switches
VRRP Functionality
NMS
Ethernet
connection
1.2.11.1
VRRP
VSAN 1
1.2.11.4
NMS
1.1.30
Switch B
1.2.11.2
Switch C
1.2.11.3
Chapter 36
Configuring IP Services
OL-6973-03, Cisco MDS SAN-OS Release 2.x

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