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51-10
Cisco MDS 9000 Family Fabric Manager Configuration Guide
OL-17256-03, Cisco MDS NX-OS Release 4.x
Chapter 51 Configuring IP Services
Virtual Router Redundancy Protocol
In Figure 51-6, the fabric example has two virtual router groups (VR1 and VR 2) because a virtual router
cannot span across different types of interfaces. In both switch 1 and switch 2, the Ethernet interface is
in VR 1 and the FC interface is in VR 2. Each virtual router is uniquely identified by the VSAN interface
and the VR ID.
Figure 51-6 Redundant Gateway
Configuring VRRP
This section describes how to configure VRRP and includes the following topics:
• Adding and Deleting Virtual Router, page 51-10
• Virtual Router Initiation, page 51-11
• Adding Virtual Router IP Addresses, page 51-11
• Setting the Priority for the Virtual Router, page 51-11
• Setting the time Interval for Advertisement Packets, page 51-11
• Configuring or Enabling Priority Preemption, page 51-11
• Setting Virtual Router Authentication, page 51-12
• Tracking the Interface Priority, page 51-12
Adding and Deleting Virtual Router
All VRRP configurations should be replicated across switches in a fabric that runs VRRP.
Note The total number of VRRP groups that you can configure on a Gigabit Ethernet port, including main
interfaces and subinterfaces, cannot exceed seven. This limitation applies to both IPv4 and IPv6 groups.
IP
network
Switch 3
Switch 4
Switch 5
FC Fabric
VR1
VR2
Link 5
Management
appliance
IP links
FC links
Virtual Router with
unique VR IP and
VR MAC
Switch 2
Switch 1
Redundant Gateway
79546
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