Distributed Virtual Routing

Table 1. Distributed Virtual Routing Controller product support
Feature	Product	Release introduced
DvR Controller	5320 Series	Not Supported
	5420 Series	Not Supported
	5520 Series	VOSS 8.2.5
	5720 Series	Fabric Engine 8.7
DvR Isolated Domain	5320 Series	Not Supported
	5420 Series	Not Supported
	5520 Series	Fabric Engine 8.8
	5720 Series	Fabric Engine 8.8
dvr-one-ip	5320 Series	Not Supported
	5420 Series	Not Supported
	5520 Series	VOSS 8.3
	5720 Series	Fabric Engine 8.7
Distributed Virtual Routing (DvR) In-band Management	5320 Series	Not Supported
	5420 Series	Not Supported
	5520 Series	Not Supported
	5720 Series	Fabric Engine 8.7
DvR-VRRP Coexistence Important: To use this functionality, you must upgrade the software on all DvR BEBs, including Leaf nodes, to at least the minimum software version to support this functionality.	5320 Series	Not Supported
	5420 Series	Not Supported
	5520 Series	Fabric Engine 8.8
	5720 Series	Fabric Engine 8.8

Table 2. Distributed Virtual Routing Leaf product support
Feature	Product	Release introduced
DvR Leaf	5320 Series	Fabric Engine 8.6 5320-48P-8XE and 5320-48T-8XE only
	5420 Series	VOSS 8.4
	5520 Series	VOSS 8.2.5
	5720 Series	Fabric Engine 8.7
DvR In-band Management	5320 Series	Fabric Engine 8.6 5320-48P-8XE and 5320-48T-8XE only
	5420 Series	VOSS 8.4
	5520 Series	VOSS 8.2.5
	5720 Series	Fabric Engine 8.7
Management I-SID Assignment to DvR Leaf	5320 Series	Fabric Engine 8.6 5320-48P-8XE and 5320-48T-8XE only
	5420 Series	VOSS 8.5
	5520 Series	VOSS 8.5
	5720 Series	Fabric Engine 8.7

Distributed Virtual Routing (DvR) is a technology for router redundancy in a Fabric deployment where IP subnets are stretched across multiple switches. DvR provides Default Gateway Redundancy and optimizes traffic flows to avoid traffic tromboning due to inefficient routing, thereby increasing the total routing throughput.

The topics in this section provide DvR concepts and configuration procedures.