Distributed Virtual Routing (DvR)

Note

Local hosts use ARP entries and remote hosts use host entries. For information on IP ARP scaling, see IP Unicast.

Table 1. DvR Maximums
Attribute	Product	Maximum number supported
Note: On the DvR leaf, you must enable the VRF scaling boot configuration flag if more than 24 VRFs are required in the DvR domain. Scaling of a VSP 4450 Series switch controls the scaling of the DvR domain it is in. For example, if a VSP 4450 Series switch is in a DvR domain with other platforms such as 5520 Series and 5420 Series, the scaling of the entire domain is limited to the scaling of the VSP 4450 Series. For VSP 4450 Series scaling information, see the VOSS Release Notes for VOSS Release 8.10.
DvR Virtual IP interfaces	5320 Series	48-port models: 248 16- and 24-port models: n/a
	5420 Series	247 with VIST 248 without VIST
	5520 Series	499 with vIST 500 without vIST 250 on boundary node
	5720 Series	999 with vIST 1,000 without vIST 500 on boundary node
	7520 Series	999 with vIST as interior node 1,000 without vIST as interior node 500 on boundary node
	7720 Series	999 with vIST as interior node 1,000 without vIST as interior node 500 on boundary node
DvR domains per SPB fabric	5320 Series	16
	5420 Series	16
	5520 Series	16
	5720 Series	16
	7520 Series	16
	7720 Series	16
Controller nodes per DvR domain with default route inject flag enabled Total number of Controllers per domain cannot exceed 8. Note: A DvR domain containing only Controller nodes and no Leaf nodes can have more than 8 Controllers per domain.	5320 Series	n/a
	5420 Series	n/a
	5520 Series	8
	5720 Series	8
	7520 Series	8
	7720 Series	8
Leaf nodes per DvR domain	5320 Series	250
	5420 Series	250
	5520 Series	250
	5720 Series	250
	7520 Series	250
	7720 Series	250
DvR enabled Layer 2 VSNs	5320 Series	48-port models: 248 16- and 24-port models: n/a
	5420 Series	247 with vIST 248 without vIST
	5520 Series	499 with vIST 500 without vIST 250 on boundary nodes
	5720 Series	999 with vIST 1,000 without vIST 500 on boundary nodes
	7520 Series	999 with vIST as interior node 1,000 without vIST as interior node 500 on boundary node
	7720 Series	999 with vIST as interior node 1,000 without vIST as interior node 500 on boundary node
DvR host route scaling per DvR domain (scaling number includes local as well as foreign hosts of the Layer 2 VSN that are members of the domain) If DvR Layer 2 VSNs span DvR domains, and all DvR Controllers have an IP interface on the Layer 2 VSNs, then the DvR host scaling is network-wide, as DvR Controllers will consume as many host routes as there are hosts across all DvR domains.	5320 Series	48-port models: 16,000 16- and 24-port models: n/a
	5420 Series	5420F Series models: 16,000 5420M Series models: 32,000
	5520 Series	48,000
	5720 Series	5720MW Series models: 64,000 5720MXW Series models: 96,000
	7520 Series	40,000
	7720 Series	40,000