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 the VSP 4450 Series 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 VSP 7200 Series and VSP 8000 Series, the scaling of the entire domain is limited to the scaling of the VSP 4450 Series.
DvR Virtual IP interfaces	5420 Series	247 with VIST 248 without VIST
	5520 Series	499 with vIST 500 without vIST
	VSP 4450 Series	501 with vIST 502 without vIST
	VSP 4900 Series	499 with vIST 500 without vIST
	VSP 7200 Series	501 with vIST 502 without vIST
	VSP 7400 Series	999 with vIST 1,000 without vIST
	VSP 8000 Series	VSP 8404C = 499 with vIST 500 without vIST Other VSP 8000 Series platforms = 501 with vIST 502 without vIST
	XA1400 Series	n/a
DvR domains per SPB fabric	5420 Series	16
	5520 Series	16
	VSP 4450 Series	16
	VSP 4900 Series	16
	VSP 7200 Series	16
	VSP 7400 Series	16
	VSP 8000 Series	16
	XA1400 Series	n/a
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.	5420 Series	n/a
	5520 Series	8
	VSP 4450 Series	n/a
	VSP 4900 Series	8
	VSP 7200 Series	8
	VSP 7400 Series	8
	VSP 8000 Series	8
	XA1400 Series	n/a
Leaf nodes per DvR domain	5420 Series	250
	5520 Series	250
	VSP 4450 Series	250
	VSP 4900 Series	250
	VSP 7200 Series	250
	VSP 7400 Series	250
	VSP 8000 Series	250
	XA1400 Series	n/a
DvR enabled Layer 2 VSNs	5420 Series	247 with vIST 248 without vIST
	5520 Series	499 with vIST 500 without vIST
	VSP 4450 Series	501 with vIST 502 without vIST
	VSP 4900 Series	501 with vIST 502 without vIST
	VSP 7200 Series	501 with vIST 502 without vIST
	VSP 7400 Series	999 with vIST 1,000 without vIST
	VSP 8000 Series	501 with vIST 502 without vIST
	XA1400 Series	n/a
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.	5420 Series	16,000 for 5420F Series models
	5420 Series	32,000 for 5420M Series models
	5520 Series	48,000
	VSP 4450 Series	6,000
	VSP 4900 Series	32,000
	VSP 7200 Series	32,000
	VSP 7400 Series	40,000
	VSP 8000 Series	32,000
	XA1400 Series	n/a