Distributed Virtual Routing (DvR)

Note

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.

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

1000 without vIST

500 on boundary node

7520 Series

999 with vIST as interior node

1000 without vIST as interior node

500 on boundary node

7720 Series

999 with vIST as interior node

1000 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

1000 without vIST

500 on boundary nodes

7520 Series

999 with vIST as interior node

1000 without vIST as interior node

500 on boundary node

7720 Series

999 with vIST as interior node

1000 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

16,000 for 5420F Series models

32,000 for 5420M Series models

5520 Series

48,000

5720 Series

64,000 for 5720MW Series models

96,000 for 5720MXW Series models

7520 Series

40,000

7720 Series

40,000