Azure Route Server capacity

By default, an Azure Route Server is deployed with a capacity of two routing infrastructure units. This default deployment supports 4,000 connected VMs deployed in Route Server's virtual network and all peered virtual networks.

You can specify more routing infrastructure units to increase Route Server's capacity in increments of 1,000 VMs. This feature gives you the ability to secure upfront capacity without having to wait for the Route Server to scale out when more VMs are needed. The scale unit on which the Route Server is created becomes the minimum capacity.

When you increase Route Server's capacity, Route Server continues to support the number of VMs at its current capacity until the scale-out is complete. It may take up to 25 minutes for Route Server to scale out to more routing infrastructure units.

Note

Regardless of Route Server's capacity, Route Server can only accept a maximum of 10,000 routes from its connected resources (virtual networks, branches).

Edit Route Server capacity

Adjust Route Server's capacity when you need to support more virtual machines.

To add more Route Server capacity, go to the Configuration blade under Azure portal, and adjust the number of Routing infrastructure units using the dropdown, then Save.

Routing infrastructure unit table

Routing infrastructure unit Number of VMs
2 4,000
3 5,000
4 6,000
5 7,000
6 8,000
7 9,000
8 10,000
9 11,000
10 12,000
11 13,000
12 14,000
13 15,000
14 16,000
15 17,000
16 18,000
17 19,000
18 20,000
19 21,000
20 22,000
21 23,000
22 24,000
23 25,000
24 26,000
25 27,000
26 28,000
27 29,000
28 30,000
29 31,000
30 32,000
31 33,000
32 34,000
33 35,000
34 36,000
35 37,000
36 38,000
37 39,000
38 40,000
39 41,000
40 42,000
41 43,000
42 44,000
43 45,000
44 46,000
45 47,000
46 48,000
47 49,000
48 50,000

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