| author | ms.author | ms.service | ms.topic | ms.date |
|---|---|---|---|---|
halkazwini |
halkazwini |
route-server |
include |
09/18/2023 |
| Resource | Limit |
|---|---|
| Number of BGP peers | 8 |
| Number of routes each BGP peer can advertise to Azure Route Server 1 | 1,000 |
| Number of VMs in the virtual network (including peered virtual networks) that Azure Route Server can support 2 | 4,000 |
| Number of virtual networks that Azure Route Server can support | 500 |
| Number of total on-premises and Azure Virtual Network prefixes that Azure Route Server can support | 10,000 |
1 If your NVA advertises more routes than the limit, the BGP session gets dropped.
2 The number of VMs that Azure Route Server can support isn’t a hard limit and it depends on the availability and performance of the underlying infrastructure.
Note
The total number of routes advertised from VNet address space and Route Server towards ExpressRoute circuit, when Branch-to-branch enabled, must not exceed 1,000. For more information, see Route advertisement limits of ExpressRoute.