expressroute-limits.md

title	description	services	author	ms.service	ms.topic	ms.date	ms.author	ms.custom
include file	include file	expressroute	duongau	azure-expressroute	include	10/09/2023	duau	include file

Resource	Limit
ExpressRoute circuits per subscription	50 (Submit a support request to increase limit)
ExpressRoute circuits per region per subscription, with Azure Resource Manager	10
Maximum number of circuits in the same peering location linked to the same virtual network	4
Maximum number of circuits in different peering locations linked to the same virtual network	Standard / ERGw1Az - 4 High Perf / ERGw2Az - 8 Ultra Performance / ErGw3Az - 16
Maximum number of IPs for ExpressRoute provider circuit with Fastpath	25,000
Maximum number of IPs for ExpressRoute Direct 10 Gbps with Fastpath	100,000
Maximum number of IPs for ExpressRoute Direct 100 Gbps with Fastpath	200,000
Maximum number of flows for ExpressRoute Traffic Collector	300,000

Route advertisement limits

Resource	Local / Standard SKU	Premium SKU
Maximum number of IPv4 routes advertised to Azure private peering from on-premises	4,000	10,000
Maximum number of IPv6 routes advertised to Azure private peering from on-premises	100	100
Maximum number of IPv4 routes advertised from Azure private peering from the VNet address space to ExpressRoute virtual network gateway	1,000	1,000
Maximum number of IPv6 routes advertised from Azure private peering from the VNet address space to ExpressRoute virtual network gateway	100	100
Maximum number of IPv4 routes advertised to Microsoft peering from on-premises	200	200
Maximum number of IPv6 routes advertised to Microsoft peering from on-premises	200	200

Virtual networks links allowed for each ExpressRoute circuit limit

Circuit size	Local / Standard SKU	Premium SKU
50 Mbps	10	20
100 Mbps	10	25
200 Mbps	10	25
500 Mbps	10	40
1 Gbps	10	50
2 Gbps	10	60
5 Gbps	10	75
10 Gbps	10	100
40 Gbps*	10	100
100 Gbps*	10	100

*100-Gbps ExpressRoute Direct Only

Note

Global Reach connections count against the limit of virtual network connections per ExpressRoute Circuit. For example, a 10 Gbps Premium Circuit would allow for 5 Global Reach connections and 95 connections to the ExpressRoute Gateways or 95 Global Reach connections and 5 connections to the ExpressRoute Gateways or any other combination up to the limit of 100 connections for the circuit.

ExpressRoute gateway performance limits

[!INCLUDE expressroute-gateway-preformance-include]