AWS Direct Connect quotas

The following table lists the quotas related to AWS Direct Connect. Unless indicated otherwise, you can request an increase for any of these limits using the AWS Direct Connect Limits form.

Component	Quota	Comments
Private or public virtual interfaces per AWS Direct Connect dedicated connection	50	This limit cannot be increased.
Transit virtual interfaces per AWS Direct Connect dedicated connection	1	This limit cannot be increased.
Private, public, or transit virtual interfaces per AWS Direct Connect hosted connection1	1	This limit cannot be increased.
Active AWS Direct Connect connections per Region per account	10
Number of virtual interfaces per Link Aggregation Group (LAG)	50
Routes per Border Gateway Protocol (BGP) session on a private virtual interface or transit virtual interface If you advertise more than 100 routes over the BGP session, the BGP session will go into an idle state with the BGP session DOWN.	100	This limit cannot be increased.
Routes per Border Gateway Protocol (BGP) session on a public virtual interface	1,000	This limit cannot be increased.
Dedicated connections per link aggregation group (LAG)	4 when the port speed is less than 100G 2 when the port speed is 100G
Link aggregation groups (LAGs) per Region	10
AWS Direct Connect gateways per account	200
Virtual private gateways per AWS Direct Connect gateway	10	This limit cannot be increased.
Transit gateways per AWS Direct Connect gateway	3	This limit cannot be increased.
Virtual interfaces (private or transit) per AWS Direct Connect gateway	30
Number of prefixes from on-premises to AWS on a transit virtual interface	100	This limit cannot be increased.
Number of prefixes per AWS Transit Gateway from AWS to on-premise on a transit virtual interface	20	This limit cannot be increased.

AWS Direct Connect supports these port speeds over single-mode fiber: 1 Gbps: 1000BASE-LX (1310 nm), 10 Gbps: 10GBASE-LR (1310 nm) and 100Gbps: 100GBASE-LR4.

¹: You cannot create a transit virtual interface on a hosted connection with a capacity less than 1Gbps.

BGP quotas

The following are BGP quotas. The BGP timers negotiate down to the lowest value between the routers. The BFD intervals are defined by the slowest device.

• Default hold timer: 90 seconds

• Minimum hold timer: 3 seconds

  A hold value of 0 is not supported.

• Default keepalive timer: 30 seconds

• Minimum keepalive timer: 1 second

• Graceful restart timer: 120 seconds

  We recommend that you do not configure graceful restart and BFD at the same time.

• BFD liveness detection minimum interval: 300 ms

• BFD minimum multiplier: 3

Load balance considerations

If you want to use load balancing with multiple public VIFs, all the VIFs must be in the same Region.