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Express Connect:Express Connect quotas

Last Updated:Dec 30, 2024

Alibaba Cloud sets default quotas on the cloud resources and API operations for each Alibaba Cloud account. You can view your adjustable quotas and apply for a quota adjustment based on your business requirements. This topic describes the quotas of Express Connect and their default values, as well as whether the quotas are adjustable.

Quotas are set on a per-region or per-account basis. Quotas are categorized into the following types:

  • General quotas: the limits on cloud resources that are available to an Alibaba Cloud account.

  • API rate limits: the limits on API calls that an Alibaba Cloud account can make within a specific period of time. API rate limits are also known as QPS limits.

  • Privileges: the permissions to use advanced features. Privileges are granted by Alibaba Cloud to an account.

Express Connect is subject to general quotas, API rate limits, and privileges. You can apply for increases on some of the quotas. You can view and manage quotas in Alibaba Cloud Quota Center or in the Express Connect console. For more information about how to manage quotas, see Manage quotas.

General quotas

The following table lists the general quotas of Express Connect.

Note

This topic provides the default quota values for the service, and the actual default quota values may be different. The values in the Alibaba Cloud service console are the actual default quotas applied to your Alibaba Cloud account. A value of "0" or "-" indicates that the quota is unavailable by default.

Category

Name/ID

Description

Default value

Adjustable

Express Connect

ec_quota_pconn_count_per_ap

Maximum number of Express Connect circuits that can be connected to an access point by using an Alibaba Cloud account

2

Yes

ec_quota_free_pconn_count

Maximum number of unpaid Express Connect circuits that can be created

10

No

ec_quota_same_acount_vbr_per_pconn

Maximum number of VBRs that can be created for each Express Connect circuit within the same account.

5

To increase the quota, submit a ticket.

VBR

ec_quota_bgp_group_max_route_entry_num

Maximum number of routes that each BGP peer in a BGP group can receive

Note

When the number of BGP routes reaches the upper limit, no more BGP routes are advertised. BGP routes are counted only if the following conditions are met:

  • The routes are advertised to the VBR.

  • The requests for advertising the routes are not sent by Alibaba Cloud resources.

110

Yes

ec_quota_vbr_per_bgp_peer

Maximum number of BGP peers that are supported by a VBR

8

Yes

ec_quota_bgp_allow_prefixes_num

Maximum number of route prefixes that are supported by a VBR

20

Yes

ec_quota_vbr_bgp_num

Maximum number of BGP CIDR blocks that can be advertised on a VBR

10

Yes

ec_quota_vbr_route_entry

Maximum number of routes that can be retained by a VBR

48

Yes

can_associate_pconn_to_vbr

The privilege of binding multiple Express Connect circuits to a single VBR for equal-cost multi-path (ECMP) link aggregation

-

Yes

Peering connection

ec_quota_vbr_ri_num

Maximum number of peering connections that can be established on a VBR

10

Yes

ec_quota_vroute_ri_num

Maximum number of peering connections that can be established in each VPC

10

Yes

ec_quota_user_ri_num

Maximum number of peering connections, including VPC and VBR connections, that can be established by using an Alibaba Cloud account

10

Yes

Quality of service (QoS) policy

ec_max_qos_num

Maximum number of QoS policies that can be created by each user

10

Yes

ec_max_qos_queue_num

Maximum number of queues that can be created in each QoS policy

3

Yes

ec_max_qos_queue_rule_num

Maximum number of traffic classification rules that can be created for a queue

5

Yes

ec_pconn_can_enable_qos

Allow ports that have shared resources to use the QoS feature

0

Yes

ec_uid_can_enable_qos

Allow users to use the QoS feature

Note

If you cannot view the quotas on the Quota Management page in the Quota Center console or in the Express Connect console, contact your account manager.

1

No

Express Connect Router (ECR)

ecr_vbr_count_per_ecr

Maximum number of VBRs that can be associated with an ECR

50

To request a quota increase, submit a ticket.

ecr_tr_count_per_ecr

Maximum number of transit routers that can be associated with each ECR

3

ecr_vpc_count_per_ecr

Maximum number of VPCs that can be associated with each ECR

30

Yes

ecr_allowed_prefix_count_per_association

Maximum number of CIDR blocks that can be dynamically advertised by a VPC or transit router after the VPC or transit router is associated with an ECR

20

To request a quota increase, submit a ticket.

ecr_bandwidth_cross_region_overseas

The inter-region bandwidth for an ECR that resides in a region outside the Chinese mainland

Cloud Data Transfer (CDT) sets the following protective bandwidth limits on cross-region or cross-border connections based on the regions between which the connections are created:

  • 100 Mbit/s: for connections that are created between regions outside the Chinese mainland

  • 1000 Mbit/s: for connections that are created between regions within the Chinese mainland

  • 100 Mbit/s: for connections that are created between regions in the Chinese mainland and outside the Chinese mainland

Note

If you want to create multiple connections, the data transfer fees are multiplied by N based on the single-connection data transfer fees. N indicates the number of connections, which is generally four.

Yes

ecr_bandwidth_cross_region_domestic

The cross-region bandwidth for an ECR that resides in a region in the Chinese mainland

To request a quota increase, submit a ticket.

ecr_bandwidth_cross_border

The cross-border bandwidth for an ECR

ecr_count_per_user

Maximum number of ECRs that can be created by each account

20

ec_ecr_can_use_connectlink

Allow users to connect data centers by using an ECR

0

Yes

Failure drill

ec_max_testjob_resource_num

Maximum number of resources that can be added to a failure drill task

16

No

API rate limits

The following table lists the API rate limits of Express Connect.

Quota item

Quota

Adjust the quota

API rate limits

On the API Rate Limits page of the Quota Center console, view the rate limits of Express Connect API operations.

N/A

Privileges

The default value of a privilege is 0, indicating that the corresponding advanced feature is unavailable. You need to apply for the privilege before you can use the feature. The following table lists the privileges of Express Connect.

Privilege

Description

Support authorization

Allow VBR to load CEN or VPC across accounts

A VBR can be attached to a CEN instance or connect to a VPC across accounts.

Yes

Shared ports below 1G can be purchased

Allow users to purchase shared ports with a speed of less than 1 Gbit/s

Note

Only Alibaba Cloud partners can apply for the privilege.

Yes

Apply for ECR

Allow users to use ECRs

Yes