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.
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 | |
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:
| 110 | |
ec_quota_vbr_per_bgp_peer | Maximum number of BGP peers that are supported by a VBR | 8 | ||
ec_quota_bgp_allow_prefixes_num | Maximum number of route prefixes that are supported by a VBR | 20 | ||
ec_quota_vbr_bgp_num | Maximum number of BGP CIDR blocks that can be advertised on a VBR | 10 | ||
ec_quota_vbr_route_entry | Maximum number of routes that can be retained by a VBR | 48 | ||
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 | - | ||
Peering connection | ec_quota_vbr_ri_num | Maximum number of peering connections that can be established on a VBR | 10 | |
ec_quota_vroute_ri_num | Maximum number of peering connections that can be established in each VPC | 10 | ||
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 | ||
Quality of service (QoS) policy | ec_max_qos_num | Maximum number of QoS policies that can be created by each user | 10 | |
ec_max_qos_queue_num | Maximum number of queues that can be created in each QoS policy | 3 | ||
ec_max_qos_queue_rule_num | Maximum number of traffic classification rules that can be created for a queue | 5 | ||
ec_pconn_can_enable_qos | Allow ports that have shared resources to use the QoS feature | 0 | ||
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 | ||
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:
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. | ||
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 | ||
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. | |
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. | |
Apply for ECR | Allow users to use ECRs |