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    Edge Network Acceleration:Edge Private Network instance

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    Edge Network Acceleration:Edge Private Network instance

    Last Updated:Aug 22, 2025

    Use the Edge Private Network (EPN) service of Edge Network Acceleration (ENA) to connect private network among enterprise data centers and intranets, Alibaba Cloud central Region Virtual Private Cloud (VPC), and Edge Node Service (ENS).

    Network topology

    image

    Procedure

    Step 1: Create an EPN instance

    1. Log on to the ENA console, and choose Business Instances > EPN Instances.

    2. On the Edge Private Network Instance page, click Create EPN Instance and configure the following parameters.

      Item

      Description

      Name

      The name of the instance.

      Region

      Select Outside Chinese Mainland.

      Note

      EPN service does not support cross-border services between regions within and outside the Chinese mainland.

      Description

      The instance description.

    3. After you complete the configuration, click OK.

    4. After the instance is created, click OK in the pop-up window to activate the instance, then click Buy Now on the payment page.

      Note

      The service is pay-as-you-go, so you do not need to pay any fees for creating an instance. For details about the billing method of EPN, see Price of Edge Private Network.

    Step 2: Create access points

    Create an EVBR based on an edge access port

    Create an Edge Virtual Border Router (EVBR) based on an edge access port to connect your enterprise data center and intranet to an EPN instance.

    1. On the Edge Private Network Instance page, find the instance that you created and click Details.

    2. On the details page, click the Create EVBR and configure the following parameters.

      Parameter

      Description

      Creation Type

      Select EVBR Added Based On Edge Access Port.

      Edge Access Port

      Select the edge access port instance on which you want to create an EVBR.

      If the edge access port instance does not exist, see Edge network resources to create one.

      VLAN ID

      Enter the VLAN ID of the EVBR. Valid value ranges from 0 to 4000.

      Note

      • VLAN ID is 0: The edge access port uses a Layer 3 routing interface (not VLAN mode). Each edge access port can host only one EVBR.

      • VLAN ID is 1 to 4000: The edge access port uses VLAN-based Layer 3 subinterfaces. Each VLAN ID maps to one EVBR, and EVBRs on different VLANs are isolated at Layer 2.

      Bandwidth

      Set the bandwidth of the EVBR. The sum of the bandwidth of all EVBRs under the same edge access port cannot exceed the bandwidth of the edge access port.

      Note

      The bandwidth value of the EVBR affects the cost of EPN. For information about the billing, see Price of Edge Private Network.

      Route Method

      Select the routing method for the EVBR: either BGP or Static Route.

      Client AS Number

      Enter the BGP AS number of the peer of the EVBR. If the routing method of the EVBR is static, leave this field blank.

      Note

      • The customer-side AS number ranges from 1 to 4294967295 and cannot be 45013.

      • The AS number on the EVBR side is fixed at 45103 and cannot be modified.

      Primary Peer IP Address

      Enter the Edge Cloud Peer IP Address and Client Peer IP Address of the EVBR and its peer.

      Secondary Peer IP Address

      (Optional) Enter the Edge Cloud Peer IP Address and Client Peer IP Address of the EVBR and its peer.

      Note

      The secondary IP address takes effect only when the primary one is unavailable.

      Advanced Features (BFD configurations)

      Choose whether to enable Bidirectional Forwarding Detection (BFD). Configurable items:

      • BFD UDP Destination Port: either 3784 (direct connection) or 4784 (multi-ISP).

      • BFD Sending Interval (ms): ranges from 200 to 1000.

      • BFD Receiving Interval (ms) ranges from 200 to 1000.

      • BFD Probes: ranges from 3 to 10.

      Note

      BFD quickly detects link failures. Paired with BGP, it accelerates route convergence and helps maintain service availability.

    Create an EVBR based on an edge shared cloud access port

    You can create an EVBR based on an edge shared cloud access port to connect the EPN instance to Express Connect in the central cloud, thereby connecting to ECS/VPC/OSS and other resources in the central cloud region.

    1. On the Edge Private Network Instance page, find the instance that you created and click Details.

    2. On the details page, click the Create EVBR and configure the following parameters.

      Parameter

      Description

      Creation Type

      Select EVBR Added Based On Shared Cloud Port.

      Edge Access Port

      Select the edge access port instance on which you want to create an EVBR.

      If the edge access port instance does not exist, see Edge network resources to create one.

      Bandwidth

      Set the bandwidth of the EVBR. The sum of the bandwidth of all EVBRs under the same edge access port cannot exceed the bandwidth of the edge access port.

      Note

      The bandwidth value of the EVBR affects the cost of EPN. For information about the billing, see Price of Edge Private Network.

      Route Method

      Select the routing method for the EVBR: either BGP or Static Route.

      Client AS Number

      Enter the BGP AS number of the peer of the EVBR. If the routing method of the EVBR is static, leave this field blank.

      Note

      • The customer-side AS number ranges from 1 to 4294967295 and cannot be 45013.

      • The AS number on the EVBR side is fixed at 45103 and cannot be modified.

      Primary Peer IP Address

      Enter the Edge Cloud Peer IP Address and Client Peer IP Address of the EVBR and its peer.

      Secondary Peer IP Address

      (Optional) Enter the Edge Cloud Peer IP Address and Client Peer IP Address of the EVBR and its peer.

      Note

      The secondary IP address takes effect only when the primary one is unavailable.

      Advanced Features (BFD configurations)

      Choose whether to enable Bidirectional Forwarding Detection (BFD). The configurable items include the following:

      • BFD UDP Destination Port: either 3784 (direct connection) or 4784 (multi-ISP).

      • BFD Sending Interval (ms): ranges from 200 to 1000.

      • BFD Receiving Interval (ms) ranges from 200 to 1000.

      • BFD Probes: ranges from 3 to 10.

      Note

      BFD quickly detects link failures. Paired with BGP, it accelerates route convergence and helps maintain service availability.

    Create an ENSGW based on an ENS node

    You can create an Edge Node Service Gateway (ENSGW) based on an ENS node to connect your ENS VPC to an EPN instance.

    1. On the Edge Private Network Instance page, find the instance that you created and click Details.

    2. On the details page, click Add ENSGW and configure the following parameters.

      Configuration

      Description

      Node

      Enter the ENS node where you want to create the ENSGW.

      Note

      You can view the ENS node number through the ENS console.

      Rate Limit

      Set the rate limit of the ENSGW.

      Note

      The rate of the ENSGW directly affects the cost of EPN.

    3. Click Associate vSwitch on the right side of the corresponding ENSGW and configure the following parameters.

      Note

      After the ENSGW is created, you need to associate an ENS vSwitch to add the VPC to the network.

      Configuration

      Description

      vSwitch

      Select the ENS vSwitch that you want to add to the EPN instance.

      Note

      You can view the ENS vSwitch through the ENS console.