This topic describes the release notes for Cloud Enterprise Network (CEN) and provides links to the relevant references.
December 2023
Feature | Update type | Description | Release date | References |
Line types | New feature | The Platinum and Gold line types are supported by inter-region connections. The Gold line type is ideal for services that do not have high requirements for network quality, such as data synchronization and data migration. The Platinum line type is ideal for services that are sensitive to network jitters and latency, such as securities transactions, online voice conferencing, and online video conferencing. | 2023-12-06 |
September 2023
Feature | Update type | Description | Release date | References |
Savings plans for transit routers | New feature | Savings plans are supported by transit routers. Transit router savings plans are a flexible pricing model that can help you reduce your bills at a certain discount in exchange for a minimum spending commitment within a commitment term. Transit router savings plans can be used to offset data transfer fees of Enterprise Edition transit routers. | 2023-09-04 |
May 2023
Feature | Update type | Description | Release date | References |
Quick configurations for traffic marking policies | Optimization | Traffic classification rules are supported by traffic marking policies. | 2023-05-17 |
March 2023
Feature | Update type | Description | Release date | References |
Route synchronization | New feature | Route synchronization is supported by Enterprise Edition transit routers. You can enable Enterprise Edition transit routers to automatically advertise routes to network instances. | 2023-03-30 | |
Aggregate routes | New feature | Aggregate routes are supported by Enterprise Edition transit routers. You can converge routes that have the same next hop (same or similar destination) into an aggregate route. If route synchronization is enabled for a virtual private cloud (VPC), the aggregate route, instead of the specific routes, is automatically advertised to the VPC. You can use aggregate routes to reduce the number of routes and improve route synchronization efficiency. | 2023-03-30 | |
Transit router diagnostics | New feature | CEN is integrated with Network Intelligence Service (NIS), which supports instance diagnostics and provides diagnosis results. You can use this feature to troubleshoot network errors on transit routers based on the diagnosis results. | 2023-03-22 | |
Reachability analyzer | New feature | CEN is integrated with Network Intelligence Service (NIS), which supports the reachability analyzer. You can use the reachability analyzer to test the connectivity between resources. | 2023-03-22 | |
Monitoring on transit routers | New feature | CEN is integrated with CloudMonitor, which can monitor transit routers. You can create threshold-triggered alert rules to be notified of anomalies in data transmission over transit routers. | 2023-03-17 | |
Multi-region equal-cost multi-path (ECMP) routing for virtual border routers (VBRs) | New feature | Multi-region ECMP routing is supported. After an Enterprise Edition transit router learns routes that have the same destination CIDR block from multiple VBRs, the routes are sorted by region ID by default if the other attributes of the routes are the same. The route with the first region ID in alphabetical order is selected as the primary route to forward traffic. If equal-cost multi-path (ECMP) routing is enabled for VBRs in different regions and the routes have the same attributes other than region IDs, those routes are considered equal-cost routes. | 2023-03-15 |
November 2022
Feature | Update type | Description | Release date | References |
Transit router CIDR blocks | New feature | Custom CIDR blocks for transit routers are supported. The CIDR block of a transit router is similar to the CIDR block of the loopback interface of a router. IP addresses within the CIDR blocks can be allocated to IPsec-VPN connections and Connect peers. | 2022-11-22 |
August 2022
Feature | Update type | Description | Release date | References |
IPsec-VPN connections | New feature | Enterprise Edition transit routers can be connected to IPsec-VPN connections. You can create an IPsec-VPN connection to connect a data center to a transit router, which allows the data center to communicate with other networks. | 2022-08-05 | |
Prefix lists | New feature | The route tables of Enterprise Edition transit routers can be associated with prefix lists. After the route table of an Enterprise Edition transit router is associated with the prefix list of a virtual private cloud (VPC), the system automatically adds the routes that point to the CIDR blocks in the prefix list to the route table of the transit router. | 2022-08-04 |
June 2022
Feature | Update type | Description | Release date | References |
Flow logs | New feature | Flow logs can be used to capture the information about network traffic transmitted over VBR connections. | 2022-06-17 | |
Multicast | New feature | Multicast is supported by Enterprise Edition transit routers. After network instances are attached to an Enterprise Edition transit router, you can create and manage multicast networks. The Enterprise Edition transit router functions as a multicast router that forwards packets between the network instances. | 2022-06-07 |
May 2022
Feature | Update type | Description | Release date | References |
VPC connections | Optimization | Enterprise Edition transit routers are optimized. Optimized Enterprise Edition transit routers that are connected to VPCs support traffic forwarding over the shortest path. | 2022-05-31 | Announcement: Optimization on VPC-connected Enterprise Edition transit routers |
December 2021
Feature | Update type | Description | Release date | References |
Billing by payer account | New feature | The account that pays the connection fee and data transfer fee can be specified when you connect an Enterprise Edition transit router to a VPC or a VBR. You can select the account to which the transit router belongs or the account to which the network instance belongs. | 2021-12-24 | Grant permissions on a network instance that belongs to another account |
November 2021
Feature | Update type | Description | Release date | References |
Flow logs | New feature | Flow logs are supported. Flow logs can be used to capture information about inter-region traffic between transit routers. You can analyze inter-region traffic, troubleshoot network errors, and reduce data transfer costs based on flow log data. | 2021-11-08 |
April 2021
Feature | Update type | Description | Release date | References |
Quality of service (QoS) policies | New feature | QoS policies are supported. QoS policies allow you to mark traffic of different services and configure bandwidth throttling. This ensures that your core services have sufficient bandwidth resources and improves network performance. | 2021-04-30 | Use traffic scheduling to limit bandwidth for inter-region connections |
Bandwidth multiplexing | New feature | Bandwidth multiplexing is supported by Cloud Connect Network (CCN). This feature allows a CCN transit router and a transit router that is deployed in the same region as the CCN instance to share inter-region bandwidth resources. This facilitates configurations and allows you to use bandwidth resources in a more flexible manner. | 2021-04-30 |
February 2021
Feature | Update type | Description | Release date | References |
Enterprise Edition transit routers | New feature | Enterprise Edition transit routers are supported. Enterprise Edition transit routers allow you to create custom route tables, add route entries, and add routing policies. Enterprise Edition transit routers facilitate route management and network management. | 2021-02-20 | |
Transit routers | New feature | Transit routers are supported. Transit routers are used to connect network instances within the same region or across different regions. This facilitates communication among different resources. | 2021-02-20 | |
Upgraded console | New feature | The CEN console is upgraded. The latest console version inherits all features of the earlier version and supports more features, including transit routers. This allows you to build a flexible, reliable, and large-scale network across the world. | 2021-02-20 |
May 2019
Feature | Update type | Description | Release date | References (previous console version) | References (latest console version) |
PrivateZone | New feature | Alibaba Cloud DNS PrivateZone (PrivateZone) is supported. PrivateZone is a VPC-based resolution and management service for private domain names. CCN instances and VBRs that are attached to a CEN instance can access PrivateZone. | 2019-05-16 |
October 2018
Feature | Update type | Description | Release date | References (previous console version) | References (latest console version) |
Overlapping routing | New feature | Overlapping routes are supported. After you enable overlapping routes, CEN can learn routes that have the same prefix but different mask lengths. This improves network flexibility. | 2018-10-12 | By default, this feature is enabled in the latest console version and cannot be disabled. | |
Deletion of health check configurations | New feature | Health check configurations can be deleted. | 2018-10-12 | ||
Alert rules | New feature | A link that redirects you to the CloudMonitor console is added to the CEN console. You can click the link to redirect to the CloudMonitor console where you can set alert rules. This facilitates O&M efficiency. | 2018-10-12 | ||
Network instance detaching | New feature | Network instances, such as VPCs, VBRs, and CCN instances, can be detached from CEN instances. | 2018-10-12 | ||
Connection to CCN across Alibaba Cloud accounts | New feature | Network instances can be attached to a CCN instance that belongs to a different Alibaba Cloud account. This allows you to connect on-premises networks to each other. | 2018-10-12 | Attach a network instance to a CEN instance and Attach a network instance | Grant permissions on a network instance that belongs to another account and Associate a CCN instance with a transit router |
July 2018
Feature | Update type | Description | Release date | References (previous console version) | References (latest console version) |
Route advertising | New feature | Route advertising is supported. You can advertise the routes of VPCs to CEN in the CEN console. | 2018-07-30 |