Currently, Tencent Cloud operates 20+ IDCs and 50+ AZs worldwide, with edge zones available in major Chinese provincial capitals. Relying on global IDC networks and premium IDC interconnection capabilities, it provides rich network solutions that can meet various needs, such as on-cloud network interconnection, cross-region and cross-account high-speed network interconnection, and on-cloud, off-cloud, and hybrid-cloud network interconnection.
Tencent Cloud mainly provides the following network services:
|On-cloud network||Within a VPC||Virtual Private Cloud||Independent, controllable, secure, and isolated dedicated on-cloud network space.|
|Elastic Network Interface||A CVM instance can be bound to multiple ENIs, and an ENI can be bound to multiple private IPs.|
|Overview||A private IP assigned from the VPC subnet CIDR block, usually used with high-availability software to build high-availability primary and secondary clusters.|
(in the same region)
|Private connection||Enables one-way service access from one VPC to another.|
|Peering Connection||Enables one-to-one private network interconnection between two VPCs in the same region.|
|Cloud Connect Network||Enables private network interconnection between multiple VPCs in the same region.|
|Public network connection||EIP||Used for flexible binding and unbinding of Tencent Cloud resources, commonly in use cases where a Tencent Cloud resource instance (such as a CVM instance bound to an EIP) is interconnected with the public network.|
|EIP IPv6||Enables the interconnection of IPv6 and the public network.|
|NAT Gateway||Enables multiple CVM instances to access the public network through a NAT gateway.|
|Cloud Load Balancer||Distributes public network traffic to multiple backend CVM instances to enhance the availability of backend services.|
|Public network acceleration||Anycast Internet Acceleration||A dynamic acceleration network covering multiple regions to dramatically improve the public network access experience of your businesses.|
|Network cost saving||Bandwidth Package||A multi-IP aggregated billing mode that enables aggregated bandwidth billing through shared bandwidth packages, saving bandwidth costs compared with purchasing bandwidth for each device.|
|Shared traffic package||All Tencent Cloud resources billed by traffic for the public network in the same region can be more cost-effective through shared traffic packages.|
|Cross-region network||Peering Connection||Enables one-to-one interconnection between two VPCs across regions and accounts.|
|Cloud Connect Network||Enables network interconnection between multiple VPCs across regions and accounts.|
|Hybrid cloud network||VPN Connections||Connects a local IDC to a VPC via an encrypted public network channel, with the network quality dependent on the public network.|
|Direct Connect||Connects a VPC and a local IDC through a leased line, which delivers a dedicated network linkage, high security and guaranteed low network latency.|
|Cloud Connect Network||Connects a local IDC to CCN through a dedicated tunnel for connection with multiple on-cloud VPCs, thus implementing one connection for global connectivity.|
|SD-WAN connection service||Branches in different regions can be connected to CCN through edge devices of SD-WAN for hybrid cloud network connectivity.|
|Network security||Security Group Overview||Instance-level access control of inbound and outbound traffic of CVM, CLB, and other instances.|
|Network ACL||Subnet-level access control of inbound and outbound traffic.|
|Network Ops||Flow Logs||Collects traffic within a specified scope (such as ENIs) and delivers it to CLS to view and search for data for troubleshooting, compliance audit, and other use cases.|
|Instance Port Verification||Checks the accessibility of security group ports of CVM instances to locate faults.|
|Network Probe||A service used to monitor the quality of VPC connections, including latency, packet loss rate, and other key metrics.|
|Gateway traffic control||Provides IP-level capabilities of gateways (such as NAT gateways and VPN Connections) to monitor and control bandwidth between private IPs and gateways.|
|Overview||Filters the traffic in the specified collection scope by different criteria and replicates and forwards it to CVM in a VPC, which is suitable for security audit, troubleshooting, and business analysis use cases.|
|Overview||Sets backup policies for associated objects (such as security groups) and performs data backups, which can be used for disaster recovery and other use cases.|
The following describes the Tencent Cloud network services that can be used in different use cases.
If multiple CVM instances in a VPC need to access the internet, you can purchase a NAT gateway and use its SNAT service, so that these CVM instances can access the internet through the same public IP. For more information, see Getting Started.
Cloud Load Balancer (CLB) provides a secure and fast traffic distribution service. When the internet accesses Tencent Cloud services, the access traffic can be automatically distributed to multiple CVM instances via CLB, which expands the system's service capabilities and eliminates single points of failure. For more information, see Getting Started with CLB.
Tencent Cloud supports interconnection of VPCs in different regions, which can be implemented in the following ways:
VPCs in different regions (under the same account or different accounts) can be interconnected through a peering connection. For more information, see Peering Connection.
Multiple VPCs in multiple regions (under the same account or different accounts) can be interconnected over CCN. For more information, see Cloud Connect Network.
Tencent Cloud provides the following service capabilities to interconnect a VPC and a local IDC.