Overview
The container network assigns IP addresses to pods in a cluster and provides networking services. In CCE, you can select the following network models for your cluster:
Network Model Comparison
Table 1 describes the differences of network models supported by CCE.
After a cluster is created, the network model cannot be changed.
Dimension |
Tunnel Network |
VPC Network |
Cloud Native Network 2.0 |
---|---|---|---|
Application scenarios |
|
|
|
Core technology |
OVS |
IPvlan and VPC route |
VPC ENI/sub-ENI |
Applicable clusters |
CCE standard cluster |
CCE standard cluster |
CCE Turbo cluster |
Container network isolation |
Kubernetes native NetworkPolicy for pods |
No |
Pods support security group isolation. |
Interconnecting pods to a load balancer |
Interconnected through a NodePort |
Interconnected through a NodePort |
Directly interconnected using a dedicated load balancer Interconnected using a shared load balancer through a NodePort |
Managing container IP addresses |
|
|
Container CIDR blocks divided from a VPC subnet (You do not need to configure separate container CIDR blocks.) |
Network performance |
Performance loss due to VXLAN encapsulation |
No tunnel encapsulation, and cross-node traffic forwarded through VPC routers (The performance is so good that is comparable to that of the host network, but there is a loss caused by NAT.) |
Container network integrated with VPC network, eliminating performance loss |
Networking scale |
A maximum of 2000 nodes are supported. |
Suitable for small- and medium-scale networks due to the limitation on VPC routing tables. It is recommended that the number of nodes be less than or equal to 1000. Each time a node is added to the cluster, a route is added to the VPC routing tables (including the default and custom ones). Evaluate the cluster scale that is limited by the VPC routing tables before creating the cluster. For details about routing tables, see Constraints. |
A maximum of 2000 nodes are supported. In a cloud-native network 2.0 cluster, containers' IP addresses are assigned from VPC CIDR blocks, and the number of containers supported is restricted by these blocks. Evaluate the cluster's scale limitations before creating it. |
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
For any further questions, feel free to contact us through the chatbot.
Chatbot