What does a cloud server vpc mean?

What is a private network

A private information network is your private enterprise network on the cloud. You can carry out the proprietary network without any control of the students themselves, such as we choose the IP address management scope, ARM hostingconfigure the routing table and gateway, etc., you can use in your own need to define the proprietary network and Alibaba cloud resources, such as cloud server, cloud database RDS and load balancer.

You can connect your proprietary network to your on-premises network via high-speed channels, creating a customized networking environment that enables smooth migration of applications to the cloud and expansion of the data center.

component

Each private network consists of at least one private network segment, Cloud platfrom providerone router, and at least one switch.

Private network segment

When creating a private network and switch, virtual private cloudspecify the private network segment used by the private network in the form of a CIDR address block.

You can use the standard private network segment and its subnet in the following table as the private network segment of the VPC. You can also use a customized address segment as the private network segment of the VPC.

router

A vRouter is the hub of a proprietary information network. As an important functional component in the enterprise proprietary technology network, it can be connected to the various switches within the proprietary network, and we are also a gateway device connecting the proprietary network and other national networks. After each student successfully creates a proprietary network, the system automatically creates its own router. Each router is associated with a routing table.

exchange

A VSwitch is a basic networking device that forms a private network for connecting different cloud resources. After a private network is created, you can create a switch to divide one or more subnets of the private network. Interconnection between different switches in the same private network. You can deploy your application on switches in different availability zones to improve the availability of your application.

Product advantage

Private network VPCS (virtual private clouds) are secure, reliable, flexible, controllable, easy to use, and scalable.

Safe and reliable

Each VPC has a separate tunnel number that corresponds to a virtualized network:

Because VPCS have switches and routers, subnets can be divided just like in a traditional network environment. Different cloud servers in each subnet are connected through the same switch, and different subnets are connected through routers.

Different VPCS are isolated from each other by internal control network technologies and can be connected using external mapped IP addresses (elastic public IP address and NAT IP address).

The IP packet of the cloud server is encapsulated by the tunnel encapsulation technology. Therefore, the data link layer (Layer 2 MAC address) information of the cloud server does not enter the physical network. In this way, the two-layer network isolation between cloud servers is implemented.

The cloud server in a VPC uses a security group firewall for Layer 3 network access control.

Flexible and controllable

You can flexibly control the inbound and outbound traffic of cloud resources in a VPC based on Security Group rules and access control whitelists.

Easy to use

On the VPC console, you can quickly create and manage a VPC. After a VPC is created, the system automatically creates routers and routing tables for the VPC.

Strong scalability

You can create different subnets in a VPC to provide different services. In addition, you can connect a VPC to a local enterprise data information center or other VPCS to extend the student network technology architecture.