VPC |
Select the VPC to which the vSwitch belongs. |
IPv4 CIDR Block |
Displays the IPv4 CIDR block of the VPC. |
IPv6 CIDR Block |
Displays the IPv6 CIDR block of the VPC.
Note If IPv6 is disabled for the VPC, click Enable IPv6 CIDR Block. After IPv6 is enabled, the system automatically creates an IPv6 gateway of Free
Edition.
|
Name |
Enter a name for the vSwitch.
The name must be 2 to 128 characters in length, and can contain digits, underscores
(_), and hyphens (-). The name must start with a letter.
|
Zone |
Select a zone for the vSwitch. In the same VPC, vSwitches in different zones can communicate
with each other.
|
Zone Resources |
Displays the cloud resources that can be created in the specified zone.
The supported cloud resources vary based on the zone and the time when you create
cloud resources. The instances provided in this topic are for reference only. The
actual instances on the buy page shall prevail. You can query the status of Elastic
Compute Service (ECS) instances, ApsaraDB RDS instances, and Classic Load Balancer
(CLB) instances.
|
IPv4 CIDR Block |
Specify an IPv4 CIDR block for the vSwitch. When you specify a CIDR block for the
vSwitch, take note of the following limits:
- The CIDR block of the vSwitch must be a subset of the CIDR block of the VPC.
For example, if the CIDR block of the VPC is 192.168.0.0/16, you can specify a CIDR
block from 192.168.0.0/17 to 192.168.0.0/29 for the vSwitch.
- The subnet mask of the vSwitch CIDR block must be 16 to 29 bits in length, which provides
8 to 65,536 IP addresses.
- The first IP address and last three IP addresses of a vSwitch CIDR block are reserved.
For example, if a vSwitch CIDR block is 192.168.1.0/24, the IP addresses 192.168.1.0,
192.168.1.253, 192.168.1.254, and 192.168.1.255 are reserved.
- If a vSwitch is required to communicate with vSwitches in other VPCs or with data
centers, make sure that the CIDR block of the vSwitch does not overlap with the destination
CIDR blocks.
- The CIDR block of a vSwitch cannot be the same as or larger than the destination CIDR
block of a route in the route table of the VPC to which the vSwitch belongs.
Notice After you create a vSwitch, you cannot change its CIDR block.
|
IPv6 CIDR Block |
Specify an IPv6 CIDR block for the vSwitch.
By default, the subnet mask of the IPv6 CIDR block of a vSwitch is /64. To specify
the last 8 bits of the IPv6 CIDR block, enter an integer from 0 to 255.
For example, if the IPv6 CIDR block of the VPC is 2xx1:db8::/64, you can enter 255
to define the last 8 bits of the IPv6 CIDR block of the vSwitch. In this case, the
IPv6 CIDR block of the vSwitch is 2xx1:db8:ff::/64. ff is the hexadecimal value of
255.
|
Available IP Addresses |
Displays the number of available IPv4 addresses of the vSwitch. |
Description |
Enter a description for the vSwitch.
The description must be 2 to 256 characters in length. The description cannot start
with http:// or https:// . You can also leave the parameter empty.
|
Resource Group |
Select the resource group to which the vSwitch belongs. |