:CreateDefaultVSwitch

Usage notes

When you call this operation, take note of the following limits:

• The first IP address and last three IP addresses of a vSwitch CIDR block are reserved. For example, if the CIDR block of a vSwitch 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.
• The number of instances in the default vSwitch cannot exceed the remaining number of instances supported by the VPC (15,000 minus the number of existing instances).
• Default vSwitches do not support multicasting or broadcasting.
• After you create a default vSwitch, you cannot modify its CIDR block.
• CreateDefaultVSwitch is an asynchronous operation. After you send a request, the system returns a request ID and runs the task in the background. You can call the DescribeVSwitchAttributes operation to query the status of a default vSwitch:
  • If a default vSwitch is in the Pending state, it is being configured.
  • If a default vSwitch is in the Available state, it is available.
• If a default vSwitch already exists in a region, you cannot call this operation to create a default vSwitch in this region.
• Before you create a default vSwitch, make sure that a default VPC is created. You can call the CreateDefaultVpc operation to create a default VPC.

Request parameters

Response parameters

Examples

Sample requests

http(s)://[Endpoint]/?ZoneId=cn-hangzhou-b
&RegionId=cn-hangzhou
&Ipv6CidrBlock=12
&Action=CreateDefaultVSwitch
&ClientToken=0c593ea1-3bea-11e9-b96b-88e9fe63****
&Common request parameters

Sample success responses

XML format

HTTP/1.1 200 OK
Content-Type:application/xml

<CreateDefaultVSwitchResponse>
    <VSwitchId>vsw-bp1a4b5qhmxftjimq****</VSwitchId>
    <RequestId>0ED8D006-F706-4D23-88ED-E11ED28DCAC0</RequestId>
</CreateDefaultVSwitchResponse>

JSON format

HTTP/1.1 200 OK
Content-Type:application/json

{
  "VSwitchId" : "vsw-bp1a4b5qhmxftjimq****",
  "RequestId" : "0ED8D006-F706-4D23-88ED-E11ED28DCAC0"
}

Error codes

For a list of error codes, see Service error codes.