The region command creates a region.
The undo region command deletes a region.
By default, no region is created.
Usage Scenario
After the region verification function is enabled, you can run the region command to create a region. Multiple trusted ASs can be added to each region.
Precautions
A maximum of 100 regions can be configured in a VS.
If a region has been added to a regional confederation, the region cannot be deleted directly. You need to remove the region from the regional confederation first.