tcpConnectionType

The availability check method of the instance. Valid values:

• SHORT: Alibaba Cloud uses short-lived connections to check the availability of the instance.

• LONG: Alibaba Cloud uses persistent connections to check the availability of the instance.

NOTE: zone_id_slave_a and zone_id_slave_b can specify slave zone ids when creating the high-availability or enterprise edition instances. Meanwhile, vswitch_id needs to pass in the corresponding vswitch id to the slave zone by order (If the vswitch_id is not specified, the classic network version will be created). For example, zone_id = "zone-a" and zone_id_slave_a = "zone-c", zone_id_slave_b = "zone-b", then the vswitch_id must be "vsw-zone-a,vsw-zone-c,vsw-zone-b". Of course, you can also choose automatic allocation , for example, zone_id = "zone-a" and zone_id_slave_a = "Auto",zone_id_slave_b = "Auto", then the vswitch_id must be "vsw-zone-a,Auto,Auto". The list contains up to 2 slave zone ids , separated by commas.