第一道
TEST1的加入必须在同一个域中才会对他们起作用Advertisements with different names are ignored.
Switches in a VTP domain always use the VLAN configuration of the switch with the highest VTP configuration revision number. If a switch is added with a higher revision number than what is currently in the VTP domain, it can erase all VLAN information from the VTP server and VTP domain.