VTP Domain Assignments

VTP Domain Assignments
If a router interface is connected to a switch that is a VTP server or client, assigning the VLAN
Trunk Protocol (VTP) domain is also a necessary step for MLS to work properly. It is very
important to note that this step should be executed before any further MLS interface-specific
commands are entered.
Failing to assign the VTP domain before configuring interfaces will place interfaces
into a “null domain” rather than the proper one. Fixing this requires disabling
MLS on the interfaces, and then fixing the domain and adding the
interfaces back in.