Understanding Multiple VLAN Registration Protocol (MVRP) for Dynamic VLAN Registration
https://www.juniper.net/documentation/en_US/junos/topics/concept/mvrp-mx-series-understanding.html
manages the addition, deletion, and renaming of active virtual LANs, thereby reducing network administrators’ time spent on these tasks
set interfaces interface-range AccessPorts member ge-0/0/19
set interfaces interface-range AccessPorts member-range ge-0/0/0 to ge-0/0/1
set interfaces interface-range AccessPorts unit 0 family ethernet-switching interface-mode trunk
set interfaces interface-range AccessPorts unit 0 family ethernet-switching vlan members Vlan100
set interfaces interface-range AccessPorts unit 0 family ethernet-switching vlan members Vlan101
set protocols mvrp interface ge-0/0/0
set protocols mvrp interface ge-0/0/1