Maybe bridge-domain could helps you or even VPLS.
interface ge-0/0/1 flexible-vlan-tagging encapsulation flexible-ethernet-services unit 1020 encapsulation vlan-bridge vlan-tags outer 10 inner 20 unit 1021 encapsulation vlan-bridge vlan-tags outer 10 inner 21 unit 1130 encapsulation vlan-bridge vlan-tags outer 11 inner 30 unit 1130 encapsulation vlan-bridge vlan-tags outer 11 inner 31 interface ge-0/0/2 flexible-vlan-tagging encapsulation flexible-ethernet-services unit 100200 encapsulation vlan-bridge vlan-tags outer 100 inner 200 bridge-domain BRIDGE vlan-id none interface ge-0/0/1.1020 interface ge-0/0/1.1021 interface ge-0/0/1.1130 interface ge-0/0/1.1131 interface ge-0/0/2.100200
Something like this... not sure in some aspects, but it can works, I guess 
This config for MX, but maybe EFL switche can eat this.