[j-nsp] OC48 to dual Gig question

[salimlist at sdv.fr]

Hi !

I'm new to Juniper and we are trying here to setup a M20 to switch 
traffic between  an OC48 interface to an aggregate of 2 Ethernet Gig 
interfaces .

So far, we managed to setup the M20 to do OC48 to 1 Gig Interface 
with the following config :
------------------------------------------------------------------------------------
interfaces {
     ge-0/0/0 {
         description "The Gig Interface side A";
         encapsulation ethernet-tcc;
         unit 0 {
             family tcc {
                 proxy {
                     inet-address 192.168.0.1;
                 }
                 remote {
                     inet-address 192.168.0.2;
                 }
             }
         }
     }
     so-3/0/0 {
         enable;
         description "The OC48 Interface side B";
         encapsulation ppp-tcc;
         sonet-options {
             fcs 32;
         }
         unit 0;
     }

protocols {
     mpls {
         interface ge-0/0/0.0;
         interface se-3/0/0.0;
     }
     connections {
         interface-switch Gig-To-OC48 {
             interface ge-0/0/0.0;
             interface so-3/0/0.0;
         }
     }
}
------------------------------------------------------------------------------------

This config is working perfectly but is limited to 1Gb/s, as we have 
4 Gig interfaces on this box, we would like to aggregate 2 (or 3) Gig 
Interfaces.
I have tryed with ae0 interface, but this kind of interface does not 
seems to support ethernet-tcc encapsulation (only ccc seems supported)

Any idea if this is even possible, if yes any help is welcome .

Best regards,

Salim