Wonderfull idea !!!!!!
O think it should work let me complete the config , so i have 2 last questions ,
do you think it is better to complete BGP under R1 or general config ?
I am working with virtual router first time. Where will i create the vlans ? 
do you know any sample for it i have checked on google but could not find how to put bridge domains in virtual routers.
root@mx80-core# commit
commit complete
[edit]
root@mx80-core# show logical-systems
LS {
interfaces {
lt-0/0/1 {
unit 1 {
encapsulation ethernet;
peer-unit 2;
family inet {
filter {
input FWDonus;
}
address 10.10.11.1/30;
}
}
unit 2 {
encapsulation ethernet;
peer-unit 1;
family inet {
address 10.10.11.2/30;
}
}
}
}
}
[edit]
root@mx80-core#