Thank you, The config you gave work.
basically, what we are trying to do is extending the backbone area 0 and connect all the remote sites to SRX-R1 and SRX-R2 so that if SRX-R1 goes down, SRX-R2 should be able to take over.
However, if SRX-R1 and R2 both are operational, we want all the traffic go thru R1 to reach R2.
when we increase the cost on the link between R2 and R3, traffic behind R3 take the link between R1 and R2 but when it comes back it's taking the link between R2 and R3 becasue it's intra route is prefered over inter route and creating an asymetrix route.
do you know any way to solve this issue?
Thank you,