Hi everyone. Here is something i can't find out the answer :
I have to design a network in which LANs are working with DiffServ Classification and interworking with a MPLS backbone. The DiffServ policy is particular as there are two VoIP classes with the same low latency and low jitter guarantees and differ only on the drop precedence. In other words, when congestion occurs, mpls nodes have to drop one kind of Voice packets and continue to serve the other kind with guaranteed properties, including bandwidth, in order to maintain some of the communications.
So basically i have one VoIP queue and i need the LSR to figure out which packet can't be dropped and which can.
I thought i could use E-LSP mapping like this : two DSCP corresponding to Two VoIP classes using one LSP (when communications are going to the same Egress LSR) in which EXP is carrying out the drop precedence. Is it possible? Is there a better way?
Thanks a lot for your future answers.