while i'm receiving IP traffic from source then forwarded to specific class of service as this traffic is critical , to reach our distination we are passing through L2VPN connection , i can see QOS dosn't take effect . so if i have a congestion i can see impact with this critical traffic .
note : ccc encapsulation used so i need to understand more how QOS handled with MPLS L2VPN .
i need to understand more how QOS handled with MPLS L2VPN .
I presume You are familiar with JUNOS QoS/COS concepts like classifiers, forwarding-classes, schedulers, scheduler-maps, rewrite rules?
I also presume this is Ethernet L2VN, correct?
If yes+yes then the answer to Your question is that on Access Circuit/AC, the L2VPN QoS is handled with IEEE 802.1p bits, in the MPLS core the L2VPN CoS is handled with MPLS Traffic Class a.k.a. EXP bits.