Hi,\n\nI have a couple of questions about the use of a service providers MPLS\nnetwork to link two corporate sites via VPN. Please bear with me as my\nknowledge of QoS etc. is limited. I understand the basic principle of\nQoS and of MPLS but I am confused as to the possible combinations of\nthe two.\n\nBasically, at each site there is a fairly small LAN. The proposal from\nthe provider shows each site having a MPLS router (Cisco) connected to\nthe LAN edge routing traffic to their network - so the MPLS labels are\nassigned at the edge of each site.\n\nI am a little confused about the relationship (if any) between QoS and\nMPLS. I am wondering - Does the router perform the analysis of the\ndata in order to correctly assign CoS and label the packets? If so, is\nthis all that is required ? I had previously thought that this worked\nby a device upstream of the edge router assigning QoS to data based on\npolicies, which the MPLS router would then interpret in order to label\nthe outgoing data. Again, forgive the ignorance ;-)\n\nTIA,\n\nCraig.