1. A telecommunications system in a DiffServ aware Traffic Engineering (DS-TE) environment comprising: a plurality of source nodes from which LSPs arise; an MPLS network having DS-TE compliant routers and links with available bandwidth between the routers, the links having equal cost paths, each router adding an LSP to a link as a function of available bandwidth, the plurality of source nodes in communication with the network, the MPLS network using a DS-TE bandwidth constraint model; and a plurality of destination nodes in communication with the network which receives LSPs.