System, apparatus and method for supporting constraint based routing for multi-protocol label switching traffic engineering in policy-based management

A policy server is arranged to construct device-neutral policies for configuring CBR for MPLS traffic engineering across a network. The policy server translates the device-neutral policies into device-specific commands (e.g. link attribute definitions and affinity profiles). The policy server defines the link attributes, assigns the link attributes to network interfaces, establishes affinity profiles and attaches the affinity profiles to MPLS tunnels. The link attribute definitions and affinity profiles are shared across the network to construct the policies such that IP operators can configure CBR easily across a network.