Abstract: A system and a method are provided for use in an MPLS network, wherein the system comprises at least one routing element configured to share one or more circuits among multiple Intermediate System to Intermediate System (IS-IS) routing protocol instances, wherein each of the multi instances is associated with a unique database, and wherein the at least one routing element comprises a managing entity configured to: manage a plurality of traffic engineering software agents each associated with a respective database, and allocate available resources to respective instances; update at least one of the plurality of databases; and for traffic that is about to be conveyed via a specific instance, determine a neighboring instance through which said traffic will be conveyed, based on information comprised in the database associated with the specific instance through which said traffic will be conveyed.

Abstract: A system and a method are provided for use in an MPLS network, wherein the system comprises at least one routing element configured to share one or more circuits among multiple Intermediate System to Intermediate System (IS-IS) routing protocol instances, wherein each of the multi instances is associated with a unique database, and wherein the at least one routing element comprises a managing entity configured to: manage a plurality of traffic engineering software agents each associated with a respective database, and allocate available resources to respective instances; update at least one of the plurality of databases; and for traffic that is about to be conveyed via a specific instance, determine a neighboring instance through which said traffic will be conveyed, based on information comprised in the database associated with the specific instance through which said traffic will be conveyed.