Transport Entity
The TE is a connection that is created utilizing existing network configuration information such as cross connections and Sections. FOXMAN-UN NP knows all TEs contained in the network at all rates, SDH (STM-[1|4|16], RS, MS, VC-X), PDH (P0, P0_nc), DSL, … and inter-layer usage (client/server relations).
The TE brings data from one source termination point to one or more sink termination points in the network at various physical (STM-1, STM-4, STM-16, E12, E-DSL…) and logical rates (P0_nc, P12, VC12, …). The recognition of the TE requires a global view of the network as opposed to an element view.
TE representation
The FOXMAN-UN NP has defined four types of TE:
• Circuit,
• Trail,
• Sub-network Connection (SNC),
• Unknown.