Ciena France Telecom Ciena A set of requirements and a proposed solution for the control of hierarchical Label Switched Paths (LSPs) is found in [HIER]. However, support of multiple client layer networks and address separation as allowed by the Automatically Switched Optical Network (ASON) architecture [G.8080] are not covered by [HIER]. This internet draft describes additional requirements to consider for the use of LSP hierarchy in ASON networks.