1. E.C. Rosen. A. Viswanathan and R. Calln, Multiprotocol Label Switching Architecture, IETF RFC 3031, July 2000
2. ATM Forum, Private Network-Network Interface Specification Version 1.0, af-pnni-0055.000, March 1996.
3. K. Nagami, Y. Katsube, N. Demizu, H. Esaki and P. Doolan, VCID Notification over ATM link for LDP, IETF RFC 3038, Jan.2001.
4. M. Suzuki, The Assignment of the Information Field and Protocol Identifier in the Q.2941 Generic Identifier and Q.2957 User-to-user Signaling for the Internet Protocol, IETF RFC 3033, Jan.2001.
5. ATM Forum, PNNI Augmented routing (PAR), Version 1.0, af-ra-0104.000, January 1999.