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[1] Generalized Multi-Protocol Label Switching (GMPLS)
Generalized Multi-Protocol Label Switching is a protocol that establishes generalized MPLS into all layers of the IP network: layer 2, TDM (Time Division Multiplexing), wavelength (WDM), and the fiber. The basic MPLS is a control mechanism that attaches fixed length labels to IP packets. GMPLS is attracting attention for controlling the next-generation photonic network. Standardization of GMPLS is being advanced mainly by IETF (The Internet Engineering Task Force). The basic function of GMPLS was released as a Proposed Standard in February 2003, with registration number RFC 3471-3473. In order to make it complete and a truly practical protocol, world-wide efforts are needed elaborate the remaining details and develop protocol code that can be directly installed in network equipment.
[2] signaling
Operation which exchanges signals between the control devices of network equipment, such as routers and optical crossing connects in order to set up and release paths. The format of the control signal and the procedure to exchange control packets are defined in the signaling protocol.
[3] Time Division Multiplexing (TDM)
Transmitting technology using time division multiplexing. SDH/SONET is used widely in many networks.
[4] RSVP-TE
One of the protocols for signaling ,that is, to setup a path and release it. Extended for MPLS from RSVP. The original RSVP is a protocol for bandwidth reservation.
[5] Photonic Internet Lab (PIL)
PIL is promoting research into and development of next-generation photonic network technologies (See http//www.jk.ws32.arena.ne.jp). PIL encourages the submission of proposals from its members to global standardization bodies, like ITU-T, IETF, and OIF. PIL also tests the photonic network control programs developed by PIL member companies. PIL activities are supported by the R&D support scheme of the MPHPT (Ministry of Public Management, Home Affairs, Posts and Telecommunications) for funding selected IT activities.
[6] next-generation photonic network
A network that more fully realizes the benefits of optical technology; like optical fiber transmission, wavelength division multiplexing, and so on. At present, optical fiber and wavelength multiplexing are mainly used for point to point transmission. The next-generation photonic network demands effective optical switching technology. Most current switches are electrical because the few existing optical switches offer insufficient performance. A high-speed and large-scale network can be created if advanced optical switching technology (the optical signal is switched without optical-electrical conversion) can be realized.
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Date: 20 May, 2003
City: Tokyo
Company:
Fujitsu Laboratories Ltd.,
Nippon Telegraph and Telephone Corporation,
NEC Corporation,
The Furukawa Electric Co., Ltd.,
Mitsubishi Electric Corporation,