弓XtenSions血r photonic label switchhg tedmologies. NTT demonstratcdthe HIM router bhotonic MPLS ro... more 弓XtenSions血r photonic label switchhg tedmologies. NTT demonstratcdthe HIM router bhotonic MPLS router) [5, 6] which is based on也e MP九S technologies as the first realization of血e photonic MPLS concept・ the OXC is stzmgly associated widl the lP network throughthe photonic MPLS concept and GMPLS. The fW router evolves the OXC into an LSR (hb由 Switched router) which is categori2:ed as an IP router. the HM router provides mdti-layer ~tra瓜c engneermg toolbox触ctions tothe IP-oveトOPtical networks l7】. This paper presents the IPl0Ver-optical netwo血 technologies, the OXC technologies,the photonic MPLS concq)I, and HIEARI router teclmologies.
A photonic network offers a high-speed circuit with wavelength division multiplexing (WDM) transm... more A photonic network offers a high-speed circuit with wavelength division multiplexing (WDM) transmission and wavelength routing. In current WDM transmission technology, the number of wavelengths that can be accommodated in one optical fiber is less than about one hundred due to physical restrictions. Since wavelength is a comparatively valuable resource, it should be used efficiently in the photonic network. To offer new network services, it is necessary to control optical paths dynamically. This paper describes optical path control techniques and newly proposed variable-capacity optical path techniques, which are both provided by signaling protocols based on generalized multiprotocol label switching (GMPLS). Traffic Engineering Techniques in Photonic Networks † NTT Network Innovation Laboratories Musashino-shi, 180-8585 Japan E-mail: okamoto.satoru@lab.ntt.co.jp *1 Optical path: A path for transmitting information end-to-end using one wavelength. The transmission rate is 2.5, 10, or...
GMPLS-based H/FMRl reuters (PhotonI'c MPLS routers) were developed to create future /P backbo... more GMPLS-based H/FMRl reuters (PhotonI'c MPLS routers) were developed to create future /P backbone netwol*S. This paper presents new network sewices provided through H/IMRl edge router systems. 1. htroduction The growth in the amount of lP data tra仲ic is st川 remarkable even after the optical bubble has broken. To enhance SDH/SONET based lP transport seIVices, the Generic Framing Procedure (GFP)川and Link Capacity Adjustment Scheme (LCAS) [2] were deve一oped. These technologles are applied to the next generation SDH/SONET boxes such as GeneraJized MultiProtocoI Label Switching (GMPLS) 【31 controlled inteH9ent Cross-COnneCt boxes and mufti-service multiplexlng boxes. OpticaJ technology can enrich the quality of existing IP services and can produce new IP seIVices. NTT has proposed "HIKARI serv至ces" [4】, a generic name for new broadband servJCeS. HIKARI servICeS are Provided through Fiber to the Home (FTTH) techno一ogies and H暮KARl router (Photonic MPLS router) [517] technologi...
One of new applications on a new generation network (NwGN) is a contents centric network (CCN). T... more One of new applications on a new generation network (NwGN) is a contents centric network (CCN). The target of CCN is contents based networking. We enhanced a concept of CCN to machine-to-machine communications, streaming communications, and contents creation services within the network. This is called an enhanced-type data-centric network (E3-DCN). To develop E3-DCN, orchestration between packet switching and circuit switching is important. This paper provides an E3-DCN concept and architecture to realize energy efficient optical networking.
We develop a P2MP energy-saving routing design using Prim's algorithm to reduce the energy co... more We develop a P2MP energy-saving routing design using Prim's algorithm to reduce the energy consumption of the transport network for multipoint services. By computer simulation, it is shown the developed algorithm provides an energy-saving topology within 1 second and reduces number of links up to 57% in 40 node network.
弓XtenSions血r photonic label switchhg tedmologies. NTT demonstratcdthe HIM router bhotonic MPLS ro... more 弓XtenSions血r photonic label switchhg tedmologies. NTT demonstratcdthe HIM router bhotonic MPLS router) [5, 6] which is based on也e MP九S technologies as the first realization of血e photonic MPLS concept・ the OXC is stzmgly associated widl the lP network throughthe photonic MPLS concept and GMPLS. The fW router evolves the OXC into an LSR (hb由 Switched router) which is categori2:ed as an IP router. the HM router provides mdti-layer ~tra瓜c engneermg toolbox触ctions tothe IP-oveトOPtical networks l7】. This paper presents the IPl0Ver-optical netwo血 technologies, the OXC technologies,the photonic MPLS concq)I, and HIEARI router teclmologies.
A photonic network offers a high-speed circuit with wavelength division multiplexing (WDM) transm... more A photonic network offers a high-speed circuit with wavelength division multiplexing (WDM) transmission and wavelength routing. In current WDM transmission technology, the number of wavelengths that can be accommodated in one optical fiber is less than about one hundred due to physical restrictions. Since wavelength is a comparatively valuable resource, it should be used efficiently in the photonic network. To offer new network services, it is necessary to control optical paths dynamically. This paper describes optical path control techniques and newly proposed variable-capacity optical path techniques, which are both provided by signaling protocols based on generalized multiprotocol label switching (GMPLS). Traffic Engineering Techniques in Photonic Networks † NTT Network Innovation Laboratories Musashino-shi, 180-8585 Japan E-mail: okamoto.satoru@lab.ntt.co.jp *1 Optical path: A path for transmitting information end-to-end using one wavelength. The transmission rate is 2.5, 10, or...
GMPLS-based H/FMRl reuters (PhotonI'c MPLS routers) were developed to create future /P backbo... more GMPLS-based H/FMRl reuters (PhotonI'c MPLS routers) were developed to create future /P backbone netwol*S. This paper presents new network sewices provided through H/IMRl edge router systems. 1. htroduction The growth in the amount of lP data tra仲ic is st川 remarkable even after the optical bubble has broken. To enhance SDH/SONET based lP transport seIVices, the Generic Framing Procedure (GFP)川and Link Capacity Adjustment Scheme (LCAS) [2] were deve一oped. These technologles are applied to the next generation SDH/SONET boxes such as GeneraJized MultiProtocoI Label Switching (GMPLS) 【31 controlled inteH9ent Cross-COnneCt boxes and mufti-service multiplexlng boxes. OpticaJ technology can enrich the quality of existing IP services and can produce new IP seIVices. NTT has proposed "HIKARI serv至ces" [4】, a generic name for new broadband servJCeS. HIKARI servICeS are Provided through Fiber to the Home (FTTH) techno一ogies and H暮KARl router (Photonic MPLS router) [517] technologi...
One of new applications on a new generation network (NwGN) is a contents centric network (CCN). T... more One of new applications on a new generation network (NwGN) is a contents centric network (CCN). The target of CCN is contents based networking. We enhanced a concept of CCN to machine-to-machine communications, streaming communications, and contents creation services within the network. This is called an enhanced-type data-centric network (E3-DCN). To develop E3-DCN, orchestration between packet switching and circuit switching is important. This paper provides an E3-DCN concept and architecture to realize energy efficient optical networking.
We develop a P2MP energy-saving routing design using Prim's algorithm to reduce the energy co... more We develop a P2MP energy-saving routing design using Prim's algorithm to reduce the energy consumption of the transport network for multipoint services. By computer simulation, it is shown the developed algorithm provides an energy-saving topology within 1 second and reduces number of links up to 57% in 40 node network.
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Papers by Satoru Okamoto