Shi Zhibin network development Tomorrow NGN technologies (under)-NGN, optical fiber, cable Tv - HC6209271

Of: Tarrif Radio and television Bureau Dan Zhibin Connected to the article: [Photo] networks of tomorrow: NGN Technology (I) 4 principal specialized assistance NGN NGN want the assistance of many new technologies, although the ITU-T can have to wait until finally 2004 to produce a clear necessity, but for your a lot of people recognized NGN connected technologies: The end of soppy switching engineering enterprise exchange; making use of IP engineering bearing a range of enterprise, reaching triple engage in; making use of IPv6 engineering answers deal with difficulties and increase the overall throughput in the network; making use of MPLS (Multi Protocol Tag Switching) to attain a range of IP layer and website link layer protocol (ATM / FR, PPP, Ethernet, or SDH, mild waves) in combination; with OTN (optical transport network) and optical transmission and switching network to resolve the challenge of high-bandwidth switching; utilization of broadband entry remedy for the 'last mile' of Consumer Entry difficulty. As a result, it really is foreseeable the crucial technologies to attain NGN softswitch engineering, high-speed router / change engineering, high-capacity optical transport engineering and broadband entry Building a Business engineering. NGN Softswitch engineering that is the center engineering.

(1) exchange (Softswitch) engineering Because the center engineering of NGN, Softswitch is really a software-based distributed switching and manage platform. The idea of soppy switching perform model according to the brand new network layer (divided in to the entry layer, the media / transport layer, manage layer and network services layer four) concepts, therefore functions for different levels of integration, independent them many years, a range of interface protocols, to ensure that enterprise can provide a really flexible services delivery and manage protocols will probably be mixed to attain enterprise integration and enterprise transfer, the coexistence of different networks are extremely appropriate for your requirements of interoperability also implement to much more in the voice network enterprise / multimedia network evolution. (2) speed routing / switching engineering High-speed routers within the NGN transport layer, high-speed multimedia information movement routing and switching, will be the NGN transport hub. Path of improvement of NGN deal with large-capacity, high-bandwidth transmission / routing / switching, additionally, it should offer substantial since the present IP network QoS. IPv6, and MPLS provides this chance.

Because the network protocol, NGN will probably be according to IPv6. IPv6 in contrast to IPv4's principal benefits are: expanded deal with area, improving the general throughput in the network, significantly improving the high quality of services, a much better assure of safety, assistance plug and engage in and mobility, much better attain multicast performance. MPLS is really a third layer in the network's IP routing / addressing the second layer and network combining high-speed information exchange engineering. It combines the existing circuit-switched and edge routing techniques, can resolve numerous difficulties that exist within the network, especially in QoS and safety problems. (3) high-capacity optical transport engineering Optical fiber transmission: NGN want a greater price, higher capability. But up to now, may be noticed, and to attain the ideal medium of transmission continues to be mild. Simply because only the utilization of spectrum can deliver a lot of bandwidth. High-speed optical fiber transmission engineering is becoming expanded along the single-wavelength transmission capability, ultra-long-distance transport and dense wavelength division multiplexing (DWDM) method within the improvement of 3 directions. Optical switching and intelligent optical networks: only high-speed transmission isn't sufficient, NGN have to be much more flexible, much more efficient optical transport network. Networking engineering is relocating from the fall multiplexing and optical cross-connect perform network making use of optical switches to sort the improvement of intelligent optical networks, from ring networks to mesh network improvement, in the mild - electric power - for the all-optical switching optical switching improvement. Smart optical network versatility in capability, value success, network scalability, enterprise to deliver versatility, consumer self-help, protection and dependability, in contrast with level to level transmission programs and optical networking has much more benefits. (4) Broadband Entry Technology NGN broadband entry engineering have to have the assistance, due to the fact only the entry network bandwidth bottleneck is opened, the assortment of broadband providers and programs may be completed jointly, the likely of network capability can definitely engage in. This specialized assortment, the key engineering has high-speed electronic subscriber line (VDSL), Ethernet-based Passive Optical Community (EPON) in the fiber for the property (FTTH), no cost area optical method, (FSO), wi-fi regional spot network (WLAN). five NGN specialized benefits  NGN aims to reform the existing telecommunications network and details sector infrastructure to assistance the broader enterprise. NGN not simply signifies the communications enterprise integration pattern, also signifies the improvement of communications networks are now being shifted in the technology-driven business-driven pattern. Normally thought that, NGN hold the adhering to specialized benefits: I'm a specialist from cnc-machiningparts.com, normally analyzes all form of industries predicament, even though cnc-machiningparts.com gives the newest information, sector report and high quality merchandise, these kinds of as Sheet Steel cupboard Maker, China Sheet Steel Fabrication Machining Parts