In 2006, World Telecommunications Exhibition period, the Metro Ethernet Forum (MEF) announced that ARRIS its 100 members to join the Forum. Prior to this, MEF to join the wave of signing off a wave, the number of members in the past 6 months increased by 50%. There are indications that carrier-grade Ethernet in the next 5 years will be leap growth. “IP Ethernet is a natural language of expression.” Siemens Vice President Hans, explaining the technology’s core strengths. However, the lack of many of the traditional carrier-grade Ethernet features, such as Service Quality (QoS), operations, Management And maintenance, etc. Therefore, “carrier class” combined with Ethernet, not only to the expansion of Ethernet access to more space, leaving telecom operators in the access network, gained new ideas to achieve IP Network Full smooth docking. In the new year, many operators and manufacturers began to Carrier Ethernet for more attention. To be truly carrier-class Ethernet performance, service quality, reliability, Network Security And network management become crucial issues. ? In service quality. Early main bearing Ethernet LAN data services, so do not differentiate quality of service. However, an integrated telecommunications network carrying business requirements, the traditional type of Ethernet traffic that does not distinguish between the “best effort” mechanism is difficult to guarantee real-time services such as voice and video quality. Achieve QoS with IntServ (Integrated Services Architecture) and DiffServ (Differentiated Services Architecture), Ethernet Netcom Always use the latter. Now, with the classification, mapping, congestion control, queue scheduling a range of services such as the introduction of quality assurance technology, Ethernet QoS capability of making a fundamental upgrade. ? In reliability. The use of traditional Ethernet link aggregation and spanning tree protocol protection, link aggregation and port line consuming resources in the link failure recovery time in seconds level, far from meeting the requirements of telecom networks. Using MPLS, RPR technologies, Ethernet could also have ability to quickly correct the problem. For example, RPR’s spatial reuse technology, equity mechanisms for enhancing the functions of traditional Ethernet, and even formed ring topology, using Gigabit or Gigabit Ethernet interconnect, composed of the high capacity ring network links, via ring Road detection, protection switching technology. ? In network security. The safety of traditional Ethernet VLAN technology has been divided by a virtual network segment to be addressed. But with the development of the Internet in recent years, network worms and other network often subjected to attacks by viruses and hackers, the whole network paralysis cases have occurred, the effective bandwidth of legitimate users, the users Information Security Hardly guaranteed. Therefore, the introduction of carrier-class networks, we must consider how to ensure network security issues. More common Ethernet security solutions through ACL (access control list), or Filter Database to filter the illegal data. ? In network management. Current Carrier Ethernet has been able to provide a comprehensive powerful network management functions, and provides unified end to end network management capabilities, cluster management, stack management, and visual graphics management. In addition to the conventional configuration, Monitor , User data such as sampling and analysis, improve network management can automatically discover network failure, and the timely recovery, can automatically discover new nodes to join the business, able to configure end-to-business; network is also able to measure the performance of end to end, real-time control the operation of the network. , Of course, provided the industry today, QoS, reliability, technology and Ethernet not solve all problems, there are still some issues to resolve, which still have to rely on the industry to work together to achieve. Fortunately, many global operators recently have begun a large-scale introduction of Carrier Ethernet technology. For example, Beijing Siemens Communicate Network Co., Ltd. (SCNB) carrier-grade Ethernet solutions are in China Telecom Chongqing, Hubei and Jiangsu provinces and cities are network companies started trial operation. The program is two-story MAN Solution, integrating the ring protection, virtual local area network switching and operations, enhanced QoS capabilities to protect the industry of advanced technology. Indonesia was chosen operator PTIndosat Shanghai Bell Alcatel’s solution, for the first time introduced in the carrier-class Ethernet services, including VPLS (Virtual Private LAN Service), including boutique Ethernet. We can optimistically expect carrier-grade Ethernet will be given within the next few years the rapid development of broadband telecommunications networks play an important role. [Keywords]: Telecommunications Ethernet IP Comment Large In Small I am a professional writer from China Manufacturers, which contains a great deal of information about wicker cat bed , tropical marine fish, welcome to visit! Follow
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