(The global telecommunications industry is facing serious challenges. The impact of VoIP has caused the proportion of traditional voice business revenue to continue to decline; the rise of IPTV has led to a tens of times increase in bandwidth, while the charging price of video business has declined; the increase in data business has slowed down significantly. Operators face the detection of business transformation and significant cost reduction. Carrier-class Ethernet technology has become the main force for building metropolitan area networks in this change. In supporting multi-transaction carrying, promoting the development of Triple-Play transactions, relaying wireless networks and interconnected company networks, carrier-class Ethernet technology has gradually matured; in addition, the huge economic advantage of Ethernet is recognized as a solution to the cost of operators. The magic weapon of doubt. Carrier-class Ethernet technology (ie, carrier-class Ethernet technology) is a networking technology used to build large-scale metropolitan networks, so it is also called metropolitan Ethernet technology. Different organizations or companies have launched different market technologies for the network characteristics of operators in different countries and regions. Currently, there are mainly three approaches: the IETF-led Super Ethernet approach. The key skills are MPLSPWE (MPLSPseudoWireEmulate) plus VPLS (VirtualPrivateLANService);)
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