Throughout
the developing history of optical transmission, it is actually a process that bandwidth
capacity constantly promoting and business efficiency continuous optimizing, while
accompanied by a series of new problems and challenges and solutions generated.
With the
rapid development of wireless data, home broadband and leased line services,
bandwidth demand continuously rise,optical transmission experienced continuous
evolution of technical solutions and network architecture (PDH, SDH, MSTP, Huawei WDM
and OTN) - compared with PDH system, Huawei SDH not only enhanced capacity and but
also improved network efficiency and operation and maintenance; with the
development of network IP, SDH gradually evolve to MSTP platform; However, for
the trunk line and urban core, the lack of capacity gradually highlighted, so
the development of WDM is imperative.
In this process, Huawei adhere to customer-centric, and strive to
go beyond, self-dependent innovation. From OTN stage initially to 100G, from
super 100G to T-SDN commercial use globally, Huawei experienced 20 years of accumulations
in optical transport field, from the "precedency" to "excellence."
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