S - sonet 中文

sonet SONET ＝Synchronous Optical N...

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In this paper we firstly illustrate the feasibility and advantages of eliminating intermediate layers , e . g . sdh / sonet and atm , to map the ip packets directly into wavelength channels . under this framework , we then f ocus our interest on the resource allocation of ip over wdm networks 第二章研究了ipoverwdm網中支持qos的資源分配算法，分兩種方法予以研究：一為基于光層的方法，采用固定選路后，資源分配問題就能簡化為波長分配問題，從而可大大簡化網絡的控制和管理。
In the recent year , with growth of requirements from both voice and data networks , the access network presents an even greater challenge when high bandwidth requirements are combined with high price sensitivity ; legacy solutions based on either sonet / sdh or ethernet are neither cost - effective nor scalable as an alternative for an optical access solution 近年來,隨著語音數據網絡業務的需求增長,在帶寬要求和高價格敏感性的問題上,接入網面臨前所未有的挑戰;傳統的基于sonet / sdh或以太網的接入方式無論成本還是可擴展性都無法與光接入技術競爭。
With the development of networking technologies and new services of internet , there is an explosive growth trend of internet traffic , which needs tremendous network bandwidth . some traditional ip backbone networks are ip / atm / sonet architecture . current transport rate of sonet or sdh is mostly 2 . 5gb / s and 10gb / s 本文研究的是和wdm光網絡的有關問題,主要有以下三個方面的內容: wdm網絡里各種保護手段的線性規劃模型,一種新的基于link - path方式的wdm網絡中稀疏波長轉換的線型規劃模型,以及光跡( lighttrail )中的整數線型規劃設計。
These cause the mismatch between the need and the traditional backbone network in which the sonet / sdh technology is dominant . it is urgent of the service provider to find another technology that has more performance - to - price than ever to overcome this mismatch 現有的以sonet sdh技術為主的廣域骨干網絡越來越不能適應這種形勢，迫切需要一種新的性價比更高的技術來滿足人們對信息的需求。
The most efficient approach is called full concatenation , which involves joining the multiple pipes that make up a sonet link . the larger the concatenated signal , the greater the potential statistical gain from using atm bandwidth management 效率最高的方法被稱為全面連入，它把構成sonet鏈路的多個通道連結起來，連在一起的信號越多，從使用atm帶寬管理得到的潛在統計收益就越大。
The combination of full concatenation of the sonet payload and atm bandwidth management also gives carriers the ability to offer new data services , such as virtual private network services at native lan speeds Sonet負荷的全部連入與atm帶寬管理的結合也給予了電話公司提供新型數據服務的能力，如以本地局域網的速度提供虛擬專網服務。
Freed from the rigid provisioning required by sonet , carriers can dynamically allocate bandwidth using atm virtual paths and virtual circuits on a temporary or permanent basis 這樣，電話公司就從sonet所要求的過死提供中解脫出來，能夠在臨時的或永久的基礎上動態地分配使用atm虛擬通路或虛擬電路的帶寬。
At its core , sonet uses time - division multiplexing ( tdm ) - - a technology many experts think is outdated and incapable of delivering the high - speed data services users are demanding 其核心是使用了時分多路復用技術（ tdm ），這是一項很多專家認為已過時，不能提供用戶要求的高速數據服務的技術。
Cwdm provides wide bandwidths at low cost , which can be applied to point - to - point , ethernet , sonet rings etc . this assay designed the main control unit in cwdm system 稀疏波分復用系統cwdm用很低的成本提供了很高的接入帶寬，適用于點對點、以太網、 sonet環等各種流行的網絡結構。
The main transmission media of sonet / sdh is fiber . sdh is developed with optical networks and has become the main hierarchy of today ’ s transmission network 光同步數字傳送網( sonet / sdh )主要以光纖為傳輸媒質,它隨著光網絡的發展不斷壯大,成為現代傳輸網絡的主要傳送體制。
Over the past 10 years , carriers have installed fiber - optic cable throughout every major metropolitan area in the u . s . and have standardized the use of sonet equipment 在過去十年中，電話公司在美國的各個大城市中都鋪設了光纜，并對sonet設備的使用進行了標準化。
Equipment vendors are saying ethernet in the wide area may have as little as one - fifth the cost of sonet and one - tenth the cost of atm 設備供應商稱，廣域以太網的成本只有同步光纜網的五分之一或者atm的十分之一。
By the way , this poem is a sonet , a particular kind of poem that reached a peak in renaissance time in england and italy 這首詩是一首十四行詩。十四行詩是詩歌體裁的一種，在文藝復興時期的英國和意大利非常興盛。
However , some experts say sonet ' s tdm structure is too rigid for flexible provisioning or bandwidth sharing 但是，有些專家認為， sonet的時分多路復用結構（ tdm ）太死，不利于靈活地提供服務或實現帶寬共享。
Sonet . . telecommunications - synchronous optical network - operations , administration , maintenance , and provisioning oam p communications - protection switching fragment 電信.第1部分:同步光導網絡
Sonet : telecommunications - network - to - customer installation interfaces - synchronous optical network physical media dependent specification : single mode fiber 電信.網絡與用戶裝置接口.同步光纖網
Sonet : telecommunications - network - to - customer installation interfaces - synchronous optical network physical media dependent specification : electrical 電信.網絡與用戶裝置接口.同步光纖網
Network and customer installation interfaces - sonet physical layer interface and mapping specifications for atm applications 網絡和用戶安裝接口. atm的sonet物理層接口和映射規范
Sonet has long been the medium of choice for delivering services over metropolitan - area networks ( man ) 同步光纜網（ sonet ）早已是在城域網（ man ）上提供服務的媒介選擇。

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sonet

sonet SONET ＝Synchronous Optical N...

song

Equipment vendors are saying ethernet in the wide area may have as little as one - fifth the cost of sonet and one - tenth the cost of atm 設備供應商稱，廣域以太網的成本只有同步光纜網的五分之一或者atm的十分之一。

By the way , this poem is a sonet , a particular kind of poem that reached a peak in renaissance time in england and italy 這首詩是一首十四行詩。十四行詩是詩歌體裁的一種，在文藝復興時期的英國和意大利非常興盛。

However , some experts say sonet ' s tdm structure is too rigid for flexible provisioning or bandwidth sharing 但是，有些專家認為， sonet的時分多路復用結構（ tdm ）太死，不利于靈活地提供服務或實現帶寬共享。

Sonet . . telecommunications - synchronous optical network - operations , administration , maintenance , and provisioning oam p communications - protection switching fragment 電信.第1部分:同步光導網絡

Sonet : telecommunications - network - to - customer installation interfaces - synchronous optical network physical media dependent specification : single mode fiber 電信.網絡與用戶裝置接口.同步光纖網

Sonet : telecommunications - network - to - customer installation interfaces - synchronous optical network physical media dependent specification : electrical 電信.網絡與用戶裝置接口.同步光纖網

Network and customer installation interfaces - sonet physical layer interface and mapping specifications for atm applications 網絡和用戶安裝接口. atm的sonet物理層接口和映射規范

Sonet has long been the medium of choice for delivering services over metropolitan - area networks ( man ) 同步光纜網（ sonet ）早已是在城域網（ man ）上提供服務的媒介選擇。