bidirectional ring network中文什么意思

bidirectional network: 雙向網(wǎng)絡(luò)
bidirectional linear switched ring: 雙向線性倒換環(huán)
bidirectional ms shared protection ring: 雙向復(fù)用段共享保護環(huán)
network, ring: 環(huán)狀網(wǎng)絡(luò)
ring network: 環(huán)路網(wǎng)絡(luò); 環(huán)網(wǎng); 環(huán)型網(wǎng)絡(luò); 環(huán)形網(wǎng)絡(luò); 環(huán)狀網(wǎng)路; 環(huán)狀網(wǎng)絡(luò); 拓?fù)洵h(huán)型網(wǎng)

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we study the cost of metro wdm in two aspects in chapter 2 . for the aspect of components, a bidirectional optical add-drop multiplexer ( boadm ) using fiber gratings and circulators is designed, and is cheaper, simple and appropriate compenent for single-fiber bidirectional ring networks ( sfbrn ) . for the aspect of network, after study the traffic-grooming problem and the cost of wdm ring networks, a layered network with a multi-hubs is presented to reduce the total number of the network ports
在第三章，我們搭建了一個可以實現(xiàn)多業(yè)務(wù)單纖雙向傳送的sdhwdm網(wǎng)絡(luò)平臺，以單根50km光纖作為物理媒質(zhì)，以muxdemux的為單纖雙向復(fù)用器件，以sdhwdm為傳輸手段，采用mstp技術(shù)，通過接入vlan模塊建成一個單纖雙向傳輸?shù)木钟蚓W(wǎng)，并以此為基礎(chǔ)通過接入圖像編解碼器實現(xiàn)單纖雙向視頻傳輸，為城域?qū)拵Ы尤刖W(wǎng)的多業(yè)務(wù)實現(xiàn)提供了范例。

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