segmentation and reassembly (sar) 中文意思是什麼
segmentation and reassembly (sar)
解釋
拆分和組裝- segmentation : n. 1. 分割；切斷。2. 【生物學】（細胞）分裂；（動物）分節；斷裂。
- and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
- reassembly : 再會合
- sar : ＝1 Sons of the American Revolution 2 South African Republic 3 Special Administrative Region 特別...
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Secondly, the paper describe the principle of atm network, and the function of ' sar " ( segmentation and reassembly ) and the format of packet aal5, and introduce the basic idea of ipoa, and the design project and implementing of the control chip. later, the paper introduce the logic function and operational principle of packet buffer control chip and prove the feasibity and correctness of the arithmetic. at last the paper introduce crc - 32 arithmetic based on look up and implement it with hardware
接著詳細論述了核心路由器atm網路實現的原理，包括「 sar 」 （ segmentationandreassembly ）功能和aal5報文的格式， ipoa基本思想，以及控制晶元的設計方案和實現途徑等。然後又論述報文緩存區控制晶元的工作原理和邏輯功能等，並對演算法的可行性，正確性等進行論證。最後介紹了一種基於查表的crc - 32演算法的原理及其硬體實現。 -
Also, to achieving stability, internal speedup is needed. compared to fixed length switch, by supporting variable length packet switch, there is no need for segmentation and reassembly circuits, and no speedup is necessary to support sar. this dissertation first studies variable length packet switch in unbuffered crossbar
另外，變長交換不需要在數據交換前和交換后進行分割和組合操作，因此在入埠處不需要一個額外的切割模塊，而在出埠處則不需要一個額外的組合定長信元的模塊，節省了存儲器資源以及信元重排序的規模。
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