The 1500 - byte maximum ethernet frame size is inefficient for large transfers over high - speed ethernet lans 在高速以太局域網(wǎng)上進(jìn)行量大的傳輸,最大為1500字節(jié)的以太網(wǎng)幀是不夠的。
Chapter two provides ethernet protocols , issues on ethernet packets , especially on ethernet frame , ip and udp packets . also it provides the protocols of ts packets which are transmitted in catv network 第二章給出了以太網(wǎng)網(wǎng)絡(luò)協(xié)議,重點(diǎn)討論了以太網(wǎng)數(shù)據(jù)報(bào)的協(xié)議,尤其是以太幀和ip及udp數(shù)據(jù)報(bào)協(xié)議,并且給出了在catv網(wǎng)絡(luò)中傳送的ts流的報(bào)文協(xié)議。
Anymore , we study on how to reduce ethernet frame delay and access time uncertainty about real time communication . the main content in our paper include : the first chapter introduces basic conception about computer network congestion control 本文的主要內(nèi)容包括:第一章介紹計(jì)算機(jī)網(wǎng)絡(luò)擁塞控制的基本概念,包括擁塞和擁塞控制的概念, internet中擁塞發(fā)生的原因,從數(shù)據(jù)鏈路層、網(wǎng)絡(luò)層和傳輸層分別介紹擁塞控制算法的概況。
In the first part of this thesis , current situation of the access network and the technical of pon are introduced briefly . then , the epon system structure , osi protocol model , especially the mpcp sublayer are introduced , the epon control frame and data frame changed form ethernet frame are analyzed 本文首先介紹接入網(wǎng)技術(shù)的發(fā)展?fàn)顩r和無源光網(wǎng)絡(luò)的主要技術(shù)類型,以及epon系統(tǒng)的網(wǎng)絡(luò)結(jié)構(gòu)、 osi分層模型,重點(diǎn)介紹epon系統(tǒng)特有的mpcp子層,分析epon系統(tǒng)對以太網(wǎng)數(shù)據(jù)幀所做的修改和新添加的epon控制幀。