The device selected by the administrator must allow connectivity between hosts without sharing bandwidth 裝置藉著管理人選擇一定不分享帶寬而允許在主人之間的連接性。
Hierarchial link - sharing allows multiple agencies , protocol families or traffic types to share bandwidth on a link in a controlled fashion 分層次的鏈路共享允許多個代理、協(xié)議組或流量類型以一種受控的方式在一個鏈路上共享帶寬。
Ethernet provides best effort service , which does not provide quality of service and equity for different users . the topology structure of epon system contains many onus , which share bandwidth in the uplink direction using tdm method 由于以太網(wǎng)提供盡力而為的服務(wù),不能保證不同業(yè)務(wù)的服務(wù)質(zhì)量以及不同用戶的公平性;另外, epon系統(tǒng)的拓?fù)浣Y(jié)構(gòu)是由多個onu采用時分復(fù)用方式共享上行鏈路帶寬。
For instance , a new property of network traffic ( self - similarity ) has been observed in diverse networking contexts . some old protocols , policies and evaluate methods which are based on previous markov network model are not suitable for this self - similar traffic . and when tcp data share bandwidth with udp data that is popular for multimedia applications over the internet , it also causes fairness problem 多媒體業(yè)務(wù)流會給整個網(wǎng)絡(luò)的性能帶來極大的影響,如:多媒體業(yè)務(wù)導(dǎo)致網(wǎng)絡(luò)流自相似現(xiàn)象加重,使網(wǎng)絡(luò)的原有的markov模型基礎(chǔ)上的協(xié)議、策略,及其評價方法不夠準(zhǔn)確,導(dǎo)致丟失率上升,網(wǎng)絡(luò)性能下降;多媒體業(yè)務(wù)中使用的大量udp包與普通數(shù)據(jù)流tcp包共存時對公平性的影響等等。
Most of existing vod bandwidth - sharing strategies are analyzed in this dissertation , and a new strategy is proposed , named as layer - staggered segmental broadcasting ( lsb ) strategy . lsb can share bandwidth effectively among users requesting the same movie program , thus save the server ' s bandwidth and provide service to large numbers of users with limited resource 本文分析了現(xiàn)有的各種vod帶寬復(fù)用策略,創(chuàng)造性地提出了層次分段交替廣播服務(wù)策略lsb ,該策略能有效實現(xiàn)點(diǎn)播同一節(jié)目的多個用戶間的帶寬共享,節(jié)省服務(wù)器的帶寬資源,實現(xiàn)有限資源下的超大規(guī)模vod服務(wù)。