第七节QoS一、QoS概述QoS是Quality of Service的缩写,即业务质量(保证)。QoS是通信的一个重要追求目标。DOCSIS的QoS的主要机理,是将数据包分类成业务流,业务流是一串提供特定的QoS的单向数据包,CM和CMTS通过对通信量的整理、监控,并...第七节QoS一、QoS概述QoS是Quality of Service的缩写,即业务质量(保证)。QoS是通信的一个重要追求目标。DOCSIS的QoS的主要机理,是将数据包分类成业务流,业务流是一串提供特定的QoS的单向数据包,CM和CMTS通过对通信量的整理、监控,并按照业务流所提供的QoS参数来进行优先级的排序,从而保证该业务的质量。展开更多
Current research activities on the problem of key management in group communicauon system include towareas : one to solve the problem of key updating and distribution in large dynamic multicast groups; another to solv...Current research activities on the problem of key management in group communicauon system include towareas : one to solve the problem of key updating and distribution in large dynamic multicast groups; another to solvethe problem of key agreement in the DPGs(dynamic peer groups). The two research areas are independent with eachother. In this paper, we show a new research direction, under which we can effectively combine the correspondingtechniques in these two fields to solve new problems, and also give a good demonstration that through combining theGDH techniques of key agreement m DPGs and our techniques of key management in large dynamic multicast groups,we present a robust and fault-tolerant key management protocol suite in large dynamic multicast group. The protocolsuite solve the problem of SPOF(single point of failure)which universally exists in center-oriented key managementprotocols and is robust and fault-tolerant.展开更多
文摘第七节QoS一、QoS概述QoS是Quality of Service的缩写,即业务质量(保证)。QoS是通信的一个重要追求目标。DOCSIS的QoS的主要机理,是将数据包分类成业务流,业务流是一串提供特定的QoS的单向数据包,CM和CMTS通过对通信量的整理、监控,并按照业务流所提供的QoS参数来进行优先级的排序,从而保证该业务的质量。
文摘Current research activities on the problem of key management in group communicauon system include towareas : one to solve the problem of key updating and distribution in large dynamic multicast groups; another to solvethe problem of key agreement in the DPGs(dynamic peer groups). The two research areas are independent with eachother. In this paper, we show a new research direction, under which we can effectively combine the correspondingtechniques in these two fields to solve new problems, and also give a good demonstration that through combining theGDH techniques of key agreement m DPGs and our techniques of key management in large dynamic multicast groups,we present a robust and fault-tolerant key management protocol suite in large dynamic multicast group. The protocolsuite solve the problem of SPOF(single point of failure)which universally exists in center-oriented key managementprotocols and is robust and fault-tolerant.
