公开(公告)号：US06430154B1

公开(公告)日：2002-08-06

申请号：US09636479

申请日：2000-08-10

申请人： Douglas H. Hunt ,  Bruce S. Northcote

发明人： Douglas H. Hunt ,  Bruce S. Northcote

IPC分类号： H04L1226

CPC分类号： H04L69/168 ,  H04L47/10 ,  H04L47/2416 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/245 ,  H04L47/50 ,  H04L47/521 ,  H04L47/60 ,  H04L47/621 ,  H04L47/6225 ,  H04L47/623 ,  H04L67/1002 ,  H04L69/16 ,  H04L69/18 ,  H04L2012/561 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04Q11/0478

摘要： A system and a method are disclosed for supporting multiple application traffic types over connection oriented networks. Data is received from multiple applications, for example in the form of data units, and is associated with a traffic type. The traffic type associated with a data unit indicates whether the data unit is inelastic traffic or elastic traffic. Data associated with inelastic traffic is mapped to at least one connection of a first connection type which provides for some amount of committed bandwidth, and limits on delay variation. Data associated with elastic traffic is mapped to at least one connection of a second connection type, which does not provide any committed bandwidth. Connections of the second connection type may ensure that elastic traffic data units that are accepted for transfer by the underlying network are delivered without loss due to network congestion, for example, by use of a flow control technique. A hierarchical scheduler may be employed to schedule transmissions of data units across connections organized into virtual trunks. The hierarchical scheduler may be used to ensure a high multiplexing gain with respect to connections within a single virtual trunk, as well as across multiple virtual trunks.

摘要翻译： 公开了一种用于通过面向连接的网络支持多个应用业务类型的系统和方法。 从多个应用程序接收数据，例如数据单元的形式，并与流量类型相关联。 与数据单元相关联的流量类型指示数据单元是否是非弹性流量或弹性流量。 与非弹性业务相关联的数据被映射到提供一定量的承诺带宽的第一连接类型和延迟变化限制的至少一个连接。 与弹性流量相关联的数据被映射到不提供任何承诺带宽的第二连接类型的至少一个连接。 第二连接类型的连接可以确保，例如通过使用流控制技术，被基础网络接受传输的弹性业务数据单元由于网络拥塞而不丢失地被传送。 可以采用分级调度器来调度跨组织到虚拟干线中的连接的数据单元的传输。 分级调度器可以用于确保相对于单个虚拟中继线内的连接以及多个虚拟中继线的高复用增益。