发明授权
US07023856B1 Method and system for providing differentiated service on a per virtual circuit basis within a packet-based switch/router
有权
在基于分组的交换机/路由器中的基于虚拟电路的基础上提供差分服务的方法和系统
- 专利标题： Method and system for providing differentiated service on a per virtual circuit basis within a packet-based switch/router
- 专利标题（中）： 在基于分组的交换机/路由器中的基于虚拟电路的基础上提供差分服务的方法和系统
-
申请号： US10056159申请日： 2002-01-24
-
公开(公告)号： US07023856B1公开(公告)日： 2006-04-04
- 发明人: Douglas Markham Washabaugh , Thomas Anderson , Kathryn Fuller
- 申请人： Douglas Markham Washabaugh , Thomas Anderson , Kathryn Fuller
- 申请人地址： US CA Santa Clara
- 专利权人： Riverstone Networks, Inc.
- 当前专利权人： Riverstone Networks, Inc.
- 当前专利权人地址： US CA Santa Clara
- 代理商 Mark A. Wilson
- 主分类号： H04L12/56
- IPC分类号： H04L12/56
摘要：
Different levels of service are provided to different types of traffic within a single virtual circuit (VC) by converting the traffic from fixed-length cells to variable-length packets, classifying the packets based on information in the packet headers, associating the packets with a VC, and then implementing class-specific enqueuing and dequeuing of the classified packets on a per-VC basis. Classified packets are dequeued from VC-specific and class-specific queues into VC-specific segmentation and re-assembly (SAR) queues according to an algorithm that is a function of traffic class. The dequeuing algorithm determines the level of service that is provided to the different classes of traffic within each VC. Packets are dequeued from the VC-specific SAR queues and converted back to fixed-length cells according to an algorithm that arbitrates among multiple VC-specific SAR queues. The technique for managing traffic can be carried out within an Ethernet switch/router that includes input and output ATM interfaces.
信息查询
