公开(公告)号：WO2007092132A2

公开(公告)日：2007-08-16

申请号：PCT/US2007/001091

申请日：2007-01-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： NARAYANAN, Manoj, T. ,  HEBBAR, Hemant, K. ,  PARAMESWARANNAIR, Vinayakumar, V. ,  TAN, Eden ,  SMITH, Michael, R. ,  FINN, Norman, W.

CPC classification number: H04L49/557 ,  H04L49/357 ,  H04L49/552 ,  H04L49/70

Abstract: A system and method detects and responds to failures occurring in a virtual switch. The virtual switch is formed from two or more physical switches interconnected by a Virtual Switch Link (VSL). One physical switch is elected the Master, and it executes a link aggregation protocol for the virtual switch. If the VSL fails, one of the other physical switches assumes that it should become the Master for the virtual switch, and it begins executing the link aggregation protocol. By adding information unique to the physical switches in the control packets of the link aggregation protocol, remote switches can identify when the VSL fails, and report this condition to the original Master. In response, the original Master or the new Master takes corrective action.

Abstract translation: 系统和方法检测并响应虚拟交换机中发生的故障。 虚拟交换机由两个或更多物理交换机组成，通过虚拟交换机链路（VSL）互连。 一台物理交换机被选为Master，并为虚拟交换机执行链路聚合协议。 如果VSL发生故障，其他物理交换机之一假定它应成为虚拟交换机的主设备，并开始执行链路聚合协议。 通过在链路聚合协议的控制分组中添加对于物理交换机唯一的信息，远程交换机可以识别VSL何时失效，并向原始主站报告这种情况。 作为回应，原来的主人或新主人采取纠正措施。