Invention Grant
US08014301B2 System and method for providing network route redundancy across layer 2 devices 有权
在第2层设备上提供网络路由冗余的系统和方法

System and method for providing network route redundancy across layer 2 devices
Abstract:
Systems and methods are described for providing network route redundancy through Layer 2 devices, such as a loop free Layer 2 network having a plurality of switching devices. A virtual switch is coupled to the loop free Layer 2 network, the virtual switch having two or more switches configured to transition between master and backup modes to provide redundant support for the loop free Layer 2 network, the switches communicating their status through use of a plurality of redundancy control packets. The system also includes means for allowing the redundancy control packets to be flooded through the Layer 2 network. The means may include time-to-live data attached to the redundancy control packet which is decremented only when the packets are transferred through devices which are configured to recognize the protocol used in redundancy control packets.
Information query
Patent Agency Ranking
0/0