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...http://www.google.com.au/patents/US7209435?utm_source=gb-gplus-sharePatent US7209435 - System and method for providing network route redundancy across Layer 2 devices
System and method for providing network route redundancy across Layer 2 devices
