Cisco Systems, Inc.
Fast, reliable, and extensible active-standby multi-vendor link redundancy

Abstract:

Network link redundancy may be provided. A node comprising a virtualization of a network topology comprising a plurality of devices may be provided. Next, the node may be provided with at least two ports. Each of the at least two ports may respectively comprise an inside facing portion that uses a first protocol and an outside facing portion that uses a second protocol. The node may operate using the first protocol. A behavioral mode of the at least two ports may be controlled and the behavioral mode of the at least two ports may be communicated to at least one other node outside the node.