Patent Number: 6,298,061

Title: Port aggregation protocol

Abstract: A port aggregation protocol (PAGP) dynamically aggregates redundant links between two neighboring devices in a computer network through the exchange of aggregation protocol data unit (AGPDU) frames between the two devices. Each AGPDU frame contains a unique identifier corresponding to the device sourcing the frame and a port number corresponding to the port through which the frame is forwarded. The exchange of AGPDU frames and the information contained therein allows the neighboring devices to identify those ports corresponding to the redundant links. Each device then dynamically aggregates its ports corresponding to the redundant links into a logical aggregation port (agport) which appears as a single, high-bandwidth port or interface to other processes executing on the device.

Inventors: Chin; Hon Wah (Palo Alto, CA), Fine; Michael (San Francisco, CA), Finn; Norman W. (San Jose, CA), Hausman; Richard J. (Soquel, CA)

Assignee: Cisco Technology, Inc.

International Classification: H04L 12/46 (20060101); H04L 12/56 (20060101); H04L 012/28 ()

Expiration Date: 10/02/2018