Multiplex communications – Fault recovery
Patent
1997-07-30
1999-09-28
Patel, Ajit
Multiplex communications
Fault recovery
370221, 370400, G01R 3108, H04L 1228
Patent
active
059599685
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.
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Chin Hon Wah
Fine Michael
Finn Norman W.
Hausman Richard J.
Cisco Systems Inc.
Patel Ajit
Pizarro Ricardo M.
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