Avaya Inc.

David S Holland

Luke Anthony Tucker

Benny Rodrig

William Melaragni

Bhum Chul Kim

Lee D Gibbons

Randall Budd Kramer

Michael A Tamny

Wayne Bortman

Dave Sueper

Fraser A McKinnon

Kenneth J O'Connor, Iii

Dicky A Pillai

Margaret L Kelley-Johnson

Roozbeh Ghorishi

Matthew A Chandler

In a media gateway, a single RTM is placed in bi-directional communication with a active TPM and also in bi-directional communication with a backup TPM. This is accomplished in part by implementation of a signaling and control bus interface between the LIU/Framer hardware of the RTM and the control processing unit (CPU) of the TPM. This interface provides for arbitration between multiple control sources, and for snooping of the input connection state and signaling information between the LIU/Framer and any other control entity. The interface also prevents contention by multiple control sources driving signal information to the LIU/Framer device.

Procedure and mechanisms for control and bearer redundancy of TDM-based service provider connections

The present invention is directed, in various embodiments, to a hardware supported duplication token for arbitrating active and standby module states, a weighted state of health exchange for identifying unhealthy module states and relative module health states, and a packet sequence number synchronization technique for maintaining desired levels of synchronization between the active and standby modules.

Mechanisms and algorithms for arbitrating between and synchronizing state of duplicated media processing components

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Rutland, MA, United States of America

David S Holland