Cisco Technology, Inc.

Richard F Sustek

Kenneth M Buckland

Riccardo G Dorbolo

Barry W Field

Earl B Manchester

Jan C Hobbel

Virendra Kumar Budhraja

A synchronous bus for a telecommunications node includes a frame repeating at a defined interval. Each frame includes a plurality of service channels. In at least one frame, a service channel individually transports traffic for a DS-0 connection. A set of service channels in the frame together transport an asynchronous transfer mode (ATM) cell.

Method and system for transporting synchronous and asynchronous traffic on a synchronous bus of a telecommunications node

Replacing the functionality of an active digital loop carrier subsystem (DLCSS) or active module with a standby DLCSS or standby module in an IP addressable telecommunication switch is effected by providing only a single externally-known IP address for the module pair and then swapping the IP address of the active module for the IP address of the standby module so that externally-connected devices recognize only the IP address for the module in use. A central network management station in communication with a local nonvolatile memory element controls the IP address swapping.

Method for switching between active and standby units using IP swapping in a telecommunication network

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Petaluma, CA, United States of America

Richard F Sustek