Cisco Technology, Inc.

Virendra Kumar Budhraja

Richard F Sustek

Vinod K Nair

An ATM/TDM cross-connection in a digital loop carrier (DLC) network providing switching and bandwidth management facilities. TDM traffic is encapsulated in ATM cells and transported from network terminations to subscriber terminations in a digital loop via a plurality of digital loop carrier switching systems (DLCSSs). The DLCSSs are configured such that TDM traffic encapsulated in ATM cells may be transported from the network termination to the subscriber termination without having to perform TDM switching at the intermediate DLCSSs.

Method and apparatus for switching and managing bandwidth for cross-connection

A system and method for providing dynamic switching functionality in an access network which supports only static switching. Dynamic switching is used to provide connections between a local digital switch and subscribers of the access network wherein the subscribers are connected to remote terminals which only support a static switching protocol. A dynamic switching subsystem is coupled to the local digital switch via a first communication link and coupled to the remote terminals using one or more second communication links. The remote terminals provide nailed up connections between the network terminations of the second communications links coupled to the remote terminals and the subscriber terminations connected to the subscribers. The dynamic switching subsystem provides dynamic switching between network terminations of the first communication link and network terminations of the second communication link. To facilitate dynamic switching, unique call reference values are assigned to the network terminations of the second communication link in the dynamic switching channel. The unique call reference values uniquely identify each of the communication channels of the second communication link from the dynamic switching subsystem to the remote terminals. The unique call reference values are used to provide dynamic connections between network terminations of the first communication link and network terminations of the second communication link in the dynamic switching subsystem.

System and method for providing dynamic switching functionality in a static switching environment

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.

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Petaluma, CA, United States of America

Virendra Kumar Budhraja