US 5,848,144 A · Switch cutover with paced transition

Abstract

According to a system for switched cutover with paced transition, subscribers are transitioned to a new communication system while the capacity needed by the cutover facility is minimized. A cutover facility between a pre-cut switch and a post-cut switch for transitioning a first and a second set of subscribers from a first communication system to a second communication system is established. The migration of the first and the second set of subscribers from the pre-cut switch to the post-cut switch is begun. A transition midpoint is identified. The transition midpoint occurs when the number of subscribers migrated to the post-cut switch is equal to the number of subscribers remaining on the pre-cut switch. End office traffic routed to the pre-cut switch is then shifted to the post-cut switch in response to the transition midpoint being identified. Finally, the remaining subscribers are shifted to the post-cut switch. This transition may be performed using a slice-cut dial-with-dial transfer.

Claims23

Dependent claims

A method of managing network traffic including end office traffic comprising the steps of:

building a cutover facility for transitioning a first and a second set of subscribers from a first communication system to a second communication system, wherein the cutover facility couples a pre-cut switch to a post-cut switch;
assigning a route to the pre-cut switch associated with the first communication system for the first and second set of subscribers, each subscriber having a unique directory number;
assigning a route for the first and second set of subscribers to the post-cut switch associated with the second communication system;
migrating subscribers in at least one of the first and second sets of subscribers from the pre-cut switch to the post-cut switch;
identifying a transition midpoint, the transition midpoint being the point when approximately half of the subscribers have been migrated from the pre-cut switch to the post-cut switch;
and
shifting end office traffic routed to the pre-cut switch to the post-cut switch in response to the transition midpoint being identified.

4 more elements

Dependencies are inferred from the claim text.

Switch cutover with paced transition

Life of this patent

Switch cutover with paced transition

Life of this patent

Abstract

Claims23