Switch cutover with paced transition
First Claim
1. 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.
1 Assignment
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Accused Products
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.
58 Citations
23 Claims
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1. A method of managing network traffic including end office traffic comprising the steps of:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of managing network traffic and end office codes, comprising the steps of:
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building 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; beginning the migration of the first and the second set of subscribers from the pre-cut switch to the post-cut switch; identifying a transition midpoint, the transition midpoint being the point when the traffic demand of the number of subscribers migrated to the post-cut switch is equal to the traffic demand of the number of subscribers on the pre-cut switch; shifting the end office codes to the post-cut switch; and shifting subscribers in at least one of the first and second sets of subscribers on the pre-cut switch to the post-cut switch. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification