Browse Prior Art Database

Method to Economically Introduce Dynamic Bandwidth Provisioning

IP.com Disclosure Number: IPCOM000018977D
Original Publication Date: 2003-Sep-25
Included in the Prior Art Database: 2003-Sep-25
Document File: 2 page(s) / 418K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

A carrier's optical network can support multiple types of service models, e.g. Permanent Provisioned Bandwidth service or Bandwidth on Demand service. The main driver for the bandwidth on demand service is the expectation of the bandwidth user, who might be an Internet Service Provider (ISP), Application Service Provider (ASP) or an enterprise, that the average cost for the service decreases. The state-of-the-art method to offer dynamic services today is based on a control plane approach where connections can be dynamically created and deleted. It is basically an approach using signaling protocols (e.g. Generalized Multi-Protocol Label Switching-GMPLS) to set-up or tear down a connection in the transport network. The disadvantage of this method are high investments needed to establish the appropriate technology whereas carriers are not sure about the success of this new transport services. Further, the control plane approach provides too much functionality for isolated applications. The present invention provides a new solution for scheduled bandwidth service and the bandwidth on demand service. A bandwidth on demand service is a service where no predictability of modification events is given. The according modifications have to be done on demand and are not known in advance. A scheduled bandwidth service is defined as a service aligned for modifications appearing in a periodic or other determined time pattern. This time pattern might cover hours, days, weeks or months. Since the occurrence of modification events for a connection can be predicted, the basic operations on the service can be planned in a time-scheduled manner.

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© SIEMENS AG 2003 file: 2003J07006.doc page: 1

Method to Economically Introduce Dynamic Bandwidth Provisioning

Idea: Dr. Hubert Jaeger, US-Reston; Arnold Monitzer, US-Reston

A carrier's optical network can support multiple types of service models, e.g. Permanent Provisioned Bandwidth service or Bandwidth on Demand service. The main driver for the bandwidth on demand service is the expectation of the bandwidth user, who might be an Internet Service Provider (ISP), Application Service Provider (ASP) or an enterprise, that the average cost for the service decreases. The state-of-the-art method to offer dynamic services today is based on a control plane approach where connections can be dynamically created and deleted. It is basically an approach using signaling protocols (e.g. Generalized Multi-Protocol Label Switching-GMPLS) to set-up or tear down a connection in the transport network. The disadvantage of this method are high investments needed to establish the appropriate technology whereas carriers are not sure about the success of this new transport services. Further, the control plane approach provides too much functionality for isolated applications.

The present invention provides a new solution for scheduled bandwidth service and the bandwidth on demand service. A bandwidth on demand service is a service where no predictability of modification events is given. The according modifications have to be done on demand and are not known in advance. A scheduled bandwidth service is defined as a service aligned for modifications appearing in a periodic or other determined time pattern. This time pattern might cover hours, days, weeks or months. Since the occurrence of modification events for a connection can be predicted, the basic operations on the service can be planned in a time-scheduled manner.

It is assumed that the number of destinations provided from the carrier to the user is limited. For the scheduled bandwidth service, a new component called a configurable scheduler is introduced on the transponder at the network edge. The proposed solution is shown in figure 1 and the network example in figure 2. Basically, the principle operation of the scheduler is an event scheduler where at certain points in time an event will reconfigure parameters...