Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2001-06-08
2002-05-28
Vincent, David (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395640
Reexamination Certificate
active
06396836
ABSTRACT:
TECHNICAL FIELD
The invention relates generally to an arrangement for establishing connections through a network based on AAL Type 2 technology and more specifically to predictive connection admission control in AAL Type 2 networks.
BACKGROUND OF THE INVENTION
“ITU-T I.363.2, B-ISDN AAL Type 2 Specification” defines and describes the function of AAL Type 2 which makes it possible to multiplex up to 256 different AAL Type 2 channels over one asynchronous transfer mode (ATM) connection.
To establish an end-to-end AAL Type 2 (AAL2) connection between two or more termination points, one or more AAL2 channels are cascaded. To relay the traffic from one AAL2 channel to another, relaying points are provided.
Resources have to be allocated in the network to assure that each individual end-to-end AAL2 connection, for each direction, is assigned a certain amount of bandwidth, and that a certain level of quality of service (QoS) can be guaranteed for that connection. Here, bandwidth means the number of bits per second that can be transmitted by a user of the connection, and QoS can be expressed in terms of end-to-end delay and delay variation, packet loss ratio, etc.
Thus, at the time when an AAL2 connection is established, the routing scheme in use must consider that appropriate resources are available to ensure that the network can guarantee the bandwidth and the QoS associated with the connection.
SUMMARY OF THE INVENTION
The object of the invention is to ensure that appropriate resources are available in a network when an AAL2 connection is established.
This is attained mainly in that the network is divided into resource domains, and that each resource domain is provided with a prediction connection admission control unit which comprises information about available resources for connection through its own resource domain as well as information about available resources for connections through the other resource domains of the network.
REFERENCES:
patent: 5373504 (1994-12-01), Tanaka et al.
patent: 5487065 (1996-01-01), Acampora et al.
patent: 5513178 (1996-04-01), Tanaka
patent: 5764961 (1998-06-01), Bhat
patent: 5774455 (1998-06-01), Kawase et al.
patent: 5898673 (1999-04-01), Riggan et al.
patent: 5943339 (1999-08-01), Mauger
patent: 5949791 (1999-09-01), Byers et al.
patent: 5970064 (1999-10-01), Clark et al.
patent: 6317438 (2001-11-01), Trebes, Jr.
patent: 2 324 435 (1998-10-01), None
patent: 97/31495 (1997-08-01), None
Mauger et al, “QoS Guarantees for Multimedia Services on a TDMA-Based Satellite Network”, IEEE Communications Magazine, Jul. 1997, pp. 56-58.
Werner et al, “ATM-Based Routing in LEO/MEO Satellite Networks with Intersatellite Links”, IEEE Journal on Selected Areas, vol. 15, No. 1, Jan. 1997, pp. 69-82.
Nixon & Vanderhye P.C.
Telefonaktiebolaget LM Ericsson (publ)
Vincent David
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