Resumes
Resumes
Zbigniew Dziong Phones & Addresses
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Eatontown, NJ
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197 1000 Oaks Dr, Atlantic Highlands, NJ 07716 (732) 708-9424
Publications
Us Patents
Admission Control Adjustment In Data Networks Using Maximum Cell Count
View pageUS Patent:
6697369, Feb 24, 2004
Filed:
Sep 28, 1999
Appl. No.:
09/407721
Inventors:
Zbigniew Marek Dziong - Atlantic Highlands NJ, 07716
Wlng Cheong Lau - Eatontown NJ, 07724
Wlng Cheong Lau - Eatontown NJ, 07724
International Classification:
H04L 1228
US Classification:
3703952, 37039521
Abstract:
Tuning for connection admission control (CAC) algorithms in broadband ATM networks is accomplished using an overbooking technique based on aggregate effective bandwidth, AEBW, as an approximation to required bandwidth for given levels and classes of network traffic. An overbooking gain factor, , is developedâtypically in a network operations systemâbased on long-term measurements supplied periodically by network switches. This over-booking gain is derived from a count of cells arriving in periodic time slots and is updated from time to time based on measurement values sent from individual switches to the operations system. Presently disclosed embodiments provide tools that can be used for tuning call/traffic admission control and for network bandwidth management and dimensioning purposes in a variety of packet-switched networks.
Learning-Based Admission Control Adjustment In Data Networks
View pageUS Patent:
6791941, Sep 14, 2004
Filed:
Sep 28, 1999
Appl. No.:
09/407733
Inventors:
Zbigniew Marek Dziong - Atlantic Highlands NJ
Hongbin Ji - Robbinsville NJ
Hongbin Ji - Robbinsville NJ
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
G01R 3108
US Classification:
370229, 370395
Abstract:
Tuning for connection admission control (CAC) algorithms in broadband ATM networks is accomplished using an overbooking technique based on aggregate effective bandwidth, AEBW, as an approximation to required bandwidth for given levels and classes of network traffic. An overbooking gain factor, is developedâtypically in a network operations systemâbased on long-term measurements supplied periodically by network switches. In operation, overbooking is introduced in small increments until a threshold (such as a cell loss threshold) is reached, at which point overbooking is reduced in a large step. A variety of network measurements can be used to apply the present invention to a range of traffic and service contexts.
Three-Stage Switch Fabric With Buffered Crossbar Devices
View pageUS Patent:
7023841, Apr 4, 2006
Filed:
Dec 14, 2001
Appl. No.:
10/017174
Inventors:
Martin S. Dell - Bethlehem PA, US
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Wei Li - Basking Ridge NJ, US
Matthew Tota - Clinton NJ, US
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Wei Li - Basking Ridge NJ, US
Matthew Tota - Clinton NJ, US
Assignee:
Agere Systems Inc. - Allentown PA
International Classification:
H04L 12/50
US Classification:
370388, 370380, 340 222, 340 244
Abstract:
A switch fabric for routing data has a switching stage configured between an input stage and an output stage. The input stage forwards the received data to the switching stage, which routes the data to the output stage, which transmits the data towards destinations. Each input device of the input stage transmits bids to the crossbar devices of the switching stage to request connections through the switching stage for routing the data to the output devices of the output stage. In one aspect, each crossbar device has (1) a bid arbitrator that determines whether to accept or reject each received bid, wherein, in response to a collision between multiple bids, the bid arbitrator accepts two or more of the colliding bids in a single time slot; and (2) memory for storing one or more accepted cells for the same output device, wherein the crossbar device can transmit grant signals for two or more accepted bids for the same output device in a single time slot. In another aspect, the bid arbitrator is configured to re-consider whether to accept a stored bid that was not accepted in a previous time slot.
Three-Stage Switch Fabric With Input Device Features
View pageUS Patent:
7161906, Jan 9, 2007
Filed:
Dec 14, 2001
Appl. No.:
10/017173
Inventors:
Martin S. Dell - Bethlehem PA, US
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Wei Li - Basking Ridge NJ, US
Yu-Kuen Ouyang - San Jose CA, US
Matthew Tota - Clinton NJ, US
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Wei Li - Basking Ridge NJ, US
Yu-Kuen Ouyang - San Jose CA, US
Matthew Tota - Clinton NJ, US
Assignee:
Agere Systems Inc. - Allentown PA
International Classification:
H04J 1/16
H04L 12/66
H04L 12/28
H04Q 11/00
H04L 12/66
H04L 12/28
H04Q 11/00
US Classification:
370231, 370356, 370360, 370388, 370414
Abstract:
A switch fabric for routing data has a switching stage configured between an input stage and an output stage. The input stage forwards the received data to the switching stage, which routes the data to the output stage, which transmits the data towards destinations. In one aspect, at least one input port can be programmably configured to store data in two or more input routing queues that are associated with a single output port, and at least one output port can be programmably configured to receive data from two or more output routing queues that are associated with a single input port. In another aspect, the output stage transmits status information about the output stage to the input stage, which uses the status information to generate bids to request connections through the switching stage. In yet another aspect, the switching stage transmits a grant/rejection signal to the input stage identifying (1) whether each bid is accepted or rejected and, if rejected, (2) a reason for rejecting the bid, and the input stage determines how to react to a rejected bid based on the reason the bid was rejected.
Calculation Of Link-Detour Paths In Mesh Networks
View pageUS Patent:
7500013, Mar 3, 2009
Filed:
Apr 2, 2004
Appl. No.:
10/817760
Inventors:
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Muhammad A. Qureshi - Irvine CA, US
Muhammad A. Qureshi - Irvine CA, US
Assignee:
Alcatel-Lucent USA Inc. - Murray Hill NJ
International Classification:
G06F 15/173
G06F 12/00
G06F 12/00
US Classification:
709238, 709249
Abstract:
A protected communication network utilizes a link-based recovery strategy that includes methods for calculating and distributing link-protection parameters and calculating primary and link-detour paths based on these parameters. These link-protection parameters support the computation of more-optimal link-detour paths and a corresponding increase in sharing of network resources between disjoint failures. A joint-optimization mechanism can be employed that considers both the cost of link-detour paths as well as the cost of links in candidate primary paths in the selection of a primary path for a demand. Information for the joint optimization is preferably distributed using link-state advertisements.
Sharing Restoration Path Bandwidth In Mesh Networks
View pageUS Patent:
7606237, Oct 20, 2009
Filed:
Aug 12, 2003
Appl. No.:
10/639728
Inventors:
Zbigniew M. Dziong - Atlantic Highlands NJ, US
Ramesh Nagarajan - Somerset NJ, US
Muhammad A. Qureshi - Green Brook NJ, US
Ramesh Nagarajan - Somerset NJ, US
Muhammad A. Qureshi - Green Brook NJ, US
Assignee:
Alcatel-Lucent USA Inc. - Murray Hill NJ
International Classification:
H04L 12/28
US Classification:
37039541, 370242, 370248, 370250, 370244
Abstract:
A shared mesh data network (SMDN) for path-based recovery at the packet level. In one implementation, a first link in the network is part of two or more different protection paths, where each protection path corresponds to a different primary path. A network manager determines how much protection bandwidth to reserve on the first link for the two or more protection paths in such a way that the protection bandwidth reserved on the first link is shared between the protection paths of the two or more primary paths. As such, the amount of protection bandwidth reserved on the first link can be less than the sum of the bandwidths of the two or more primary paths. The SMDN provides efficient sharing of protection capacity. Implementations of the SMDN are appropriate to multiprotocol label-switched (MPLS) optical networks.
Model-Based Admission Control Adjustment In Data Networks
View pageUS Patent:
6625155, Sep 23, 2003
Filed:
Sep 28, 1999
Appl. No.:
09/407779
Inventors:
Zbigniew Marek Dziong - Atlantic Highlands NJ
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04L 1228
US Classification:
3703952, 370230
Abstract:
Tuning for connection admission control (CAC) algorithms in broadband ATM networks is accomplished using an overbooking technique based on aggregate effective bandwidth, AEBW, as an approximation to required bandwidth for given levels and classes of network traffic. An overbooking gain factor, is developed and used for a succeeding time interval using a model-based approach illustratively using estimates of mean and variance for selected measured parameters of the aggregate cell process for the current state of connections. Well-known Kalman filtering techniques are advantageously applied to optimally estimate the mean and variance values. It also proves useful to include longer term statistics in the mean and variance calculation and to modulate the aggressiveness of overbooking based on actual system performance measures (e. g. cell losses).
Isbn (Books And Publications)
ATM Network Resource Management
View page
Author
Zbigniew Dziong
ISBN #
0070185468