VLADIMIR ROSENZWEIG
Broker in Belmont, MA
License number
Massachusetts 9042743
Issued Date
Dec 26, 2001
Expiration Date
Jun 9, 2006
Type
Salesperson
Address
Address
Belmont, MA 02478
Professional information
Systems And Methods For Constructing A Virtual Model Of A Multi-Hop, Multi-Access Network
US Patent:
7983239, Jul 19, 2011
Filed:
Jan 7, 2004
Appl. No.:
10/752988
Inventors:
Joseph J. Weinstein - Somerville MA, US
Vladimir Rosenzweig - Belmont MA, US
Isidro Marcos Castineyra - Somerville MA, US
Jonathan Shapiro - Framingham MA, US
Vladimir Rosenzweig - Belmont MA, US
Isidro Marcos Castineyra - Somerville MA, US
Jonathan Shapiro - Framingham MA, US
Assignee:
Raytheon BBN Technologies Corp. - Cambridge MA
International Classification:
G01R 31/08, H04L 12/28
US Classification:
370351, 370238, 370397
Abstract:
A system constructs an OSPF-compatible virtual model of a multi-hop, multi-access packet radio network that includes a plurality of routers () and which includes its own private, internal routing system (), in order to facilitate the incorporation of that packet radio network into an overall OSPF routing environment. The system determines a network graph identifying actual connectivity among the plurality of routers (). The system constructs a virtual model () of the, wherein connectivity of the virtual model may be different than the actual connectivity of the network graph. The system represents the multi-hop, multi-access radio network in the virtual model as a set of multi-access links (), point-to-point links, AS-external routes, and area summary routes. The system employs the virtual model for routing purposes and advertises the virtual model to other OSPF routers for the same purpose.
Systems And Methods For Synchronizing Multple Copies Of A Database Using Datablase Digest
US Patent:
2004024, Dec 9, 2004
Filed:
Mar 11, 2004
Appl. No.:
10/797030
Inventors:
Joseph Weinstein - Somerville MA, US
Vladimir Rosenzweig - Belmont MA, US
Joseph Keller - Ledyard CT, US
Jonathan Shapiro - Framingham MA, US
David Pearson - Bennington VT, US
Vladimir Rosenzweig - Belmont MA, US
Joseph Keller - Ledyard CT, US
Jonathan Shapiro - Framingham MA, US
David Pearson - Bennington VT, US
International Classification:
H04L012/26, G06F011/00, H04J001/16, H04J003/14
US Classification:
370/238000
Abstract:
A system uses database digests to synchronize routing data in a network (). The system includes a first node (-) and a second node (-). The first node (-) stores first routing data and the second node (-) stores second routing data. The second node (-) further performs a function on a portion of the second routing data, where the function produces a database digest that has substantially less data than the portion of the second routing data. The second node (-) also sends the database digest to the first node (-) to synchronize the second routing data with the first routing data.
Systems And Methods For Forming An Adjacency Graph For Exchanging Network Routing Data
US Patent:
7881229, Feb 1, 2011
Filed:
Aug 6, 2004
Appl. No.:
10/913151
Inventors:
Joseph J. Weinstein - Somerville MA, US
Vladimir Rosenzweig - Belmont MA, US
Joseph Keller - Ledyard CT, US
Vladimir Rosenzweig - Belmont MA, US
Joseph Keller - Ledyard CT, US
Assignee:
Raytheon BBN Technologies Corp. - Cambridge MA
International Classification:
H04L 12/28, G06F 15/173
US Classification:
370255, 709223
Abstract:
A system for exchanging routing information over a communications network constructs a connectivity graph that indicates connectivity between a first node and a first set of nodes in the network. The system constructs an adjacency graph that indicates a second set of nodes with which the first node will exchange routing data, where the adjacency graph is distinct from the connectivity graph. The system exchanges routing data between the first node and each node of the second set of nodes based on the adjacency graph.
Methods For Wireless Mesh Multicasting
US Patent:
2005023, Oct 20, 2005
Filed:
Mar 23, 2005
Appl. No.:
11/088045
Inventors:
Vladimir Rosenzweig - Belmont MA, US
Cesar Santivanez - Boston MA, US
Joseph Weinstein - Somerville MA, US
Daniel Coffin - Sudbury MA, US
Cesar Santivanez - Boston MA, US
Joseph Weinstein - Somerville MA, US
Daniel Coffin - Sudbury MA, US
Assignee:
BBNT Solutions LLC - Cambridge MA
International Classification:
H04L012/56
US Classification:
370400000
Abstract:
The invention relates generally to systems, methods and/or devices for joining, generating, maintaining, and/or multicasting information via a multicast mesh.