Patent application number | Description | Published |
20110090811 | Available Bandwidth Estimation in a Packet-Switched Communication Network - A system and method for determining end-to-end available bandwidth of a path in a packet-switched communication network. A multi-rate packet chirp injector injects probe traffic packets at different probing rates, u, into the network utilizing a probe chirp. A receiver samples time separation of the probe traffic packets to generate time-separation samples, which are used to calculate relative inter-packet separation strain, ε, samples at different probing rates. An Expectation-Maximization, EM, analyzer utilizes an EM algorithm to identify useful strain ε samples and to estimate parameters of a line l | 04-21-2011 |
20110176429 | METHOD, ARRANGEMENT AND SYSTEM FOR MONITORING A DATA PATH IN A COMMUNICATION NETWORK - A probing method, arrangement, and system for estimating a condition, such as available bandwidth, of a data path in a communication network including multiple nodes are described. A probe-packet sender node transmits probe packets with a sent inter-packet separation and a time-to-live towards an intermediate node. Control message packets are generated by the intermediate node when the time-to-live expires. The probe-packet sender node receives the control message packets and calculates a received inter-packet separation. An estimate of the data path condition can be generated based on the sent inter-packet separation and the received inter-packet separation. | 07-21-2011 |
20110238756 | Method For Selection of Suitable Peers in a Peer-to-Peer (P2P) Network - The present invention relates to a method for selecting suitable peers CL | 09-29-2011 |
20110270924 | Peer to Peer Network - An access network ( | 11-03-2011 |
20110276957 | MOBILE SPECIALIZED SOFTWARE CODE UPDATED - A first host ( | 11-10-2011 |
20120128000 | Systems and Methods for Measuring Available Capacity and Tight Link Capacity of IP Paths from a Single Endpoint - According to one exemplary embodiment, a method for determining the forward and reverse available capacity or tight link capacity of an IP path from a single endpoint includes the steps of: transmitting, from a source IP endpoint node toward a destination IP endpoint node, a forward packet train including a first plurality of IP test packets over the forward IP path; and receiving, at the source IP endpoint node, a corresponding reverse packet train from the destination IP endpoint node, the reverse packet train including a second plurality of IP test packets over the reverse IP path each of which correspond to a respective one of the first plurality of IP test packets. For those IP path capacity measurements embodiments which are TWAMP-based, no changes are needed to the TWAMP control protocol, e.g., since exemplary embodiments make use of padding octets to transfer additional information which can be used for available IP path capacity and tight IP link capacity calculations. | 05-24-2012 |
20120147768 | Method and Apparatus For Reducing Power Consumption in a Telecommunication Network - A method that reduces the power consumption on network nodes by taking into account the services that need to be supported by the network and the power saving capabilities of the nodes. | 06-14-2012 |
20120290677 | Dynamic Cache Selection Method and System - Node, computer software and method for selecting a resource that is available at multiple caches connected in a communication network. The method includes receiving from a user a request for the resource; identifying one or more caches of the multiple caches that store the resource; determining a total cost associated with a path between the user and each cache of the one or more caches storing the resource, the total cost including a static cost C | 11-15-2012 |
20120304175 | NETWORK PERFORMANCE MONITOR FOR VIRTUAL MACHINES - Embodiments of the present invention relate to a method and system to monitor network performance in a computer including at least one physical server having a hardware machine attached via a hypervisor to a set of virtual machines. According to an embodiment of the present invention, the system measures network performance parameters for selected packet flows in transition between the hardware machine and the virtual machines, analyzes the measured performance parameters, and identifies a source of network degradation. | 11-29-2012 |
20130058235 | SUB-PATH E2E PROBING - The present invention relates to a method and arrangement for estimating available bandwidth of sub-path of a data path. The solution is based on the sending of probe packet trains comprising inner and outer packets from a start node to an end node using different TTL values for the outer and inner packets of these probe trains. By comparing measurements using different TTL values of the inner packets, it is also possible to determine which link are the local tight link and what available bandwidth it has. | 03-07-2013 |
20130080633 | APPARATUS AND METHOD FOR MONITORING OF CONNECTIVITY SERVICES - An apparatus ( | 03-28-2013 |
20130100847 | Method And An Apparatus For Evaluating Network Performance - The present invention relates to methods and node entities for enabling active measurement for evaluating network performance in a network comprising a logical tree structure | 04-25-2013 |
20130340012 | Media Switching Unit and Method - A user terminal, media application and method for selectively downloading media content through a communication network and selectively displaying the media content at a user terminal connected to the communication network. The method includes receiving main media content at the user terminal; determining at the user terminal level whether there are streaming resources available to maintain a predetermined quality of streaming the main media content; receiving secondary media content when the streaming resources are above a predetermined level; and displaying the main media content when the streaming resources are above the predetermined level and automatically displaying the secondary media content when the streaming resources are below the predetermined level. A switching functionality of the user terminal is configured to select which media content to be displayed as a function of the streaming resources. | 12-19-2013 |
20140016493 | Method for Queuing Data Packets and Node Therefore - A method for queuing data packets is described. Upon receipt of a data packet, e.g., at an egress buffer of a node, a position within an output queue at which to place the data packet is determined. The queue position for the data packet can be determined based on various criteria, e.g., the type of the data packet and a time associated with its subsequent transmission, and timing aspects associated with the data packets which are already stored in the queue. | 01-16-2014 |
20140071832 | NETWORK FAULT LOCALIZATION - Mechanisms for monitoring communication links in a network are disclosed. A device receives a plurality of path performance indicators over a period of time. It is determined that at least some of the path performance indicators identify a path violation in a corresponding path of a plurality of paths in the network. For each path performance indicator that identifies a path violation, a communication link value associated with each communication link in the corresponding path is updated based on a path violation value. The device identifies at least one particular communication link as a problematic communication link based on a comparison between a problematic link criterion and the communication link value associated with the at least one particular communication link. | 03-13-2014 |
20140112148 | METHOD AND AN APPARATUS FOR DETERMINING THE PRESENCE OF A RATE LIMITING MECHANISM IN A NETWORK - A method and device for determining the presence of a rate limiting mechanism arranged between a sending and a receiving data communication node in a data transfer path of a communication network is presented. The method includes determining time difference values for probe packets in a train of probe packets sent from the sending node and received in the receiving node after having traversed the data transfer path during real-time operation of the data transfer path. The method further includes determining the presence of a rate limiting mechanism in the data transfer path upon detecting that an increase in the time difference value between received probe packets in the train of probe packets exceeds a threshold criterion. Other methods and devices for determining the absence of a rate limiting mechanism and corresponding computer program products are further disclosed. | 04-24-2014 |