Patent
Automatic management of timestamp-based synchronisation protocols
Michel Le Pallec,Dinh Thai Bui +1 more
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TLDR
In this paper, a method for automatic management of a timestamp-based synchronization protocol within a packet-based network to synchronize a slave within a synchronization topology including a plurality of masters, the slave clock being locked to a master clock at an initialization time, is presented.Abstract:
A method for automatic management of a timestamp-based synchronization protocol within a packet-based network to synchronize a slave within a synchronization topology including a plurality of masters, the slave clock being locked to a master clock at an initialization time, said method comprising an assessment step of end-to-end packet delay variation on the basis of the slave clock accuracy, over a plurality of (slave, path, master) combinations, each path linking the slave to a master.read more
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Patent
Clock synchronization using multiple network paths
Tal Mizrahi,Alexander Shpiner +1 more
TL;DR: In this article, a clock synchronization module is configured to determine a plurality of path time data sets corresponding to the plurality of different communication paths based on signals received from the master clock via the plurality.
Patent
Timing over packet demarcation entity
TL;DR: In this article, the authors propose a packet inspector that uses the copied timing information and timestamps to synchronize a local clock to a master clock, and forwards the received packets for transmission from a port of the at least one port towards a packet destination that is not a packet source from where the packets originate.
Patent
Time adjustment using time-to-live values
Keith E. Holleman,Murthy Garikiparthi,Meenakshi S. Subramanian,DeviPrasad Natesan,Philip Kruzinski +4 more
TL;DR: In this paper, the authors propose a timing module that determines a time adjustment based at least in part on the determination that the first and second TTL values are different, and applies the time adjustment to update the time of the network device.
Patent
Transparent Caching of Configuration Data
TL;DR: In this article, the authors present systems, software, and computer implemented methods for providing transparent caching of configuration data in distributed landscapes, including operations for receiving a read request of original configuration data stored at a second system A first timestamp associated with local configuration data at a first system is identified, and the second timestamp is determined to be later in time than the first timestamp.
Patent
Clock synchronization system, clock synchronization method, and storage medium whereupon clock synchronization program is stored
TL;DR: In this article, the authors proposed a time regeneration unit (TUM) for synchronization of the time of the slave node. But the time comparison unit (TCU) was not used to calculate the correction value.
References
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Patent
Method for routing information over a network employing centralized control
TL;DR: In this paper, a method and apparatus for centralized control of a network is described, which includes creating a database and storing the database on a master node of the network, with each node coupled to at least one other node, with the master node being one of the nodes.
Patent
Method and system to calculate network latency, and to display the same field of the invention
TL;DR: In this paper, the authors propose a method to calculate network latency by correlating a first packet identifier recorded at a first network location with a second packet identifier at a second network location, in which the first and second packet identifiers indicate a common first packet and have respective first-and second timestamps associated therewith.
Proceedings ArticleDOI
Packet delay variation management for a better IEEE1588V2 performance
TL;DR: This article proposes a new distributed ranging scheme which allows for optimizing the overall PTPV2 synchronization performance, and considers as a critical mobile backhaul use case IEEE 1588V2 over Digital Subscriber Line (DSL).
Patent
Method for clock recovery using updated timestamps
TL;DR: In this article, a method and mechanisms for adaptive clock recovery of a service clock (fs) of a constant bit rate, CBR, service transmitted as a stream of data packets (P(i)) over a packet network (2) from a sending end node (S) to a receiving end node(R), via at least one intermediate node (T).
Patent
Method and circuit arrangement for the monitoring and management of data traffic in a communication system with several communication nodes
TL;DR: In this article, a method for the monitoring and management of data traffic in a communication system with several communication nodes which communicate via interfaces monitored by a bus monitor, comprising the following steps:a) provision of a predefined communication time schedule for all communication nodes,b) initialization of the bus monitor and synchronization of the communication timeslots with the pre-defined communication time schedules executed by the communication nodes in a distributed arrangement, the synchronization taking place on the basis of activities observed at the interfaces.