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Accedian Networks Inc patents


Recent patent applications related to Accedian Networks Inc. Accedian Networks Inc is listed as an Agent/Assignee. Note: Accedian Networks Inc may have other listings under different names/spellings. We're not affiliated with Accedian Networks Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Accedian Networks Inc-related inventors


Tcp performance predictor

Technology is disclosed herein for monitoring a network path. In an implementation, a device on a network path obtains a burst capacity of the network path, determines a round trip time associated with a burst of traffic sent over the network path, and determines a predicted throughput of the network path based at least in part on the burst capacity of the network path and the round trip time of the burst of traffic.. ... Accedian Networks Inc

Multi-hop reflector sessions

A method for measuring and reporting performance parameters in a network having at least one originator for generating test protocol data units, and multiple reflectors for relaying the test protocol data units along successive segments of a test path in the network. The method generates the test protocol data units at the originator and transmits the test protocol data unit along a test path that includes multiple reflectors. ... Accedian Networks Inc

Providing efficient routing of an operations, administration and maintenance (oam) frame received at a port of an ethernet switch

A system for efficient routing of an oam) frame in an ethernet switch receives an oam frame at a first port; building a first classification key dependent on an oam frame header; classifies in a context of the first port to create a first classification; resolves action dependent on the first classification; modifies the first classification key to create a second classification key; classifies the frame in a context of the second port to create a second classification; sends the second classification key to an oam engine coupled to the ethernet switch for modification into a third classification key; receives the third classification key from the oam engine; modifies the third classification key into a final classification key; modifies the header of the oam frame with the final classification key; and sends the modified oam frame to a switching fabric of the ethernet switch.. . ... Accedian Networks Inc

Systems and methods of discovering and controlling devices without explicit addressing

A method of discovering a device in a communication network having multiple interconnected nodes includes continuously monitoring, by a device to be discovered, any ip packets sent by a discoverer. The method further includes transmitting, by the discoverer, an ip packet destined for a downstream device and receiving, by the device to be discovered, the ip packet. ... Accedian Networks Inc

Virtualized clocks

A method of virtualizing a clock is executed by a network controller comprising a processor and computer-readable instructions for creating one or more virtual network elements comprising one or more virtual clocks. The method comprises retrieving, at a first virtual network element of the one or more virtual network elements, a first time of day value and a second time of day value. ... Accedian Networks Inc

Simplified synchronized ethernet implementation

A method of simplifying the implementation of synchronous ethernet on an ethernet device having a first port and a second port device using a predetermined protocol and signaling, comprises delivering a master clock from a synchronous ethernet system to the first port of the ethernet device; transmitting the delivered master clock to the second port of the ethernet device independently of the protocol and signaling of the ethernet device; and transmitting the master clock from the second port of the ethernet device to a downstream device that supports synchronous ethernet. In one implementation, the ethernet device has a local clock, and the method synchronizes the local clock to the master clock. ... Accedian Networks Inc

Precise statistics computation for communication networks

A method for accurately measuring one or more network performance statistics during one or more sampling periods comprises processing a received data packet to identify flow information and time of arrival; transmitting the data packet, along with metadata comprising the flow information and the time of arrival, to a sample processing module; replaying the reception of the data packet based on the relative speed of the transmission link and the databus and the time of arrival; incrementing a number of bytes received for the data packet for a first sampling period; starting a second sampling period at a predetermined time and incrementing a number of bytes received for the data packet for the second sampling period, if the replaying is not completed. The number of bytes received for the data packet for the first and second sampling periods are processed into first and second sampling period statistics, respectively.. ... Accedian Networks Inc

Efficient capture and streaming of data packets

What is disclosed is a method for efficient capture and streaming of data packets in a network device comprises capturing data packets matching predetermined filters, packaging said data packets into samples, and aggregating one or more samples in a high speed bus payload. The method also comprises transferring said high speed bus payload to a cpu, extracting said samples from the high speed bus payload and storing said samples in a shared memory of the cpu, and accessing said samples from the shared memory for streaming to one or more client.. ... Accedian Networks Inc

System and method for out-of-line real-time in-service performance measurement

A system for out-of-line testing of performance of a network, comprising a multiplexer at an input to the network; a demultiplexer at an output from the network; the multiplexer further comprising a traffic generator to insert synthetic traffic, and a first switch to accept an incoming customer traffic stream and join the incoming customer traffic stream with a synthetic traffic stream to form a total traffic stream, the total traffic stream fed to the input to the network; and the demultiplexer comprising a second switch to receive the total traffic stream from the output of the network, and separate the total traffic stream into the synthetic traffic stream and the customer traffic stream, and a traffic analyzer to analyze the separated synthetic traffic stream.. . ... Accedian Networks Inc

Method, a computer program product, and a carrier for indicating one-way latency in a data network

Disclosed herein is a method, a computer program product, and a carrier for indicating one-way latency in a data network (n) between a first node (a) and a second node (b), wherein the data network (n) lacks continuous clock synchronization, comprising: a pre-synchronisation step, a measuring step, a post-synchronisation step, an interpolation step, and generating a latency profile. The present invention also relates to a computer program product incorporating the method, a carrier comprising the computer program product, and a method for indicating server functionality based on the first aspect.. ... Accedian Networks Inc

Method for devices in a network to participate in an end-to-end measurement of latency

A method of determining the latency of path segments in a communication network that uses multi-bit data packets comprises generating a test packet for use in determining the latency of path segments in the network; transmitting the test packet from a first device coupled to the network; storing in the test packet the time when a preselected bit in the test packet is transmitted from the first device; when the test packet is received by a second device coupled to the network, storing in the second device at least one of (a) the time when a preselected bit in the test packet is received by the second device and (b) the difference between (i) the time when the preselected bit in the test packet is transmitted from the first device and (ii) the time when the test packet is received by the second device.. . ... Accedian Networks Inc

Programmable small form-factor pluggable module

A small form factor pluggable (“sfp”) transceiver for use in a communications network includes a transmitter adapted to be coupled to the network for supplying signals to the network, a receiver adapted to be coupled to the network for receiving signals from the network, and a programmable signal processing module coupled to the transmitter and the receiver and adapted to be programmed from a remote station coupled to the network. The module can be programmed to perform at least one service or management function on the network.. ... Accedian Networks Inc

System for establishing and maintaining a clock reference indicating one-way latency in a data network

A method for indicating one-way latency in a data network, with continuous clock synchronization, between first and second node having clocks that are not synchronized with each other includes a continuous synchronisation session and a measurement session. The method repetitively sends predetermined synchronization messages from the first node to the second node and from the second node to the first node, calculates a round trip time for each message at the first node, updates a synchronization point if the calculated round trip time is smaller than a previously calculated round trip time, stores the updated synchronization points of a synchronization window, and calculates a virtual clock from the updated synchronization points of the synchronization window. ... Accedian Networks Inc

Single queue link aggregation

A method for transmitting a packet on a logical port comprising two or more physical ports comprises receiving a packet of a class of service; storing the packet in a memory; maintaining a lookup table relating a plurality of identifiers to at least one physical port; storing a pointer to the stored packet in the memory in a single pointer list for the class of service along with a selected one of the identifiers; and copying the stored packet to one or more physical ports corresponding to the selected identifier for transmission on at least one of the physical ports. In one implementation, a plurality of the physical ports are grouped into a logical port, and the received packet is processed to determine its logical port and its class of service.. ... Accedian Networks Inc

09/21/17 / #20170272324

Transparent auto-negotiation of ethernet

A system for negotiating ethernet link settings between interconnected nodes in a network having an ethernet protocol stack that includes a pcs sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the pcs sub-layer in the intermediate device. ... Accedian Networks Inc

08/24/17 / #20170244590

Service oam virtualization

A soam virtualization system for a network having at least first and second maintenance entities coupled to each other comprises a network controller coupled to at least one of the first and second maintenance entities through a tunnel for virtualizing a soam network function on the at least one of the first and second maintenance entities to which the network controller is coupled. The network controller may be coupled to the first and second maintenance entities through first and second tunnels, respectively. ... Accedian Networks Inc

08/10/17 / #20170227725

Integrated passive optical tap and optical signal termination

An integrated pluggable optical tap module configured to be coupled to a host interface of a network equipment for tapping a signal of an optical transport link comprises a first, a second optical interface, and an active optical receiver. The optical pluggable module also includes a passive optical tap for splitting a signal received from the first optical interface and transmitting the signal on the second optical interface and a copy of the signal to the active optical receiver. ... Accedian Networks Inc

08/03/17 / #20170222942

Preemptive packet transmission

Disclosed herein is technology to reduce latency of frames through a network device supporting various priorities. In an implementation, a method comprises configuring one or more priorities with a preemptive right over other one or more of said plurality of priorities; receiving frames in a sequence, each of the frames having a frame priority comprising of one of said plurality of priorities; queuing the received frames in a predetermined order based on a frame arrival time and the frame priority; transmitting a current frame based on a current frame priority and current frame arrival time; stopping transmission of the current frame when a later frame in the sequence is received that has a later frame priority with preemptive right over the current frame priority; transmitting an invalid frame check sequence; transmitting the later frame; and restarting the transmission of the current frame after transmitting the later frame.. ... Accedian Networks Inc

08/03/17 / #20170222911

System and method for loopback and network loop detection and analysis

A method of determining the presence of a loopback in one or more networks comprises storing information related to a test instance; sending a loopback detection beacon (lpdb) containing information related to the test instance from a port on an originating device; monitoring the port for a predetermined time period to detect lpdbs arriving at the port during the predetermined time period; and determining whether a detected lpdb contains information corresponding to the stored information, to detect the presence of a loopback. The method may determine whether a detected loopback is a port loopback, a tunnel loopback or a service loopback. ... Accedian Networks Inc

07/06/17 / #20170195463

Providing efficient routing of an operations, administration and maintenance (oam) frame received at a port of an ethernet switch

A system for efficient routing of an oam) frame in an ethernet switch receives an oam frame at a first port; building a first classification key dependent on an oam frame header; classifies in a context of the first port to create a first classification; resolves action dependent on the first classification; modifies the first classification key to create a second classification key; classifies the frame in a context of the second port to create a second classification; sends the second classification key to an oam engine coupled to the ethernet switch for modification into a third classification key; receives the third classification key from the oam engine; modifies the third classification key into a final classification key; modifies the header of the oam frame with the final classification key; and sends the modified oam frame to a switching fabric of the ethernet switch.. . ... Accedian Networks Inc

07/06/17 / #20170195287

System and methods of installing and operating devices without explicit network addresses

A method of discovering addressing information of one or more upstream devices to respond to specific messages by a second device on behalf of the one or more upstream devices in a network includes acquiring the addressing information in an upstream direction from one or more downstream devices to the one or more upstream devices. The method further includes acquiring the addressing information in a downstream direction from the one or more upstream devices to the one or more downstream devices. ... Accedian Networks Inc

06/01/17 / #20170155459

Simplified synchronized ethernet implementation

A method of simplifying the implementation of synchronous ethernet on an ethernet device having a first port and a second port device using a predetermined protocol and signaling, comprises delivering a master clock from a synchronous ethernet system to the first port of the ethernet device; transmitting the delivered master clock to the second port of the ethernet device independently of the protocol and signaling of the ethernet device; and transmitting the master clock from the second port of the ethernet device to a downstream device that supports synchronous ethernet. In one implementation, the ethernet device has a local clock, and the method synchronizes the local clock to the master clock. ... Accedian Networks Inc

05/18/17 / #20170142864

Cooling apparatus for pluggable modules

A cooling apparatus for a pluggable module comprises a pluggable module cage to house the pluggable module and a heat pipe coupled with a hot interface at one end and a cold interface at another end. The cooling apparatus further comprises an attachment mechanism for attaching the hot interface and the heat pipe to the pluggable module. ... Accedian Networks Inc

05/04/17 / #20170126540

Layer-3 performance monitoring sectionalization

A method is disclosed for the collection of performance metrics by establishing service operations administration and maintenance (oam) sessions between an actuator and a plurality of reflectors in a communication network. Test packets from an actuator simultaneously reach a plurality of reflectors along a test path. ... Accedian Networks Inc

05/04/17 / #20170126526

Method, a computer program product, and a carrier for indicating one-way latency in a data network

Disclosed herein is a method, a computer program product, and a carrier for indicating one-way latency in a data network (n) between a first node (a) and a second node (b), wherein the data network (n) lacks continuous clock synchronization, comprising: a pre-synchronisation step, a measuring step, a post-synchronisation step, an interpolation step, and generating a latency profile. The present invention also relates to a computer program product incorporating the method, a carrier comprising the computer program product, and a method for indicating server functionality based on the first aspect.. ... Accedian Networks Inc

04/06/17 / #20170097858

Multicasting of event notifications using extended socket for inter-process communication

A system is provided for multicasting an event notification from an event producer to multiple event listeners, where the event producer and event listeners exist within a computer operating system having a user space, a kernel space, a device space, and an event protocol handler located in the kernel space. The system generates an event indication from an event producer located in the user space, kernel space, or device space, and receiving the event indication in the event protocol handler and generating an event notification. ... Accedian Networks Inc

02/16/17 / #20170048362

Modified ethernet preamble for inter line card communications in a modular communication chassis

A method of providing information regarding an ethernet frame, within the ethernet preamble of the ethernet frame, comprises inserting into the ethernet preamble an inter-line-card header that includes a start control character, a version number, a parity bit, a source port, a destination port, and a forwarding domain entry; and preserving said inter-line-card header, inside of said ethernet preamble, in a media access control (mac) sub-layer in said ethernet frame. The method may include a step of selecting the decoding format for the inter-line-card header corresponding to the version number and/or forwarding other ethernet frames according to additional forwarding information provided by the forwarding domain entry. ... Accedian Networks Inc

02/09/17 / #20170042063

Hybrid thermal management of electronic device

An enclosure with hybrid thermal management for a heat-generating electronic device comprises a passive heat sink for conducting heat away from the electronic device, a cold skin adapted to slide over the top of the passive heat sink and having a front wall forming a plurality of air intake ports, and a plurality of blowers mounted inside the cold skin for drawing air into the cold skin though the air intake ports and then directing the air through the passive heat sink. In one implementation, the passive heat exchanger includes multiple thermally conductive fins adjacent to the electronic device and extending rearwardly from the intake ports, the fins being spaced apart from each other for conducting heat away from the electronic device. ... Accedian Networks Inc

02/09/17 / #20170041194

Systems and methods of discovering and controlling devices without explicit addressing

A method of discovering a device in a communication network having multiple interconnected nodes includes continuously monitoring, by a device to be discovered, any ip packets sent by a discoverer. The method further includes transmitting, by the discoverer, an ip packet destined for a downstream device and receiving, by the device to be discovered, the ip packet. ... Accedian Networks Inc

01/26/17 / #20170026336

Methods of using beacon messages to discover devices across subnets

A method of discovering a device to be discovered in a communication network having multiple interconnected nodes includes transmitting, by a discoverer, at least one beacon signal including an ip address to the network. The device to be discovered receives the at least one beacon signal. ... Accedian Networks Inc

01/26/17 / #20170026241

Transparent auto-negotiation of ethernet

A system for negotiating ethernet link settings between interconnected nodes in a network having an ethernet protocol stack that includes a pcs sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the pcs sub-layer in the intermediate device. ... Accedian Networks Inc








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