-
公开(公告)号：US11146485B1
公开(公告)日：2021-10-12
申请号：US17181550
申请日：2021-02-22
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Yaakov Stein
IPC: H04L12/721 , H04L12/725 , H04L12/741 , H04L12/717
Abstract: Provided herein is a method for a router to process time-sensitive packets, the method comprising: receiving a time-sensitive packet comprising a stack containing at least one local deadline, the stack being comprised within a header of the time-sensitive packet; retrieving a local deadline from the at least one local deadline comprised within the header; and scheduling transmission of the time-sensitive packet based on the local deadline. Also provided is a method for a router to process time-sensitive packets, the method comprising: receiving a time-sensitive packet comprising a stack containing at least one entry, each entry of the at least one entry respectively comprising, as sub-entries, a forwarding instruction and a local deadline; retrieving an entry from the stack; forwarding the time-sensitive packet according to the forwarding instruction comprised in the retrieved entry; and scheduling transmission of the time-sensitive packet based on the local deadline comprised in the retrieved entry.
-
公开(公告)号：US09369362B2
公开(公告)日：2016-06-14
申请号：US13945934
申请日：2013-07-19
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Yaakov Stein , Ron Insler , Alon Geva
IPC: H04L12/26
CPC classification number: H04L43/0811 , H04L43/0835 , H04L43/0841 , H04L43/0858 , H04L43/0864 , H04L43/10
Abstract: A method of characterizing a communications channel between two communications nodes, the method comprising: determining at least one feature of a communications path between a first communications node and a second communications node; determining at least one feature of a communications path between the first communications node and a third communications node; transmitting at least one packet from the first node to propagate through the second and third nodes and return to the first node; and determining at least one feature of the communications channel between the second and third nodes responsive to receiving the packet at the first node, the at least one determined feature of the first node and the second node, and/or information comprised in the packet.
Abstract translation: 一种表征两个通信节点之间的通信信道的方法，所述方法包括：确定第一通信节点和第二通信节点之间的通信路径的至少一个特征; 确定所述第一通信节点和第三通信节点之间的通信路径的至少一个特征; 从所述第一节点发送至少一个分组，以传播所述第二和第三节点并返回到所述第一节点; 以及响应于在所述第一节点处接收到所述分组，所述第一节点和所述第二节点的所述至少一个确定的特征和/或所述分组中包括的信息来确定所述第二节点和所述第三节点之间的所述通信信道的至少一个特征。
-
公开(公告)号：US09276689B2
公开(公告)日：2016-03-01
申请号：US13625876
申请日：2012-09-25
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Alon Geva , Yaakov Stein
CPC classification number: H04J3/0644 , H04J3/06
Abstract: Apparatus for providing timing information, the apparatus comprising: a primary reference time clock (PRTC) that provides a reference time of day (ToD) and a reference frequency; a packet master clock that receives the ToD and reference frequency and is configured to distribute timing to a slave clock in accordance with a timing over packet procedure responsive to the ToD and the reference frequency; and a housing that houses the PRTC and packet master clock which may be plugged into a conventional small form factor (SFP) compliant cage to connect the packet master clock to a packet switched network (PSN).
Abstract translation: 一种用于提供定时信息的装置，所述装置包括：提供一天的参考时间（ToD）和参考频率的主参考时钟（PRTC）; 分组主时钟，其接收ToD和参考频率，并且被配置为响应于ToD和参考频率根据分组过程的定时将定时分配到从时钟; 以及容纳PRTC和分组主时钟的外壳，其可以插入到常规小尺寸（SFP）兼容机箱中，以将分组主时钟连接到分组交换网络（PSN）。
-
公开(公告)号：US10754666B1
公开(公告)日：2020-08-25
申请号：US16578431
申请日：2019-09-23
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Yzhak Sorani , Yaakov Stein
Abstract: A device comprising: at least one partially reconfigurable FPGA; a Network-on-Chip (NoC) comprised in the FPGA; and at least one area on the at least one FPGA operable to house a hardware micro-service (HMS); wherein an HMS image may be loaded onto the area of the at least one FPGA via partial reconfiguration to form a new HMS, and the NoC is operable to forward information to and from the new HMS without the NoC being reloaded.
-
公开(公告)号：US20160344600A1
公开(公告)日：2016-11-24
申请号：US15180154
申请日：2016-06-13
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Yaakov Stein , Ron Insler , Alon Geva
IPC: H04L12/26
CPC classification number: H04L43/0811 , H04L43/0835 , H04L43/0841 , H04L43/0858 , H04L43/0864 , H04L43/10
Abstract: A method of determining packet loss ratio between two communications nodes, the method comprising: transmitting at least one loopback packet configured to be propagated from a first node through a second and third nodes back to the first node; upon traversal of the second node inserting into the loopback packet a first counter for a number of packets sent from the second node to the third node prior to receiving the loopback packet; upon traversal of the third node inserting into the loopback packet a second counter for a number of packets received by the third node from the second node prior to receiving the loopback packet; upon return of the loopback packet to the first node, determining a packet loss ratio between the second and third nodes responsive to the first counter number and the second counter number inserted into the loopback packet.
Abstract translation: 一种确定两个通信节点之间的分组丢失率的方法，所述方法包括：发送被配置为从第一节点通过第二和第三节点传播回到所述第一节点的至少一个环回分组; 在所述第二节点遍历所述环回分组之前，在接收到所述环回分组之前，从所述第二节点发送到所述第三节点的多个分组的第一计数器; 在接收到所述环回分组之前，遍历所述第三节点将从所述第三节点接收的多个分组的第二计数器插入到所述环回分组中; 在将所述环回分组返回到所述第一节点时，响应于所述第一计数器号和插入所述环回分组中的所述第二计数器号确定所述第二和第三节点之间的分组丢失率。
-
Patent Agency Ranking
公开(公告)号：US20140085141A1
公开(公告)日：2014-03-27
申请号：US13625876
申请日：2012-09-25
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Alon Geva , Yaakov Stein
CPC classification number: H04J3/0644 , H04J3/06
Abstract: Apparatus for providing timing information, the apparatus comprising: a primary reference time clock (PRTC) that provides a reference time of day (ToD) and a reference frequency; a packet master clock that receives the ToD and reference frequency and is configured to distribute timing to a slave clock in accordance with a timing over packet procedure responsive to the ToD and the reference frequency; and a housing that houses the PRTC and packet master clock which may be plugged into a conventional small form factor (SFP) compliant cage to connect the packet master clock to a packet switched network (PSN).
Abstract translation: 一种用于提供定时信息的装置，所述装置包括：提供一天的参考时间（ToD）和参考频率的主参考时钟（PRTC）; 分组主时钟，其接收ToD和参考频率，并且被配置为响应于ToD和参考频率根据分组过程的定时将定时分配到从时钟; 以及容纳PRTC和分组主时钟的外壳，其可以插入到常规小尺寸（SFP）兼容机箱中，以将分组主时钟连接到分组交换网络（PSN）。
-
公开(公告)号：US09787461B1
公开(公告)日：2017-10-10
申请号：US15361517
申请日：2016-11-28
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Gabriel Zigelboim , Alon Geva , Yaakov Stein
CPC classification number: H04L7/0012 , H04J3/0667 , H04L7/0004 , H04L43/062 , H04L43/0858 , H04L43/0864 , H04L43/106
Abstract: A method for measuring one-way delays in a communications network, the method comprising: maintaining a virtual clock state comprising information for converting times measured with respect to remote clocks into times as would be measured with respect to a local reference clock; registering, for each packet of the plurality of packets in a communications session between the first and second nodes, a timeset comprising transmission and reception times at the first and second nodes; converting, responsive to the virtual clock, times in the timeset measured with respect to the first node clock or the second node clock, into times as would be measured with respect to the reference clock; calculating, for each packet of the series of packets, a forward one-way delay (FOWD) from the first node to the second node and a reverse one-way delay (ROWD) from the second node to the first node, responsive to the converted timeset.
-
公开(公告)号：US20150180599A1
公开(公告)日：2015-06-25
申请号：US14634906
申请日：2015-03-02
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Alon Geva , Gabriel ZIGELBOIM , Yaakov Stein
IPC: H04J3/06
CPC classification number: H04J3/0667 , H04J3/067 , H04J3/0682 , H04L41/06 , H04L43/106
Abstract: Apparatus for synchronizing a local clock to a master clock, the apparatus comprising: at least one port for receiving and transmitting packets; a local clock; and a packet inspector that uses time from the local clock to timestamp packets received at a port of the at least one port, copies timing information from the received packets if the packets are timing distribution packets that are transmitted between a master clock and a slave clock in order to synchronize the slave clock to the 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, wherein the local clock uses the copied timing information and timestamps to synchronize the local clock to the master clock.
Abstract translation: 用于将本地时钟同步到主时钟的装置，所述装置包括：用于接收和发送分组的至少一个端口; 当地时钟 以及分组检查器，其使用来自本地时钟的时间来在至少一个端口的端口处接收到分组的时间戳，如果分组是在主时钟和从时钟之间传送的定时分布分组，则从接收的分组复制定时信息 为了将从时钟同步到主时钟，并且将接收到的分组转发到从至少一个端口的端口传送到不是分组来源的分组源的分组目的地，其中本地时钟使用 复制的定时信息和时间戳将本地时钟同步到主时钟。
-
公开(公告)号：US10999207B2
公开(公告)日：2021-05-04
申请号：US16412461
申请日：2019-05-15
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Yaakov Stein
IPC: H04W48/18 , H04L12/801 , H04L12/725 , H04L12/851 , H04W28/02
Abstract: A method for an ingress node to send packets to an egress node, the method comprising: sending a plurality of service packets over a first network path; and sending a supplemental packet comprising a plurality of hash values over a second network path, wherein the plurality of packet hash values are computed respectively from the plurality of service packets. A method for an egress node to receive packets from an ingress node, the method comprising: extracting a plurality of packet hashes from a supplemental packet received from a second network path; computing a plurality of packet hash values, each hash value computed from a corresponding service packet comprised in a plurality of service packets received over a first network path; and recovering a lost service packet that is identified by comparing the plurality of computed packet hash values with the plurality of extracted packet hash values.
-
公开(公告)号：US10396971B2
公开(公告)日：2019-08-27
申请号：US15728519
申请日：2017-10-10
Applicant: RAD DATA COMMUNICATIONS LTD.
Inventor： Gabriel Zigelboim , Alon Geva , Yaakov Stein
Abstract: A method for measuring one-way delays in a communications network, the method comprising: maintaining, at a third node having a reference clock, a first virtual clock state emulating a first node clock located at a first node and a second virtual clock state emulating a second node clock located at a second node; registering a timeset comprising transmission and reception times at the first node and the second node, respectively, for each packet of a plurality of packets that are transmitted from the first node to the second node and reflected from the second node back to the first node; converting times in the timeset, responsive to the first and/or second virtual clocks, into times in accordance with the reference clock; calculating, for each packet of the plurality of packets, a forward one-way delay (FOWD) and a reverse one-way delay (ROWD), responsive to the converted timeset.
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.151 seconds)
