公开(公告)号：US20220417085A1

公开(公告)日：2022-12-29

申请号：US17903030

申请日：2022-09-05

申请人： Avago Technologies International Sales Pte. Limited

发明人： Suresh VOBBILISETTY ,  Phanidhar KOGANTI

IPC分类号： H04L41/0677 ,  H04L49/00 ,  H04L49/55 ,  H04L45/02 ,  H04L12/46 ,  H04L45/586

摘要： One embodiment of the present invention provides a switch system. The switch includes a port that couples to a server hosting a number of virtual machines. The switch also includes a link tracking module. During operation, the link tracking module determines that reachability to at least one end host coupled to a virtual cluster switch of which the switch is a member is disrupted. The link tracking module then determines that at least one virtual machine coupled to the port is affected by the disrupted reachability, and communicates to the server hosting the affected virtual machine about the disrupted reachability.

公开(公告)号：US11522815B2

公开(公告)日：2022-12-06

申请号：US17263303

申请日：2019-07-31

申请人： NEC Corporation

发明人： Yasuhiro Mizukoshi

IPC分类号： H04L49/55 ,  H04L12/437

摘要： A switch comprises: a register; a control entry holding part that holds control entries set by a predetermined control apparatus; a packet processing part that selects a control entry to be applied to a received packet by referring to a value on the register in addition to match conditions for the control entry; a register change part that changes the value on the register in a case where a change instruction for the value on the register is set to the control entry selected.

公开(公告)号：US20220385597A1

公开(公告)日：2022-12-01

申请号：US17574161

申请日：2022-01-12

申请人： ECI Telecom Ltd.

发明人： Aharon LAVON

IPC分类号： H04L49/15 ,  H04L49/253 ,  H04L49/55 ,  H04L41/0659

摘要： Dynamic fabric systems and methods are disclosed for providing connections between endpoints of a communication network. An exemplary dynamic fabric system can include backplane lanes, a dynamic fabric device, and a control device. The dynamic fabric device can include local fabric lanes and a network interface device configurable to communicatively connect the local fabric lanes to a network. The dynamic fabric device can also include a local switch configurable forward messages to backplane lanes and an interconnect configurable to statically connect local fabric lanes and corresponding backplane lanes. The dynamic fabric device can also include a controller configurable to create or break these static connections. The control device can provide instructions to the dynamic fabric device to create or break the static connections based on changes in the number of active dynamic fabric devices installed in the dynamic fabric system.

公开(公告)号：US20220360488A1

公开(公告)日：2022-11-10

申请号：US17658445

申请日：2022-04-08

申请人： Realtek Semiconductor Corporation

发明人： Sz-Han WANG ,  Kai-Wen CHENG ,  Ming-Dao CHEN

IPC分类号： H04L41/0604 ,  H04L49/55

摘要： A network switch is configured to receive packet data. The network switch includes a memory and a processor. The memory is configured to store an access control list and an abnormity detecting program, filter the packet data according to the access control list, and perform an abnormity detecting procedure on the packet data according to the abnormity detecting program. When at least one abnormity event occurs in one of a plurality of time intervals, a counting value increases. When the counting value reaches a counting threshold value, the memory sends an abnormity notification to the processor and the processor performs an abnormity processing procedure on the packet data.

公开(公告)号：US11438789B2

公开(公告)日：2022-09-06

申请号：US16851294

申请日：2020-04-17

申请人： VMware, Inc.

发明人： Jegadish Devadoss ,  Kartik Kamdar ,  Stephen Craig Connors ,  Satheesh Kumar Rajendran ,  Ram Kumar Manoharan

IPC分类号： H04W28/02 ,  H04L43/062 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/2425 ,  H04L47/80 ,  H04L45/302 ,  H04L43/10 ,  H04L45/50 ,  H04L49/20 ,  H04L49/55

摘要： Some embodiments provide a method for quantifying quality of several service classes provided by a link between first and second forwarding nodes in a wide area network (WAN). At a first forwarding node, the method computes and stores first and second path quality metric (PQM) values based on packets sent from the second forwarding node for the first and second service classes. The different service classes in some embodiments are associated with different quality of service (QoS) guarantees that the WAN offers to the packets. In some embodiments, the computed PQM value for each service class quantifies the QoS provided to packets processed through the service class. In some embodiments, the first forwarding node adjusts the first and second PQM values as it processes more packets associated with the first and second service classes. The first forwarding node also periodically forwards to the second forwarding node the first and second PQM values that it maintains for the first and second service classes. In some embodiments, the second forwarding node performs a similar set of operations to compute first and second PQM values for packets sent from the first forwarding node for the first and second service classes, and to provide these PQM values to the first forwarding node periodically.

公开(公告)号：US11412077B2

公开(公告)日：2022-08-09

申请号：US17063798

申请日：2020-10-06

申请人： Dell Products L.P.

发明人： Dinesh Kumar Mani ,  Amitabh Jawahar Abraham ,  Shradha Ambani

IPC分类号： H04L69/323 ,  H04L49/55 ,  H04L49/253 ,  H04L69/324

摘要： A multi-logical port data traffic stream preservation system includes a networking device coupled to a computing device via its physical port, a first networking fabric via a first uplink, and a second networking fabric via a second uplink. The networking device receives communications from the computing device that identify first and second logical ports provided using the physical port on the computing device, a first data traffic type associated with the first networking fabric and transmitted on the first logical port, and a second data traffic type associated with the second networking fabric and transmitted on the second logical port. If the first uplink becomes unavailable, the networking device transmits a communication to the computing device that causes the computing device to stop transmitting the first data traffic type via the first logical port while continuing to transmit the second data traffic type via the second logical port.

公开(公告)号：US20220247697A1

公开(公告)日：2022-08-04

申请号：US17619189

申请日：2019-06-24

申请人： Nippon Telegraph and Telephone Corporation

发明人： Shoko Oteru ,  Shuhei Yoshida ,  Yuta Ukon ,  Namiko Ikeda ,  Koyo Nitta

IPC分类号： H04L49/9057 ,  H04L49/55 ,  H04L47/28 ,  H04L1/16 ,  H04L47/34

摘要： A data sequence correction method for temporarily saving data with sequence information in a ring buffer and performing sequence correction is provided. The ring buffer includes a number of storage regions, a monitoring section having one or more continuous sequence numbers, and an acceptance section having a first or second sequence number of the monitoring section as a start sequence number and a sequence number immediately preceding the start sequence number of the monitoring section as an end sequence number. The method includes, when a value determined based on a remainder obtained by dividing a sequence number of received data by the number of storage regions is inside the acceptance section, writing the received data in a position of the storage region corresponding to the determined value, and when data are written in the entire monitoring section, reading out all the data in the monitoring section.

公开(公告)号：US11316803B1

公开(公告)日：2022-04-26

申请号：US16909900

申请日：2020-06-23

申请人： OPEN INVENTION NETWORK LLC

发明人： Keith William Melkild

IPC分类号： H04L12/939 ,  H04L49/55 ,  H04L41/0654 ,  H04L43/10 ,  H04L41/0668 ,  H04L43/0817 ,  H04L43/0811

摘要： An example operation may include a system, comprising one or more of receiving a VNFCI status notification resumption with an active state, retrieving a timestamp of the VNFCI state change to active, retrieving a timestamp of a peer VNFCI state change to active, checking with a VIM to determine if the VNFCI network isolated while active, checking with the VIM to determine if the peer VNFCI network isolated while active, sending a first state change request message with standby to the peer VNFCI when one or more of: the peer VNFCI was network isolated, and the VNFCI was not network isolated, sending a second state change request message with standby to the peer VNFCI when one or more of: the VNFCI is not the preferred standby instance, and the peer VNFCI was not network isolated, and the VNFCI was not network isolated, starting a first retry timer for the peer VNFCI when one or more of: the first state change request message is sent, and the second state change request message is sent, sending a third state change request message with standby to the VNFCI when one or more of: the VNFCI is the preferred standby instance, and the peer VNFCI was network isolated, and the VNFCI was network isolated, sending a fourth state change request message with standby to the VNFCI when one or more of: the peer VNFCI was not network isolated, and the VNFCI was network isolated, and starting a second retry timer for the VNFCI when one or more of: the third state change request message is sent, and the fourth state change request message is sent.

公开(公告)号：US11316779B2

公开(公告)日：2022-04-26

申请号：US16794297

申请日：2020-02-19

申请人： FUJITSU LIMITED

发明人： Shotaro Koshinuma

IPC分类号： H04L12/709 ,  H04L12/939 ,  H04L45/24 ,  H04L49/55

摘要： A communication device redundantly configured with another communication device includes: a first port configured to transmit a packet through a second communication line configuring link aggregation with a first communication line of the other communication device; a second port configured to transmit and receive a packet through a fourth communication line configuring link aggregation with a third communication line of the other communication device; a third port configured to transmit a packet to the other communication device through a fifth communication line; and a first processor configured to: transfer a packet received by the second port to the first port or the third port; detect a failure of the second communication line; detect a failure of the fifth communication line; and shut down the second port when detecting the failure of the second communication line and the failure of the fifth communication line.

公开(公告)号：US11310099B2

公开(公告)日：2022-04-19

申请号：US16903305

申请日：2020-06-16

申请人： Barefoot Networks, Inc.

发明人： Chaitanya Kodeboyina ,  John Cruz ,  Steven Licking ,  Michael E. Attig

IPC分类号： H04L12/24 ,  H04L29/06 ,  H04L12/741 ,  H04L12/935 ,  H04L12/717 ,  H04L12/715 ,  H04L41/0654 ,  H04L69/22 ,  H04L45/745 ,  H04L41/0677 ,  H04L49/00 ,  H04L45/42 ,  H04L49/55 ,  H04L45/28 ,  H04L45/64

摘要： A method of identifying a failed egress path of a hardware forwarding element. The method detects an egress link failure in a data plane of the forwarding element. The method generates a link failure signal in the data plane identifying the failed egress link. The method generates a packet that includes the identification of the egress link based on the link failure signal. The method sets the status of the egress link to failed in the data plane based on the identification of the egress link in the generated packet.