H04L49/552

Highly reliable path accommodation design apparatus and method

Accommodation design for wavelength and sub-λ paths in a communication network is performed. If sub-λ path accommodation is possible according to search for a wavelength path present in a single-hop logical route, the accommodation in the wavelength path is executed. If sub-λ path accommodation is possible according to search for a wavelength path present in a multi-hop logical route, a logical route is selected based on the wavelength path and the sub-λ path is accommodated in the wavelength path. Additionally, each physical route suitable for the sub-λ path accommodation is searched for. If the route can accommodate a wavelength path set in a single-hop logical route by available wavelength allocation, the sub-λ path is accommodated in the wavelength path. Furthermore, routes in consideration of overlapping of nodes, pipelines, and links and operation rate are selected based on information about the start and end nodes of each of redundant routes.

Relay system and switching device
09794194 · 2017-10-17 · ·

A MCLAG table retains a first port in association with a first identifier. A port control unit controls a first port group to a transmission/reception permitted state when the first port group is set to active, and controls the first port group to a transmission/reception prohibited state when the first port group is set to standby. A relay processing unit relays a frame containing the first identifier as a destination port to the first port group when the first port group is controlled to the transmission/reception permitted state and relays the same to a bridge port when the first port group is controlled to the transmission/reception prohibited state. When the first port group is controlled to the transmission/reception prohibited state, a transmission stop instructing unit instructs a peer device to stop frame transmission to the first port group.

Method for operating TSN-enabled network coupling elements

A method for operating a TSN-enabled network coupling element, in particular, a TSN bridge, which is designed to receive redundant data packets. The method includes ascertaining at least one number of expected, non-received data packets via the TSN-enabled network coupling element, and transmitting the ascertained number of expected, non-received data packets from the TSN-enabled network coupling element to a control instance.

Method for operating TSN-enabled network coupling elements

A method for operating a TSN-enabled network coupling element, in particular, a TSN bridge, which is designed to receive redundant data packets. The method includes ascertaining at least one number of expected, non-received data packets via the TSN-enabled network coupling element, and transmitting the ascertained number of expected, non-received data packets from the TSN-enabled network coupling element to a control instance.

Active multi-path network redundancy with performance monitoring

A receiving network node (210) configured to select from received packets differing by time of initial transmission from a sending network node (230), and accepting for transmission, based on initial transmission time, the selected packets to an application layer (740). An internetworked processor node configured to: (a) read a sequence number and an originator identifier of a received packet message (810); (b) compare a stored highest sequence number associated with the originator identifier with the received packet sequence number (820); (c) if the received packet sequence number is less than or equal to the stored highest sequence number associated with the originator identifier, then discard (840) the received packet; and (d) if the received packet sequence number is greater than the stored highest sequence number associated with the originator identifier, then deliver (860) the message of the received packet to an application based on an upper layer protocol.

Methods and apparatus for transmitting data

A method, apparatus and computer program product are provided for facilitating transmission of data. A method and apparatus may detect one or more items of data that were transmitted with at least one error or unsuccessfully delivered to a device. The method and apparatus may enable retransmission of the items of data in at least one transport block. The method and apparatus may enable transmission of one or more items of new data in the at least one transport block such that a size of the new data does not exceed a variable size limit of a transport block size. The variable size limit may be dependent on one or more sizes of one or more transport blocks. The method and apparatus may determine that the variable size limit comprises a size smaller than a size of the at least one transport block.

FACILITATING COMMUNICATION OF DATA PACKETS USING CREDIT-BASED FLOW CONTROL
20170289066 · 2017-10-05 ·

Apparatuses and methods are described that provide for credit based flow control in a network in which a public buffer is supported at a receiver node, where a transmitter node can control the use of the public buffer. In particular, the transmitter node determines a buffer credit value (TCRi) for each virtual lane of the transmitter node. The buffer credit value (TCRi) is negative (e.g., less than 0) in an instance in which a respective virtual lane private buffer is fully used and thus reflects a loan of credits from the public buffer. In addition, the transmitter node knows the needed buffer size per virtual lane for transmitting a packet in advance based on the round trip time (RTT) and maximum transmission unit (MTU) for the packet and is precluded from consuming more space on the public buffer than required to meet RTT.

Automatic multimedia upload for publishing data and multimedia content

Disclosed herein is a method and system for utilizing a digital data capture device in conjunction with a Bluetooth (BT) enabled mobile device for publishing data and multimedia content on one or more websites automatically or with minimal user intervention. A client application is provided on the BT enabled mobile device. In the absence of inbuilt BT capability, a BT communication device is provided on the digital data capture device. The BT communication device is paired with the BT enabled mobile device to establish a connection. The client application detects capture of data and multimedia content on the digital data capture device and initiates transfer of the captured data, multimedia content, and associated files. The digital data capture device transfers the captured data, multimedia content, and the associated files to the client application. The client application automatically publishes the transferred data and multimedia content on one or more websites.

System and method for reliable messaging between application sessions across volatile networking conditions

An electronic device is provided comprising a processor, a memory coupled to the processor, and a communications module saved in the memory and an application saved in the memory. The communications module configures the processor to generate a first transmission sequence number associated with a transport message to be sent to a remote device, include the first transmission sequence number in the transport message, and send the transport message to the remote device.

PACKET RETRANSMISSION
20220311548 · 2022-09-29 ·

Through the identification of different packet-types, packets can be handled based on an assigned packet handling identifier. This identifier can, for example, enable forwarding of latency-sensitive packets without delay and allow error-sensitive packets to be stored for possible retransmission. In another embodiment, and optionally in conjunction with retransmission protocols including a packet handling identifier, a memory used for retransmission of packets can be shared with other transceiver functionality such as, coding, decoding, interleaving, deinterleaving, error correction, and the like.