摘要:
The present disclosure relates to a communication arrangement (110, 130) adapted for link aggregation of a plurality of communication links (120a, 12b, 120c). The communication arrangement (110, 130) is adapted to communicate via the plurality of communication links (120a, 120b, 120c) and comprises a traffic handling unit (112, 132) that is adapted to obtain data segments (414-417, 419-421, 423-425) to be transmitted, and to identify one or more data flows (401, 402, 403, 404) in said data segments. The traffic handling unit is adapted to attach sequence numbers, SEQ, to data segments associated with each identified data flow (401, 402, 403, 404), wherein sequence numbers are independent between data flows and to select a communication link for transmission of a data segment associated with a certain data flow (401, 402, 403, 404). The selecting comprises selecting a previous communication link that has been used for transmission of a previous data segment from said certain data flow (401, 402, 403, 404) if possible, and selecting any communication link otherwise.
摘要:
A technique includes establishing a first connection that includes an uplink radio bearer between a first sidelink user device and the base station and a downlink radio bearer between the base station and a second sidelink user device; receiving one or more PDUs from the first sidelink user device; and transmitting one or more of the received PDUs to the second sidelink user device; wherein a protocol entity of the base station is a common protocol entity that both tracks sequence numbers of the one or more PDUs that are received by the protocol entity of the base station from the first sidelink user device via the uplink radio bearer and tracks sequence numbers of the one or more PDUs that are transmitted by the protocol entity of the base station to the second sidelink user device via the downlink radio bearer.
摘要:
A method and apparatus for receiving a notification of missing packets include receiving a set of data packets transmitted by a device and having a corresponding set of sequence numbers, identifying one or more data packets having corresponding sequence numbers that fall within the set of sequence numbers and are yet to be received, receiving an indication from the device that the one or more data packets will not be transmitted by the device, and processing the set of data packets without the one or more data packets in response to receiving the indication.
摘要:
In exemplary embodiments of the present invention, special metadata is added to link monitoring protocol messages exchanged by pairs of adjacent nodes to allow such nodes to detect communication link failures and determine whether the failure affects an incoming communication link or an outgoing communication link. The link monitoring protocol messages may be augmented BFD messages.
摘要:
The present invention relates to a method for data inspection, wherein said data is provided in parts, wherein for inspecting said data said parts are checked upon matching one or more predefined signatures, wherein said method being performed in a memory available to a computational device, by said checking device upon receiving an out-of order part of a sequence of parts, said part is checked for matching in forward and backward direction of said sequence, and the forward state and the backward state of said both checkings are temporarily saved, and upon receiving an in-order part of said sequence said part is checked for matching in forward direction of said sequence and if said packet is within a gap between the first part and the last part of said sequence said part is also checked for matching in backward direction of said sequence, wherein said backward state or said forward and backward state are updated or temporarily saved.
摘要:
The present disclosure generally relates to packet processing by a network element that transfers first and second packet flows of the same traffic handling class (e.g., the Ethernet express traffic class). A method aspect performed by a network element comprises the step of receiving, from a network controller, information defining a relative forwarding order between first and second packet flow packets. Upon receipt, at at least one ingress port of the network element, of a first and a second packet, it may be determined that the first packet belongs to the first packet flow and the second packet to the second packet flow. The first and second packets will then be forwarded towards at least one egress port of the network element in an order defined by the information received from the network controller.
摘要:
Kommunikationsgerät (200) für ein redundant betreibbares industrielles Kommunikationsnetz und Verfahren zum Betrieb eines Kommunikationsgeräts (200) Die Erfindung betrifft ein Kommunikationsgerät (200) für ein redundant betreibbares industrielles Kommunikationsnetz mit zumindest einer ersten (211) und einer zweiten (212) Sende- und Empfangseinheit, die jeweils eine Schnittstelle für eine Kommunikationsverbindung innerhalb des industriellen Kommunikationsnetzes aufweisen. Außerdem sind ein mit der ersten (211) und der zweiten (212) Sende- und Empfangseinheit verbundenes Koppelelement (214) und eine Redundanzeinheit (213) vorgesehen, die zumindest eine Multiplexereinheit (231) zur parallelen Weiterleitung redundant zu sendender Datenrahmen an beide Sendeeinheiten (211, 212) umfasst. Die Redundanzeinheit (213) umfasst eine zentrale Duplikatefiltereinheit (232) für sämtliche Sende- und Empfangseinheiten und ist für eine beide Empfangseinheiten (211, 212) erfassende Detektion empfangener redundanter Datenrahmen ausgestaltet und eingerichtet.