14 results about "Stream Control Transmission Protocol" patented technology

The invention discloses a network address translation gateway implementation method and device based on a flow control transmission protocol, equipment and a medium, and relates to the technical field of computer networks and data transmission, and the method comprises the following steps: after receiving a network message, identifying the network message by using a P4 technology through a message identification end, determining whether the network message is a target message of a flow control transmission protocol; if the network message is determined to be a target message, determining connection information of the target message by using a P4 technology through a message processing end, allocating a unique internal address and a port number for connection of the target message according to the connection information, and packaging the target message so as to send the packaged message to a gateway conversion end; and converting the internal address and the port number of the packaged message through a gateway conversion end so as to forward the converted message to a target address. Therefore, smooth traversal and forwarding of the SCTP message can be realized on the premise of not modifying the existing NAT gateway equipment or introducing new equipment.

A method for providing stream control transmission protocol (SCTP) multihoming between a Kubernetes environment and a non-Kubernetes environment includes receiving, at an SCTP multihoming router (SMR) deployed as a pod within the Kubernetes environment and from a client in the non-Kubernetes environment, an SCTP INIT message for establishing a multi-homed SCTP association between first and second Internet protocol (IP) addresses of the client and first and second local IP addresses of the SMR. The first and second local IP addresses of the SMR are added to an SCTP header of the SCTP INIT message. Source and destination network address translations (NATs) are performed to change a source IP address and a destination IP address in an IP header of an IP datagram carrying the SCTP INIT message to a third local IP address of the SMR and a service IP address of a service in the Kubernetes environment, respectively.

This network node includes: a reception unit that receives, from a terminal, a first message requesting establishment of a data channel via a first network node; and a transmission unit that transmits, to a second network node, a second message requesting preparation of setting of a DTLS (Datagram Transport Layer Security) association and setting of an SCTP association between the terminal and the second network node via the first network node.

A method of feeder link switchover performed by a base station disposed in a non-terrestrial network (NTN) communication environment includes continuously monitoring a stream control transmission protocol (SCTP) status, upon detecting a disconnection of a first feeder link between the base station on a satellite and a first ground-based entity based on the SCTP status, broadcasting a first message to indicate the disconnection of the first feeder link across a cell where the base station is located, and triggering a transport network layer (TNL) node on the satellite to release TNL resources allocated towards the first ground-based entity and / or configure a transport association for a second feeder link between the base station on the satellite and a second ground-based entity before the disconnection of the first feeder link based on the SCTP status.

Embodiments include methods, electronic device, storage medium, and computer program to implement parallel Data-gram Transport Layer Security (DTLS) connections over a stream control transmission protocol (SCTP) association. In one embodiment, a method at a first network node for encoding user messages for secure transmission to a second network node comprises: initiating a Datagram Transport Layer Security (DTLS) connection over a stream control transmission protocol (SCTP) association through a DTLS handshake using an existing Authenticated Chunks for SCTP (SCTP-AUTH) key from an existing DTLS connection over the SCTP association that transmits user messages: deriving a new SCTP-AUTH key from the initiated DTLS connection: transmitting further user messages through the initiated DTLS connection with the new SCTP-AUTH key: and closing the existing DTLS connection over the SCTP association upon confirmation that SCTP packets encrypted with the existing DTLS connection and SCTP packets authenticated by the existing SCTP-AUTH key have been delivered.

A method for providing stream control transmission protocol (SCTP) multihoming between a Kubernetes environment and a non-Kubernetes environment includes receiving, at an SCTP multihoming router (SMR) deployed as a pod within the Kubernetes environment and from a client in the non-Kubernetes environment, an SCTP INIT message for establishing a multi¬ homed SCTP association between first and second Internet protocol (IP) addresses of the client and first and second local IP addresses of the SMR. The first and second local IP addresses of the SMR are added to an SCTP header of the SCTP INIT message. Source and destination network address translations (NATs) are performed to change a source IP address and a destination IP address in an IP header of an IP datagram carrying the SCTP INIT message to a third local IP address of the SMR and a service IP address of a service in the Kubernetes environment, respectively.

Methods, systems, and apparatuses are provided for communicating between a first node and a second node via a service communication proxy (SCP). A stream control transmission protocol (SCTP) interface is established between the first node and the SCP. Communication occurs between the first node and the SCP via the established SCTP interface. Communication occurs between the second node and the SCP via a service-based interface (SBI). The first node does not support the SBI. The second node supports the SBI.

Embodiments of the present application provide a request sending method, a base station connection method, a device, equipment and a storage medium. The request sending method is applied to any base station in a plurality of base stations connected to a same core network side, and the method comprises: obtaining an identity code corresponding to the base station and a stream control transmission protocol (SCTP) heartbeat parameter between the base station and the core network side, wherein the identity codes corresponding to each base station in the plurality of base stations are different; determining a first heartbeat period of the base station for sending heartbeat signaling to the core network side based on the identity code and the SCTP heartbeat parameter; so that the first heartbeat periods corresponding to each base station in the plurality of base stations are different; sending the heartbeat signaling to the core network side based on the first heartbeat period; and sending a connection establishment request to the core network side in a case where a response signaling sent by the core network side is not received. The request sending method according to the embodiments of the present application can avoid the generation of a signaling storm and improve user experience.

A method performed by a first node, for handling transmission of one or more packets and / or one or more messages from a sending to a receiving node. The first node operates in a communications network having at least one intermediate node between the sending and the receiving node. The first node sends a first indication to a second node explicitly indicating whether or not at least one of: i) the one or more packets are, or are to be, duplicated over a General Packet Radio Service Tunneling Protocol (GTP) layer, ii) duplication of the packets over the GTP layer is enabled, supported and / or active, iii) one or more messages are, or are to be, duplicated over a Stream Control Transmission Protocol (SCTP) layer between the first node and one or more next hop nodes, and iv) duplication of the messages over the SCTP layer is enabled, supported and / or active.

A communication method includes a data channel service entity that is configured to transmit real-time interaction information between a first user equipment (UE) and a second UE that are in a same call service. The communication method includes establishing a first data channel with the first UE, establishing a first video channel with the second UE; sending, to the second UE through the first video channel, first real-time interaction information sent by the first UE through the first data channel, and / or sending, to the first UE through the first data channel, second real-time interaction information sent by the second UE through the first video channel. The first data channel is used to transmit data according to Stream Control Transmission Protocol (SCTP), and the first video channel is used to transmit data according to User Datagram Protocol (UDP).

A method and a network node for rekeying or re-authenticating security protection for Stream Control Transmission Protocol (SCTP) association using Datagram Transport Layer Security (DTLS) encryption for SCTP chunk transfer. The method comprises establishing a new DTLS connection between a first network node and a second network node using an existing SCTP association employing an existing DTLS connection between the two nodes to transfer DTLS handshake messages. The method further comprises commencing to use the new DTLS connection for protecting the SCTP chunk transfer using the DTLS encryption between the two nodes by transmitting SCTP chunks protected by DTLS encryption using the new DTLS connection; and closing the existing DTLS connection after an elapsed time period after commencing to use the new DTLS connection.

A method for reallocating stream control transport protocol sessions in a virtualized central unit is disclosed. The method may comprise the steps of: receiving state information from an OAM entity; on the basis of the state information, reallocating, to a second entity, a first portion of session information for one or more SCTP connections managed by a third entity; transmitting the reallocated first portion of the session information to the second entity; and receiving, from the second entity, completion information indicating that an SCTP reconnection of the second entity has been completed.

A method by a first network node in an Integrated Access and Wireless Access Backhaul (IAB) network is provided. The method includes, in the absence of an New Radio (NR) link between the first network node and a second network in the IAB network, sending, to the second network node over Long Term Evolution, LTE, radio, one or more Stream Control Transmission Protocol / Internet Protocol (SCTP / IP) packets. The one or more SCTP / IP packets includes F1-Application Protocol (F1-AP) signaling.

Provided are a flow control transmission protocol (SCTP) link establishment method, device and apparatus, the method being applied to a first network device, the first network device comprising a configuration thread and an SCTP processing thread, the method comprising: the SCTP processing thread receiving a configuration message sent by the configuration thread, the configuration message comprising link configuration data; the SCTP processing thread processes the link configuration data according to the SCTP to generate link control block information; and the SCTP processing thread establishes a data link with a second network device based on the link control block information. According to the scheme provided by the invention, frequent switching between threads is reduced, so that the system overhead is reduced.