45 results about "Martian packet" patented technology

The invention provides a label distribution method and a label distribution system for data packets in a multiple protocol label switching (MPLS) network in order to reduce the number of label switching paths (LSP) in an MPLS domain and consumption of system resources. The method comprises the following steps of: determining a distributed label according to elements of the data packets in an ordered label distribution control mode; distributing the same label for the data packets if the elements of the data packets are the same; and distributing different labels for the data packets if the elements of the data packets are different, wherein the data packets are a group of data packets which are processed in an equivalent mode during forwarding. Through the method and the system, the number of the LSP and label information to be stored are reduced, the system resources are saved, an MPLS forwarding table entry to be installed is reduced, a label distribution flow is simplified and the data forwarding efficiency is increased.

Method and apparatus for supporting the forwarding of received data packets in a router (402,702) of a packet- switched network. A forwarding table (706a) is configured in the router based on aggregating router keys and associated aggregation related instructions received from a key manager (400,700). Each aggregating router key represents a set of destinations. When a data packet (P) is received comprising an ingress tag derived from a sender key or router key, the ingress tag is matched with entries in the forwarding table. An outgoing port is selected for the packet according to a found matching table entry that further comprises an associated aggregation related instruction. An egress tag is then created according to the aggregation related instruction, and the packet with the created egress tag attached is sent from the selected outgoing port to a next hop router.

A method of operating a mobile communications network arranged to communicate data packets between a mobile terminal and a packet data network via one or more routers, wherein the one or more routers include routing information for routing data packets, the method comprising establishing a data packet pathway for communicating data packets between a first Internet Protocol, IP, address associated with the mobile terminal and a second IP address associated with the packet data network, the data packet pathway including a first local gateway, wherein a local gateway is a first point within the mobile communications network through which all data packets communicated over the data packet pathway from the second IP address to the first IP address must pass; communicating one or more data packets between the first and second IP addresses via the data packet pathway; selecting a second local gateway; updating the routing information of at least one of the routers such that the second local gateway replaces the first local gateway in the data packet pathway; and communicating one or more data packets between the first and second IP addresses via the data packet pathway.

Hybrid security architecture (HSA) provides a platform for middlebox traversal in the network. The HSA decouples the middlebox control from network forwarding. More specifically, such embodiments may receive a data packet having a packet header including an Ethernet header identifying source and destination addresses in the network. A traffic type of the data packet is determined. Then, layer-2 forwarding information, which encodes a set of non-forwarding network service provider middleboxes in the network to be traversed by the data packet, is determined based on the traffic type. The layer-2 forwarding information is inserted into the Ethernet header and the data packet is forwarded into the network. The data packet will then traverse, according to the layer-2 forwarding information, a sequence of the middleboxes in the network, wherein at least one non-forwarding network service will be provided by each of the middleboxes to the data packet in a sequence.

A method for forwarding data packet, a communication system, a Carrier Grade Network Address Translation (CGN) device, and an access gateway are provided. The CGN device communicates with the access gateway through an Internet Protocol Version 4 (IPv4) network and is used for receiving a first data packet forwarded by the access gateway and determining whether the first data packet is an IPv4 packet or an IPv6-over-IPv4 tunnel packet; forwarding the first data packet to the IPv4 network if the first data packet is the IPv4 packet; and decapsulating the first data packet if the first data packet is the IPv6-over-IPv4 tunnel packet to a first IPv6 packet, and sending the first IPv6 packet to an IPv6 network or the IPv4 network. Therefore, technical problems of fully utilizing the IPv4 network and, gradually increasing deployment of the IPv6 network, and realizing communication are solved.

A method, system, and apparatus are provided to avoid dropping data packets between computers coupled on a network. In one example, the system receives a plurality of data packets from one or more sending servers into a receive queue of a first network interface device (e.g., Fiber Channel host bus adapter) in a receiving server. The receive queue includes addresses to data buffers to store a predetermined number of data packets. The system monitors the number of data packets stored in the data buffers waiting for read out by a software application. The system detects a potential overflow of the receive queue in response to a number of unused data buffers of the receive queue. In response to detecting the potential overflow, the system performs preemptive actions to avoid dropping at least one of the plurality of data packets.

Apparatus for local access to data while roaming with a mobile telephony device at a roaming network. The apparatus is located at the roaming network and comprises a filter having a data packet or packet header inspection unit for inspecting packet information or headers to identify data packets addressed from the roaming telephony device for use via a home network data packet gateway, and a packet diverter for diverting at least some of the identified packets to a local data packet gateway; the filter setting up a diversion tunnel for additional packets of the same session for directly routing all packets of the identified session to the local data packet gateway. Mobile devices are today programmed to send data to their home network for browsing via the home network data packet gateway. The filter allows data to be redirected to the roaming network so that Internet browsing and like data uses can be carried out directly by the roaming user at less cost and greater efficiency and quality of service.

The invention refers to a radio network entity for transmitting data packets from an IP gateway in a telecommunications network to a user terminal via a plurality of mobile terminations through a single IP connection. The radio network entity comprises:a module for establishing IP connections between the IP gateway and mobile terminations, for activating first and second IP connections and first and second radio connections in response to respective requests from first and second mobile terminations;a packet splitter that applies a splitting algorithm to determine which radio connection is to be used to transmit which data packets, the packet splitter being in communication with a packet combiner in the user terminal;wherein the packet splitter splits the data packets coming only from the first IP connection selected by the user terminal as the only IP connection through which the data packets are received, thereby transmitting data packets over said first and second radio connections for combining at the packet combiner.

In a method for forwarding a packet, a physical forwarding unit receives a data packet, may find a first subnet route based on a destination IP address of the data packet, and forwards the data packet to a virtual forwarding unit via an output interface of the first subnet route. The virtual forwarding unit receives the data packet may find a first host route based on the destination IP address of the data packet, and forwards the data packet based on the first host route.

The invention discloses a transmission method for safely transmitting a data packet sent out by a sensor to a base station in an internet of things. The transmission method comprises the steps of: calculating out an optimal alterable included angle theta via a remaining time delay TZ of the current sending data packet in the internet of things; in a [-theta / 2, theta / 2] sector area with a connecting line between a current sender node and the base station as a reference, broadcasting a request sending packet to all neighboring nodes along a base station direction, waiting for a backoff time after the neighboring nodes receive the request sending packet and then replying a response packet; checking whether a distance between the current sender node and the base station is within a communication radius r2 of the current sender node, and if yes, directly sending the sending data packet to the base station, thereby finishing a data transmission task; if no, randomly selecting one neighboring node which replies the response packet in the [-theta / 2, theta / 2] sector area of the current sender node as a relay node, and sending the data packet to the relay node; replying a confirmation packet correspondingly after the relay node receives the data packet and then taking the relay node as the current sender node to repeat above process till the data packet is transmitted to the base station.

Embodiments of the invention disclose a data transmission method for virtualized networks, a node controller and a data transmission system for virtualized networks. The method comprises the following steps: a first node controller reads a data packet from a storage area of a source virtual machine, wherein the first node controller is a local node controller of the source virtual machine; the data packet is parsed to get a destination address, and a second node controller is determined according to the destination address, wherein the second node controller is a local node controller of a destination virtual machine directed by the destination address; and the data packet is written into the storage area address of the destination virtual machine through the second node controller. A data packet transmitting operation is converted into a storage space shifting operation. The operation is quick, and there is no need to additionally occupy the protocol layer processing ability of NCs. Moreover, performance bottlenecks caused when network card equipment becomes an access hotspot are avoided.