27 results about "Label switching" patented technology

The invention provides a network flow analysis method, device, equipment and medium, and the method comprises the steps: analyzing a packet header of any data packet, and when the packet header of any data packet is analyzed to a tunnel encapsulation layer protocol, if the tunnel encapsulation layer protocol is a multi-protocol label switching protocol, sending the packet header of any data packet to a network; the method comprises the following steps of: storing a first analysis result which comprises metadata extracted from header information of each layer of protocol which is analyzed at present when a label stack of a multi-protocol label switching protocol is analyzed and a protocol type identifier which cannot be analyzed exists in a current analysis position of the label stack of the multi-protocol label switching protocol is identified, and then returning to an initial analysis position of the label stack so as to obtain a second analysis result which comprises metadata extracted from header information of each layer of protocol which is analyzed at present; and determining a target analysis protocol from the protocol feature library, and performing analysis again from the initial analysis position to obtain a second analysis result, thereby determining a stream analysis result based on the first analysis result, the second analysis result and third analysis results of the remaining protocols. According to the embodiment of the invention, information loss in an analysis process can be avoided.

The application discloses a kind of security transmission and access method for hydropower station data, it is related to the security transmission and access field of hydropower station data, comprising: the application is by analyzing the service type of hydropower station data and equipment control level, dynamically add high, medium, low security level label, and according to security level label for hydropower station data preselect corresponding transmission path;Real-time acquisition quality index, when monitoring any quality index exception of transmission path, after generating path quality degradation event, priority ranking and screening are carried out to standby path, and data stream switching is carried out using multi-protocol label switching technology;By establishing user access frequency baseline, and real-time monitoring its access behavior to high security level data, dynamically implement access permission downgrade or additional authentication requirement, realize the real-time requirement of hydropower station data transmission, and the dynamic risk management of access control, effectively improve the real-time of hydropower station data whole process.

An embodiment of the present invention provides a method for notifying an associated path, a path calculation client, and a path calculation unit. The notification method includes: constructing a Path Computation Element Communication Protocol (PCEP) message according to an associated label switched path, where the PCEP message includes extended association identification information, and the extended association identification information is used to represent an association identification assigned to the associated label switched path, and the length of the extended association identification information is greater than 2 bytes; sending the PCEP message to the path calculation unit, so that the path calculation unit establishes or updates the association relationship information of the associated label switched path according to the extended association identification information. By carrying the extended association identification information with a length greater than 2 bytes in the PCEP message, the embodiment of the present invention solves the problem that the association identification exceeding the basic value cannot be transmitted between devices and controllers in practical applications.

A method to establish an optimized frame format used by a first compute node (21) acting as ingress PE and a second compute node (22) acting as egress PE in the transport of overlay ethernet traffic containing an IP payload from the source overlay endpoint attached to or hosted in the first compute node (21) to the destination overlay endpoint attached to or hosted in the second compute node (22) through a Multi Protocol Label Switching, MPLS, underlay network (2), where the frame format is a conventional MPLS tagged ethernet frame format, wherein an MPLS label stack is inserted between the ethernet header and the IP header of the overlay ethernet frame, where the single ethernet header carries the destination and source overlay Media Access Control, MAC, addresses when the frame was originated from the source overlay endpoint, where the MPLS header of the frame comprises a top label with the Label Switch Path, LSP, label towards the destination Provider Edge, PE, router, ie. egress PE, and a bottom label, e.g. an optimization MPLS label, holding information enabling the forwarding mechanism in the egress PE router to restore the original destination and source overlay MAC addresses.

Mobile User Plane (MUP) over Multi-Protocol Label Switching (MPLS) is implemented over an access an access network connecting a provider edge router to a gateway router, the gateway router being connected to a base station having a wireless connection to user equipment (UE). Traffic between the provider edge router and the gateway router is routed according to both of multi-protocol label switching (MPLS) protocol and mobile user plane (MUP) protocol. An MUP-controller may discover the UE, base station, and corresponding tunnel information and transmit this information to the provider edge router and gateway router, which then create an MPLS label and routing entries to implement MUP.

In one embodiment, a wireless access point receives, from a mobile system, a broadcast beacon that includes a roaming notification indicating that the mobile system intends to roam to the wireless access point. The wireless access point allocates, after receiving the broadcast beacon from the mobile system, an orthogonal frequency-division multiple access resource unit for use by the mobile system. The wireless access point sends a trigger message to the mobile system that includes an indication of the orthogonal frequency-division multiple access resource unit. The wireless access point performs, after sending the trigger message, a handoff exchange with the mobile system using the orthogonal frequency-division multiple access resource unit to attach the mobile system to the wireless access point.

Interworking between different layer two (L2) medias using network tunnels is provided by receiving, at a virtual gateway network element (GNE), a packet from a first L2 media type network for transmission to a second L2 media type network under the control of a different entities, wherein the first and second L2 media type networks are incompatible for direct packet transmission; removing, at the virtual GNE, ethernet encapsulation from the packet; re-encapsulating, at a network device located between the virtual GNE and a packet network, the packet in a multi-protocol label switching (MPLS) encapsulation; forwarding, over the packet network, the packet from the network device to a digital communication channel (DCC) associated with the second L2 media type network; replacing, at the DCC, the MPLS encapsulation with a link access protocol (LAP) encapsulation; and transmitting the packet encapsulated with the LAP encapsulation to the second L2 media type network.

The invention discloses a traffic management method, device and equipment and a storage medium, and relates to the technical field of computer network traffic management and optimization, and the method comprises the steps: obtaining a switch configuration address, a switch configuration path and a to-be-sent data packet; locking a mapping relation between each switch port and corresponding target equipment based on the switch configuration address, and determining a static address table; setting a routing path and a priority corresponding to each data flow based on the switch configuration path, and determining a static routing table; switching a network label corresponding to the to-be-sent data packet based on the static address table and the static routing table, and determining label switching information; and forwarding the to-be-sent data packet along the forwarding path identified by the label switching information to complete routing flow management. According to the invention, the static address table and the static routing table are utilized to accurately control the data flow and select the optimization path, network label switching is carried out to realize rapid and efficient forwarding, and the flow optimization efficiency is improved.

U-Turn detour paths, though the head-end router of a primary label switched path (LSP), are configured and used to enable fast failover to a secondary LSP, while avoiding reserving bandwidth (e.g., on links unused by primary and secondary paths) unnecessarily.

The application discloses a pre-re-routing method based on an extended OSPF protocol, comprising the following steps: extending the OSPF protocol, including extending a link state advertisement (LSA) and optimizing a constrained shortest path first (CSPF) routing algorithm, so as to calculate a transmission route according to a service requirement; using an RSVP-TE protocol to establish a label switched path (LSP) carrying a remaining validity time; based on the remaining validity time of the LSP, triggering a pre-re-routing strategy by comparing the remaining validity time with a remaining transmission time of the service and a preset time threshold, establishing a new LSP before an old LSP is interrupted after triggering, and switching the service transmission to the new LSP; and the preset time threshold is set to be greater than a longest time required for LSP calculation and establishment in a network. The application can solve the problems of diversified QoS requirements in a complex service scenario and service transmission interruption caused by predictable interruption of an inter-satellite link due to relative motion between satellites or a sun eclipse.

The invention discloses a secure transmission and access method for hydropower station data, which relates to the field of secure transmission and access of hydropower station data, and comprises the following steps: dynamically adding high, medium and low security level labels by analyzing the service type and the equipment control level of the hydropower station data; pre-selecting a corresponding transmission path for the hydropower station data according to the security level label; quality indexes are collected in real time, when it is monitored that any quality index of a transmission path is abnormal, after a path quality degradation event is generated, priority ranking and screening are conducted on standby paths, and data flow switching is executed through the multi-protocol label switching technology; by establishing a user access frequency baseline, monitoring the access behavior of the user to high-security-level data in real time, and dynamically implementing access permission degradation or additional authentication requirements, the real-time requirement of hydropower station data transmission and the dynamic risk management of access control are realized, and the real-time performance of the whole process of hydropower station data is effectively improved.

According to the transmission method, labels to be used at the failure occurrence are previously and individually set to links in respective directions among all nodes on the one directional link connecting between adjacent nodes basis, and when a failure occurs, a failure notifying message is sent out onto a same directional ring from a termination node of a failed block, to be sequentially transferred to each downstream node, and a label table for connecting the links in cooperative with the reception of the failure notifying message is created in each node, and also, a bypassing path is formed by turning back the rings at both end nodes of the failed block. Thus, in a ring network of label switching system, it becomes possible to easily perform the label table management and also to set a bypassing path in a short time at the failure occurrence.

The technical scheme of the invention discloses a method capable of enhancing data locality of a ray packet and a sampling point in a neural rendering process. The invention provides two key scheduling mechanisms, namely an RP reordering method based on voxel tags and a sampling point out-of-order transmitting method based on an on-chip feature cache hit condition, and designs a matched hardware architecture module. By means of the RP reordering method based on the voxel labels, the number of RP processed by unit voxel label switching can be increased, RP-level data aggregation processing is achieved, repeated loading of the same voxel data is reduced, and the cache hit rate is increased. According to the sampling point out-of-order emission method based on the on-chip feature cache hit condition, out-of-order scheduling can be achieved, EMA delay is hidden, and the throughput rate is increased to 8.45%.

The invention relates to an automatic test method for a data plane of a park network flow authorization label system, and the method is realized through an automatic test system, and the automatic test system comprises a park network flow authorization label switch, an SDN controller, an automatic test host, and access terminal equipment. The privilege interface is connected with the automatic test host and the park network flow authorization label switch; comprising the steps that a park network flow authorization label switch is connected with an access terminal device through a service port, processes normal service flow, is connected with an SDN controller through an openflow protocol, receives a flow table rule and a control instruction issued by the SDN controller, is connected with an automatic test host through a privileged interface, receives test flow and returns a response. The method is suitable for testing basic functions of the data plane of the park network flow authorization system, and an economical and efficient method is provided for testing the data plane of the park network flow authorization label system.

Mobile User Plane (MUP) over Multi -Protocol Label Switching (MPLS) is implemented over an access an access network connecting a provider edge router to a gateway router, the gateway router being connected to a base station having a wireless connection to user equipment (UE). Traffic between the provider edge router and the gateway router is routed according to both of multi -protocol label switching (MPLS) protocol and mobile user plane (MUP) protocol. An MUP-controller may discover the UE, base station, and corresponding tunnel information and transmit this information to the provider edge router and gateway router, which then create an MPLS label and routing entries to implement MUP.

Aspects of the disclosure are directed to a geo-positional, dynamic label switch routing protocol for routing data packets in a network. The protocol incorporates real-time geo-positional data with multi-protocol label switching (MPLS) to enable devices in the network to be responsive to location and timing of other devices in the network when routing data packets. As a data packet traverses from origin to destination, the network devices can encapsulate the data packet with a shim header that carries label information associated with which network device can relay the next data flow based on continually or periodically received geo-position and time feeds.

This invention relates to the field of data analysis technology, specifically to a method and system for analyzing enterprise equity data under a SaaS platform. It involves aggregating equity source data, extracting normalized business features, generating a source list through weighted sorting, and constructing an equity symbol sequence. Finally, it identifies label switching transitions within the observation period to complete enterprise equity analysis. This invention constructs a multi-dimensional feature system including asset injection scale and user interaction frequency. It utilizes principal component analysis and nonlinear mapping algorithms to accurately calculate the dominance probability scores of each business attribute. Based on the dominant business attributes, it constructs a contribution vector to accurately locate high-value business sources. Furthermore, it maps discrete numerical changes into an intuitive fluctuation symbol sequence. By scanning the transition events generated by label direction switching within the observation period, it calculates the transition compactness index to quantitatively assess the fluctuation frequency and distribution density of equity data, thereby effectively capturing abnormal oscillation trends hidden in time-series data.

A method performed by a first node for handling a packet is provided. The first node operates in a computer system. The first node receives (201) a packet from a second node operating in the computer system. The packet comprises a set of Multi Protocol Label Switching, MPLS, Network Action, MNA, formatted Network Action Sub-Stack, NAS, elements specific to deterministic networks. The respective element in the set of NAS elements have a format comprising a Network Action Indicator, NAI associated with any one out of a flow identifier, a latency class or a sequence number.

A method for establishing a temporal label switched path (T-LSP) implemented in a node in a network. The method includes receiving a path request including a time interval and a set of constraints; obtaining traffic engineering information from a first database; computing, by the node, a path satisfying the time interval and the set of constraints based on the traffic engineering information obtained; storing the time interval and the set of constraints in a second database; and instructing an ingress node of the temporal LSP to signal the temporal LSP in the network along the path computed at a start of the time interval identified in the path request and to tear down the temporal LSP at an end of the time interval identified in the path request.

The invention relates to a method for processing data in at least one network implementing label switching routing, comprising obtaining (11) at least one data packet comprising: - N label stacks, where N is an integer greater than or equal to 2, and - at least one entry of at least one current label stack, including the first label stack, carries at least one additional stack indicator signalling at least one next label stack.

The label allocation method, operator edge device, routing switching node device, and storage medium provided in this application embodiment include: a first PE device allocating a first downstream allocation label and a first upstream allocation label to a second PE device, determining a first inbound label table for uplink and a first outbound label table for downlink of BUM packets, and transmitting the two allocated labels to an SPE device; the SPE device allocating a second downstream allocation label to the first downstream allocation label and a second upstream allocation label to the first upstream allocation label, determining a label switching table, and transmitting the two allocated labels to the second PE device; the second PE device determining a second outbound label table for uplink and a second inbound label table for downlink of BUM packets, and setting the packet forwarding mode of its corresponding second upstream allocation label to discard in the second inbound label table. Therefore, this application embodiment solves the limitations existing in conventional technologies.

The invention provides a method and equipment for adding an IPv6 (Internet Protocol Version 6) subnet virtual local area network label. In the method, a switching chip copies a first Ethernet message based on a link local address prefix table entry, sends the first Ethernet message to a processor, and caches the first Ethernet message; the processor generates a first link address software table item if a matched table item is not searched in a software ACL (Access Control List) based on the first link local address of the copied first Ethernet message; synchronizing the first link address software table entry into a first link address hardware table entry of a hardware ACL (Access Control List), wherein the priority of the first link address hardware table entry is higher than that of a link local address prefix table entry; in the first link address software table item, a matching item is a receiving port of the first Ethernet message, a two-layer header does not carry a VLAN label, and a source IP address of a three-layer header is a first link local address; the action item is to add a first VLAN label; and the switching chip adds a first subnet VLAN label to the first Ethernet message based on the first link address hardware table item.

A method of operating a network device is provided that includes receiving a message, determining whether the message is associated with a known label-switched path (LSP), enqueuing the message in a first queue on the network device in response to determining that the message is associated with a known label-switched path, and enqueuing the message in a second queue, different than the first queue, on the network device subsequent to determining that the message is associated with an unknown label-switched path. The method can further include determining whether there are any messages associated with a known label-switched path enqueued in the first queue and continuously processing messages associated with the known label-switched path before either a message is dequeued from the second queue or the program yields to allow other pending workloads or processes to run.

A system and method are provided for using a green score to improve environmental sustainability for routing traffic between and or / within autonomous systems (ASs). Node-level green scores are calculated based on environmental information of the nodes (e.g., locations, router type and electrical consumption, and location-dependent environmental impact of electrical production), and AS-level green scores are based on the node-level green score from the respective ASs. For intra-AS routing, node and adjacency labels are pushed to a headend path computation element client (PCC), and the label switched path (LSP) is determined based on the node-level green scores and the node and adjacency labels. For inter-AS routing, the AS having a better AS-level green score is preferred, when the routes through the respective ASs are equal-cost multi-path (ECMP) routes. Exit nodes between ASs are selected based on the node-level green scores.

Aspects of the subject disclosure may include, for example, receiving, at a router forming an ingress router in a point-to-multipoint network, a point-to-multipoint dataflow comprising a plurality of packets, forwarding, to a data network, packets of the point-to-multipoint dataflow for communication to a plurality of point-to-multipoint receivers along respective Label Switched Paths, the plurality of point-to-multipoint receivers associated with one or more egress nodes of the point-to-multipoint network, identifying a network failure between the router and a nexthop router for one Label Switched Path, and routing packets of the point-to-multipoint dataflow according to a preexisting unicast backup Label Switched Path for the one Label Switched Path. Other embodiments are disclosed.

The invention provides a method and equipment for expanding MPLS L3VPN (Multi-Protocol Label Switching L3VPN) public network label resources. The method comprises the following steps of: distributing a public network label for a published local host route by an egress PE (Provider Edge) device; the Egress PE device sets a first label matching table item which pops up a public network label and enters the public network label matching table in a multi-protocol label switching (MPLS) public network label matching table; the Egress PE device allocates a private network label to a virtual private network route issued by a local customer edge CE device; and the Egress PE device configures and pops up a private network label in the MPLS public network label matching table and matches a second label matching table item forwarded by the virtual private network route.

A route advertisement method includes advertising, by a first network device, an Internet Protocol (IP) prefix route to a second network device, where the IP Prefix route includes a gateway (GW) IP address and a Multi-Protocol Label Switching (MPLS) label. The GW IP address is an IP address of a first interface of the first network device. The MPLS Label is a label of a first IP-virtual routing and forwarding (IP-VRF) instance of the first network device. The first network device advertises a media access control (MAC) / IP route to the second network device, where the MAC / IP route includes the IP address of the first interface and a MAC address of the first interface.