74 results about "Convergence (routing)" patented technology

The invention belongs to the technical field of artificial intelligence, and particularly relates to a network autonomous intelligent management and control method based on deep reinforcement learning. The method comprises the steps of firstly constructing a network topology, then introducing a CNN, an LSTM layer and a delay updating strategy to construct a routing decision-making model based on a DDPG reinforcement learning algorithm, and finally performing iterative training on the routing decision-making model based on deep reinforcement learning. In each iterative training, an intelligent agent obtains an output action, namely a group of link weights, according to a measured network state and a neural network, and calculates a service route by using a shortest path algorithm according to the link weights. According to a routing calculation result, the intelligent agent issues a flow table, and acquires end-to-end time delay and a packet loss probability of the service to calculate a reward value of the iteration. The algorithm has good convergence, and can effectively reduce the end-to-end delay and packet loss rate of the service.

The invention discloses a link switching method and a device thereof, which is applied to an MPLS(Multi-Protocol Label Switching) L2VPN system including a UPE (User-facing Provider Edge) and an NPE (Network Provider Edge). The method comprises the following steps: the NPE detects the connectivity of master and slave U-PWs (Pseudo Wires) and the connectivity of an N-PW; when the NPE detects U-PW faults, an MAC (Media Access Control) address clear command is sent through the N-PW in the VSI (Visual Switch Instance) of the U-PWs, so that the NPE which receives the MAC address clear command clears the corresponding MAC address in the VSI and associated with the N-PW which transmits the MAC address clear command; when the NPE detects N-PW faults, a flow rerouting command is sent through the U-PWs in the VSI of the N-PW, so that the UPE which receives the flow rerouting command carries out U-PW switch. By using the invention, the convergence speed of the UPE of the MPLS L2VPN can be accelerated.

The invention belongs to the technical field of cross-domain routing, and discloses a seamless credible cross-domain routing system of a heterogeneous convergence network and a control method thereof. The control method of the seamless credible cross-domain routing system of the heterogeneous convergence network comprises the following steps: evaluating the trust value of a network node through a trust calculation method and an incentive mechanism, and exciting the honesty behavior of the network node; issuing a intelligent contract for cross-domain routing, and determining a network state update process; designing an AR-DRL algorithm, wherein the algorithm is based on a block chain and a DDPG algorithm to obtain an optimal routing strategy, and seamless cross-domain routing is realized. According to the invention, automatic cross-domain routing is realized through an intelligent contract and a machine learning algorithm; the credibility of routing nodes is improved through an incentive mechanism and a consensus mechanism; according to the network state information provided by the operator in the registration process, the authenticity of the network state information in the routing process is evaluated remotely, counterfeiting and serial attack of the network operator can be resisted, and the authenticity and reliability of the routing information are ensured.

A method and apparatus are provided for determining a service interruption time measurement including routing protocol convergence time and Forwarding Information Base (FIB) insertion time, between network devices A and B in a network which has a routing protocol. A plurality of probe packets are then sent from the device A to the device B, each probe packet comprising a source address corresponding to the device A. A network route to the device A for the source IP address used by the probe packets is unknown to the network. A sequence number and sending time is typically assigned to each probe packet being sent. At a predetermined time, a route to the source address of the device A is injected into the routing protocol. Upon return to the device A of a first of the probe packets, an arrival time to is detected and an upper bound and a lower bound of the service interruption time measurement is calculated.

The invention relates to an RIP protocol optimization method suitable for on-satellite IP routing exchange, and belongs to the technical field of satellite communication. According to the invention, the satellite network RIP routing dynamic rapid learning based on the on-satellite IP routing exchange is realized through the design of interface network configuration information automatic sensing, on-satellite RIP message in-beam forwarding, RIP message format and routing algorithm optimization and the like. The method can be applied to satellite network scenes with on-satellite IP routing exchange and inter-satellite interconnection, and the problems that when a standard RIP routing protocol is applied to a satellite network, cross-satellite and cross-beam routing convergence is slow, and dynamic networking RIP routing learning in a single beam is difficult are solved.

The invention discloses a space-based networking routing method and equipment based on centralized and distributed combination. The method comprises the following steps that: a ground controller generates whole network topology prediction information in a period according to network information of a space-based network; the topology prediction information is analyzed by each space-based network node, and a link state notification containing full-period topology prediction information is generated; each space-based network node divides time periods according to the topology prediction information, so that the network topology in each time period is kept unchanged; each space-based network node selects a link state announcement of a time period to form a prediction topology, and a routing table is calculated; and each space-based network node detects the own link state in real time, compares the link state with the predicted topology, and triggers routing update under the condition that information is different. According to the space-based networking routing method disclosed by the invention, the prediction topology in each time period is kept unchanged, the network topology information can be quickly acquired at the starting moment of each time period, the routing convergence is effectively accelerated, the abnormal condition of the network can be sensed in real time, and the routing table item can be updated in time.