7 results about "Ring protection" patented technology

The invention provides a preset circle protection method for a circle protocol in an intelligent computing center optical network and related equipment. The method comprises the following steps: determining a second light path set based on the difference between adjacent light paths in a first light path set; constructing a first preset circle according to a service corresponding circle protocol direction; determining that the first preset circle corresponds to each light path protection path in the second light path set; according to a difference value between the length of each light path in the second light path set and the length of the protection path, determining whether the first preset circle meets a preset condition or not; if yes, expanding the adjacent light paths along the ring protocol direction, and reconstructing a second preset ring; if the second preset circle does not meet the preset condition, the first preset circle is reserved, the first light path set is updated, the protected light path is removed, a third light path set is obtained, and a new preset circle is continuously constructed based on the third light path set to achieve ring protection. The embodiment of the invention efficiently utilizes network resources, dynamically adjusts a protection scheme, comprehensively guarantees the reliability and stability of an optical path, and improves the operation efficiency of an intelligent calculation center optical network.

The present application provides a packet forwarding method and apparatus, and an electronic device. In an embodiment, each node in a ring network enables a ring network protection function for a local ring network interface, such that when any node determines that an egress interface of a route to a destination node is a local ring network interface with the ring network protection function enabled, the route is taken as a primary route from the present node to the destination node, and a backup route for the primary route is determined (an egress interface of the backup route is a ring network interface on the present node with the ring network protection function enabled), and then, a packet can be forwarded on the basis of the primary route and the backup route. For example, after reception of a packet, if an ingress interface through which the packet was received is the same as a primary egress interface of the primary route, the packet is directly forwarded via a backup egress interface of the backup route, so as to avoid a packet forwarding loop caused when a node on the ring network, after receiving the packet, fails to successfully adjust the route in the event of an abnormality in the ring network, such as a node failure in the ring network or a link failure between any two nodes.

The invention discloses a detachable detection clamp for partial discharge electromagnetic coupling of power grid equipment, and aims to solve the problems that a conventional detachable detection clamp for partial discharge electromagnetic coupling of power grid equipment is difficult to adapt to detection requirements of cables of different specifications and is easily affected by external force to be damaged or shifted. The inner ring surfaces of a first shell and a second shell in the detachable detection clamp are both provided with protection assemblies for protecting an electromagnetic coupling ring, and one side of the first shell and one side of the second shell are both provided with fixing assemblies for assisting in fixing the electromagnetic coupling ring. The electromagnetic coupling ring is protected from physical damage through cooperation of the arranged protection assembly, the connecting plate, the first fixing plate and the second fixing plate, the first supporting plate and the second supporting plate are tightly attached to the electromagnetic coupling ring through the spring by releasing elastic force, vibration and impact borne by the electromagnetic coupling ring are buffered, and the fixing assembly is arranged, so that the electromagnetic coupling ring is prevented from being damaged. The position and the angle of the hoop are adjusted by using the gusset plate so as to adapt to cables with different sizes.

A method for controlling packet transmission at a PTN access node for an ITS communication network and an apparatus for the same are disclosed. A packet transmission control method according to an embodiment of the present invention may include: a step of classifying into a plurality of service classes including control traffic and video traffic based on the header and service identifier of a received frame; a step of receiving traffic event metadata including signal cycles, conflicting traffic events, and priority signal events from a control policy server; a step of generating scheduling parameters including time slot allocation parameters for a control traffic queue and weight adjustment parameters for a video traffic queue based on the metadata; a step of calculating a microburst indicator based on frame inflow characteristics in a short-time observation window, and determining the output order by performing queue management and scheduling control for a queue by service class according to the scheduling parameters and the microburst indicator; a step of transmitting by applying a predetermined transmission encapsulation according to a service identifier; and a step of maintaining an independent protection domain for each service and performing linear or ring protection switching only for the corresponding service when a threshold is exceeded based on an OAM performance indicator for each service.

The application relates to a method and system for realizing a service label adaptation of a ring service, and relates to the field of automatic protection switching of a PTN network, and comprises the following steps: after a service is bound to a ring network, the out label of a service channel is set as the in label of an upper ring node, and a ring label of the ring in which the upper ring node is located is added to the upper ring node; the ring label is forwarded through a ring channel in a middle node of the ring, and the ring label is popped out at a lower ring node. The application solves the problem that services with inconsistent service labels of upper ring nodes and lower ring nodes cannot be bound to a ring, expands the application scene of ring network protection, and greatly improves the engineering usability of the ring network protection function.

The invention discloses a circuit route sharing method and device, equipment and a computer storage medium, and the method comprises the steps: representing the basic information of a circuit through a circuit model, and obtaining first identification information; representing all information of the circuit routing segments through circuit routing segment serial numbers, circuit routing segment parallel numbers, group numbers in each circuit routing segment and path numbers in each group in the circuit routing model to obtain second identification information; finally, under the condition that the looped network exists in the circuit, representing the arrangement sequence of nodes in the looped network through a looped network protection model to obtain third identification information; and generating circuit route sharing information according to the first identification information, the second identification information and the third identification information. According to the technical scheme, the service whole-course routing information of the SPN / PTN is represented only through the three core models, the whole-course routing can be restored by an external system according to the provided three core table data, namely, the circuit routing information is shared, and the transmission circuit routing sharing process can be simplified.

The invention provides a message forwarding method and device and electronic equipment. In the embodiment of the invention, each node on the looped network starts a looped network protection function aiming at a local looped network interface, so that when any node determines that an outbound interface of a route to a destination node is the looped network interface of which the local looped network protection function is started, the route is used as a main route from the node to the destination node; and determining a standby route (an output interface of the standby route is a ring network interface of which the ring network protection function is opened on the node) of the main route, and then forwarding a message based on the main and standby routes, for example, if an input interface of the received message is the same as a main output interface of the main route after the message is received, the message is forwarded to the standby route; and if yes, directly forwarding the message through a standby output interface of the standby route so as to avoid a message forwarding loop caused by the fact that a node on the looped network does not successfully adjust the route after receiving the message when the looped network is abnormal, such as a fault of one node in the looped network or a fault of a link between any two nodes.