9 results about "Resource Reservation Protocol" patented technology

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 invention relates to a cross-data-center RDMA flow control method and device, equipment, a storage medium and a program product. Comprising the following steps: in an initialization process, receiving a resource reservation protocol message of next-hop transmission equipment, and determining a cache space value reserved by the next-hop transmission equipment; in the transmission process of the RDMA data packet, receiving the current credit value transmitted by the next hop transmission equipment, and updating the maintained cache space value; determining whether to continue to execute the transmission task according to the updated cache space value; if yes, the corresponding data block is sent to the next-hop transmission device, the updated cache space value is updated again according to the size of the data block, and the maintained cache space value is obtained. By adopting the method, flow control based on credit is realized, data overflow and loss caused by insufficient cache space of next-hop transmission equipment can be avoided, and transmission guarantee of high throughput and zero packet loss is provided for RDMA flow.

In some implementations, a non-ingress node of one or more label-switched paths (LSPs) may identify a resource issue event. The non-ingress node may identify, based on identifying the resource issue event, one or more notification-requester stacks included in a data structure. The non-ingress node may generate one or more resource notification messages that each include a respective notification-requester stack of the one or more notification-requester stacks. The non-ingress node may send the one or more resource notification messages based on the one or more notification-requester stacks.

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.

An example system comprises a router configured to receive a bandwidth update associated with a change in bandwidth over a wireless channel, determine if the change in bandwidth identified in the bandwidth update results in bandwidth being over-reserved at at least one priority level, previously reserved bandwidth of the wireless channel being associated with a plurality of different priority levels, the previously reserved bandwidth being previously reserved based on a plurality of path requests from a head end router, each path request including at least one priority level and a bandwidth reservation request, if the change in bandwidth results in bandwidth being over-reserved, then preempt a lowest priority path request, based in the preemption of the lowest priority path request, update reserved bandwidth of the wireless channel of at least one priority level, and provide a message to the head end router regarding the change of bandwidth.

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 invention provides a message sending method and device and electronic equipment, and relates to the technical field of communication. In the application, firstly, when a current node determines that a resource reservation protocol (RSVP) message sent by an adjacent node of the current node in a main tunnel is not received, a target data sending tunnel capable of sending an RSVP removal message to a target adjacent node in the adjacent nodes is determined, then whether other nodes exist in the target data sending tunnel is determined, and if yes, the target data sending tunnel is determined to be the RSVP removal message. And if yes, determining whether to send an RSVP removal message to the target adjacent node based on the node types of the other nodes, and if not, sending the RSVP removal message to the target adjacent node. By adopting the mode, the main tunnel can be prevented from being dismounted by mistake under the scene that node protection and link protection are shared, and the service borne in the main tunnel can be effectively processed.

In some implementations, a non-ingress node of one or more label-switched paths (LSPs) may identify a resource issue event. The non-ingress node may identify, based on identifying the resource issue event, one or more notification-requester stacks included in a data structure. The non-ingress node may generate one or more resource notification messages that each include a respective notification-requester stack of the one or more notification-requester stacks. The non-ingress node may send the one or more resource notification messages based on the one or more notification-requester stacks.

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.