87 results about "Fat tree" patented technology

In a first embodiment of the present invention, a non-blocking switch fabric is provided comprising: a first set of intra-domain switches; a second set of intra-domain switches; a set of inter-domain switches located centrally between the first set of intra-domain switches and the second set of intra-domain switches, wherein each of the ports of each of the inter-domain switches is connected to an intra-domain switch from the first or second set of intra-domain switches.

The invention discloses a method and equipment for establishing a route table, belonging to the network communication field. The method is applied to a fat-tree topological network, and comprises the following steps: obtaining a connection relation between an equipment type of each equipment and each equipment in the fat-tree topological network; identifying uplink adjacent equipment and downlink adjacent equipment of target forwarding equipment according to the connection relation between the equipment type of each equipment and each equipment; generating an uplink route table item from the target forwarding equipment to the uplink adjacent equipment, and a downlink table route item from the target forwarding equipment to the downlink adjacent equipment; and constructing a route table of the target forwarding equipment formed by the uplink route table item and the downlink route table item. With the adoption of the method and the equipment, the number of the items of the equipment router table in the fat-tree topological network can be reduced, so that the convergence time is shortened.

The invention discloses a high-performance load balancing system based on a software defined network. The high-performance load balancing system mainly solves the problems of uneven load and link congestion in a network core layer of an existing data center. The system comprises a Fat-Tree underlying network and an SDN controller, and Fat-Tree bottom layer network is provided with a flow samplingdetection module, a DCTCP flow control module and a coding transmission module based on FEC, and the functions of sensing flow in real time, distinguishing mouse flow image flow, adjusting the flow rate of a port according to link time delay and adding a redundant packet to reduce mouse flow time delay are completed respectively. The SDN controller is additionally provided with a topology information module and an image flow scheduling module which are used for storing topology information of an underlying network and scheduling an image flow to a path with the minimum path cost. According tothe invention, retransmission delay caused by packet loss is reduced, the problem of blocking of the head and the tail of a mouse stream is solved, the image stream throughput is improved, and the method can be used for Fat-Tree data center network topology.

The embodiment of the invention provides a method and device for creating a multicast group in a fat-tree network and the fat-tree network. The method comprises the following steps: sending a join request to a management exchange node of a target multicast group according to a target multicast group address by a network node, wherein the join request is used for requesting the joining of the network node in the target multicast group, and the management exchange node of the target multicast group is a core exchange node belonging to the target multicast group address. The fat-tree network comprises a plurality of exchange nodes, wherein each core exchange node is arranged at the top layer and used for managing a plurality of multicast group addresses. According to the method, the core exchange node only needs to manage multicast groups distributed to the core exchange node, and when joining in the multicast groups, the network equipment only needs to send the join request to the corresponding core exchange node, so that the load shunting is realized and the influence of a single-point fault on the whole network is avoided; moreover, the join request is self-routed from the bottom layer to the top layer, the complexity is low, and the multicast efficiency of the whole network is improved.