Method and device for constructing switched network spanning tree
A switching network and construction technology, applied in the direction of data switching network, digital transmission system, electrical components, etc., can solve problems such as limited CPU and memory performance of network equipment, high requirements for CPU and memory performance, and affecting network deployment capabilities. , to speed up convergence, improve deployment capabilities, and reduce requirements
Active Publication Date: 2011-06-29
NEW H3C TECH CO LTD
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Problems solved by technology
As can be seen from the above introduction to the RSTP protocol, the existing method for constructing a spanning tree needs to run multiple RSTP instances on each network device, which requires high CPU and memory performance of the network device; however, the network device CPU And the memory performance is very limited, so it will affect the network deployment ability of the network
Moreover, because each network device needs to exchange RSTP packets, this makes the network convergence slow
Method used
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The invention discloses a method and a device for constructing a switched network spanning tree. The method comprises that: a controller receives topological information and physical state information from each region bridge by a control channel, performs rapid spanning tree protocol (RSTP) calculation according to the information, and transmits calculation results to each region bridge by the control channel, wherein the region bridge is incapable of performing RSTP calculation. By the method and the device, the network deployment capability can be improved, and the rate of convergence is increased.
Description
Method and device for constructing switching network spanning tree technical field The invention relates to the technical field of Rapid Spanning Tree Protocol (RSTP, Rapid Spanning Tree Protocol), in particular to a method and a device for constructing a switching network spanning tree. Background technique The main application of the RSTP protocol is to avoid network loops in the LAN and solve the broadcast storm problem of the ring network. The RSTP protocol defines concepts such as Root Bridge (RootBridge), Root Port (RootPort), Designated Port (DesignatedPort), Optional Port (AlternatePort), Backup Port (BackupPort), and Path Cost (PathCost). (that is, the devices in the network) are constructed into a spanning tree, so as to achieve the purpose of cutting redundant loops. To realize these functions, the bridges must exchange some information and send RSTP messages to each other. The following briefly introduces the working process of the RSTP protocol. First, th...
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IPC IPC(8): H04L12/56H04L29/06H04L12/753
Inventor 周万
Owner NEW H3C TECH CO LTD