Topology collection method and device
A topology and port technology, applied in the field of network communication, can solve problems such as not meeting the QoS requirements of data flow and affecting data flow forwarding, so as to reduce message interaction and improve overall efficiency
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[0028] In SDN, topology collection packets (such as LLDP packets) are actively sent by the SDN controller to each switching device controlled and managed by the SDN controller, so as to be used by the SDN controller for link discovery and topology calculation.
[0029] In this application, the topology collection message (such as the LLDP message) is actively sent by the switching device. text), which reduces the message interaction between the SDN controller and the switching device, and improves the efficiency of network topology collection. pass below figure 1 Describe the method provided by this application:
[0030] see figure 1 , figure 1 It is a flow chart of a topology collection method provided in this application. This process is applied to a switching device (referred to as the first switching device). Here, the first switching device generally refers to any switching device in the SDN, which is just named for the convenience of distinguishing the switching dev...
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