This paper comes from the management needs of optical network equipment. Large-scale optical networks require efficient network management software for management. The automatic discovery of network equipment is the key to implement the intelligent network management system and is the basis of the network management software. The traditional automatic discovery method for network devices is mainly based on the ICMP protocol. When ping the IP address on the network one by one, the detection period is too long and the network load is too heavy, so it is not suitable for real-time device discovery. This paper proposes an automatic discovery method based on MDNS protocol. This paper proves that this method can greatly shorten the automatic discovery time of communication equipment and IP services.
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