Patent ID: 11916739
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. A method for detecting incorrect cabling of adapters in a VLAN cluster including one or more network devices, the method comprising:
receiving, from network devices of the VLAN cluster, a Link Layer Discovery Protocol (LLDP) packet;
parsing, from the received LLDP packets, MAC addresses of the network devices;
grouping adapters of the network devices by subnet and VLAN to identify adapters that are capable of transmitting and receiving data from one another;
for each host in the VLAN cluster, grouping MAC addresses for the adapters by subnet and VLAN;
for each MAC address, identifying subnet/VLAN pairs;
identifying adapters that report a MAC address for a subnet that is in a minority of the subnet/VLAN pairs for a given MAC address; and
reporting the identified adapters as being incorrectly coupled, wherein an adapter reporting a MAC address associated with a majority of adapters in a given subnet/VLAN pair is statused as correctly coupled.