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

Claim 0:
1. A method for detecting misconfigurations in a virtualized local area network (VLAN) cluster in a computing environment, the method comprising:
receiving, from a network device of the cluster, a Link Layer Discovery Protocol (LLDP) packet for each network interface of the network device;
parsing, from each received LLDP packet, data identifying VLANs available on each network interface;
comparing the identified VLANs available on each network interface;
based on the comparing of the identified VLANs, identifying inconsistently configured VLANs between the network interfaces;
comparing the identified VLANs with VLANs in use by applications on hosts in the cluster by:
identifying VLANs in use by applications on a first host and verifying that no other host in the cluster has reported that one of the identified VLANs is missing; and
repeating the verifying for each node in the cluster;

for each host in the cluster, based on the comparing of the identified VLANs and the inconsistently configured VLANs, marking a VLAN as misconfigured if other hosts in the cluster have reported the VLAN as missing; and
generating a notification indicating the misconfigured VLANs.