US 11,916,739 B2
Mitigation of physical network misconfigurations for clustered nodes
Daniel Frederick Cuomo, Jr., Woodinville, WA (US); and Travis Luke, Camas, WA (US)
Assigned to MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US)
Filed by MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US)
Filed on Dec. 17, 2020, as Appl. No. 17/125,965.
Prior Publication US 2022/0200860 A1, Jun. 23, 2022
Int. Cl. H04L 41/0866 (2022.01); H04L 12/46 (2006.01)
CPC H04L 41/0866 (2013.01) [H04L 12/4641 (2013.01)] 17 Claims
OG exemplary drawing
 
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.