Patent ID: 9331872
Filing Date: 2016-05-03
CPC Classification: H04L,H04W

Claim Text:
1. A method, comprising: receiving, at a virtual switch, a list of source identifiers from a supervisory device, the virtual switch receiving the list of source identifiers only if the virtual switch hosts a private virtual local area network (PVLAN) promiscuous port in that particular PVLAN, wherein: maintaining, at the virtual switch, a list of source identifiers that are allowed to send packets through the virtual switch to ports in the PVLAN, wherein the source identifiers on the maintained list indicate source devices that are allowed to send packets through the virtual switch to the ports in the PVLAN; receiving a packet at the virtual switch from a particular source destined for a particular port in the PVLAN; determining whether a particular identifier associated with the particular source matches one of the source identifiers in the list; and preventing the packet from being forwarded to the particular port in the PVLAN when the particular identifier is not in the list.