MULTICAST FRAME TRANSMISSION IN WIRELESS LOCAL AREA NETWORK

Organization Name

HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor(s)

MULTICAST FRAME TRANSMISSION IN WIRELESS LOCAL AREA NETWORK

This abstract first appeared for US patent application 18498291 titled 'MULTICAST FRAME TRANSMISSION IN WIRELESS LOCAL AREA NETWORK

Original Abstract Submitted

In implementations of the present disclosure, there is provided an approach for transmitting multicast frames. A method comprises obtaining a multicast frame in a wireless local area network (WLAN), where the WLAN includes a plurality of sub-networks with a same service set identifier (SSID). Then, a target sub-network of the plurality of sub-networks for receiving the multicast frame is determined based on the multicast frame and a unique group temporal key (GTK) for the target sub-network is obtained based on the target sub-network. Next, the multicast frame is encrypted using the obtained unique GTK for the target sub-network, and the encrypted multicast frame is transmitted to one or more client devices in the target sub-network. Implementations of the present disclosure can help the AP to reduce leakage of multicast frames to all client device by using the GTK corresponding the target sub-network.