US 12,483,861 B2
Lightweight path maximum transmission unit for wireless multicast overlay
Amine Choukir, Lusanne (CH); Domenico Ficara, Essertines-sur-Yverdon (CH); Pascal Thubert, Roquefort-les-Pins (FR); Jerome Henry, Pittsboro, NC (US); Ashish Kumar, San Jose, CA (US); Yi Xu, Dublin, CA (US); and Araz Yagubov, Ecublens (CH)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,572.
Claims priority of provisional application 63/236,983, filed on Aug. 25, 2021.
Prior Publication US 2023/0065679 A1, Mar. 2, 2023
Int. Cl. H04W 4/06 (2009.01); H04L 45/741 (2022.01)
CPC H04W 4/06 (2013.01) [H04L 45/741 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
detecting that an IPv4 multicast packet is to be transmitted from a wireless local area network controller to a plurality of wireless access points;
setting a maximum transmission unit (MTU) size of the IPv4 multicast packet by embedding the IPv4 multicast packet in an IPv6 multicast packet including embedding a destination address of the IPv4 multicast packet in a Group ID field of an address of the IPv6 multicast packet;
transmitting the IPv6 multicast packet to the plurality of wireless access points;
extracting the IPv4 multicast packet from the IPv6 multicast packet; and
transmitting the IPv4 multicast packet from the plurality of wireless access points as client data traffic.