US 12,219,486 B2
Systems and methods for power saving in directed multicast service
Tak Ming Francis Pang, Palo Alto, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Oct. 28, 2020, as Appl. No. 17/082,543.
Application 17/082,543 is a continuation in part of application No. 16/171,765, filed on Oct. 26, 2018, granted, now 10,855,795.
Prior Publication US 2021/0045058 A1, Feb. 11, 2021
Int. Cl. H04L 12/18 (2006.01); H04W 4/06 (2009.01); H04W 52/02 (2009.01)
CPC H04W 52/0235 (2013.01) [H04W 4/06 (2013.01); H04L 12/189 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a proxy message from a client, wherein: the proxy message contains information instructing a network device to act as a proxy for the client, and the proxy message comprises a Directed Multicast Service (DMS) Traffic Specification/Transaction Class for Data Retention (TSPEC/TCLAS) message, and
the proxy message instructs the network device to respond to a query with a join message without notifying the client, and cache at least one of multicast traffic or a multicast network protocol message on behalf of the client;
receiving the multicast network protocol message from a source, wherein the multicast network protocol message is one of an Internet Group Management Protocol (IGMP) query, an IPV6 router advertisement message or discovery query, or a multicast Domain Name System (mDNS) query;
caching the multicast network protocol message according to the proxy message; and
inserting the cached multicast network protocol message into a part of queued traffic to the client for prioritization; and
transmitting the multicast network protocol message to the client according to a wake up schedule of the client.