US 12,294,512 B2
Directed broadcast in network fabric
Kedar Sudhir Karmarkar, San Jose, CA (US); Shyamsundar N. Maniyar, San Jose, CA (US); and Sanjay Kumar Hooda, Pleasanton, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed on Feb. 15, 2022, as Appl. No. 17/672,278.
Application 17/672,278 is a continuation in part of application No. 16/897,110, filed on Jun. 9, 2020, granted, now 11,258,621.
Prior Publication US 2022/0173999 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/16 (2022.01); H04L 45/74 (2022.01)
CPC H04L 45/16 (2013.01) [H04L 45/74 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
by one or more computing devices:
receiving, at a fabric border node and from an external computing system, a packet comprising a header and a data set, wherein the packet is a directed broadcast;
extracting, at the fabric border node, a destination address from the packet;
determining that the fabric border node does not recognize the destination address;
based at least in part on the fabric border node not recognizing the destination address, transmitting, from the fabric border node and to a mapping computing device, a request to resolve the destination address;
receiving, at the fabric border node and from the mapping computing device, resolved address that maps to the destination address;
receiving, at the fabric border node and from one or more distribution computing devices, a request to receive transmissions associated with the packet;
modifying the resolved address based on the request to receive transmissions associated with the packet to result in a modified resolved address;
encapsulating the packet with the modified resolved address; and
transmitting the encapsulated packet to the one or more distribution computing devices having the modified resolved address.