US 12,425,355 B1
Routing network traffic in Clos fabrics
David Alonso Flamini, Dublin (IE); and Patricio Giecco, Upland, CA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Nov. 6, 2023, as Appl. No. 18/387,390.
Int. Cl. G06F 13/00 (2006.01); H04L 49/1515 (2022.01)
CPC H04L 49/1515 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method of routing network traffic in a multi-tiered Clos-based network, the method comprising:
receiving the network traffic in a first tier of the multi-tiered Clos-based network, wherein each tier of the multi-tiered Clos-based network includes network devices coupled to an adjacent tier;
splitting the network traffic as the network traffic is transmitted from the first tier to a higher-level tier in the multi-tiered Clos-based network;
monitoring how the network traffic is split as the network traffic is transmitted between the tiers in the multi-tiered Clos-based network;
calculating forwarding tables in each of the network devices based on how the network traffic is split; and
programming the forwarding tables in the network devices based on the calculation.