Title
Carpe Elephants: Seize the Global Heavy Hitters
Abstract
Detecting "heavy hitter" flows is the core of many network security applications. While past work shows how to measure heavy hitters on a single switch, network operators often need to identify network-wide heavy hitters on a small timescale to react quickly to distributed attacks. Detecting network-wide heavy hitters efficiently requires striking a careful balance between the memory and processing resources required on each switch and the network-wide coordination protocol. We present Carpe, a distributed system for detecting network-wide heavy hitters with high accuracy under communication and state constraints. Our solution combines probabilistic counting techniques on the switches with probabilistic reporting to a central coordinator. Based on these reports, the coordinator adapts the reporting threshold and probability at each switch to the spatial locality of the flows. Simulations using traffic traces show that our prototype can detect network-wide heavy hitters with 97% accuracy, while reducing the communication overhead by 17% and switch state by 38%, compared to existing approaches.
Year
DOI
Venue
2020
10.1145/3405669.3405820
SIGCOMM '20: Annual conference of the ACM Special Interest Group on Data Communication on the applications, technologies, architectures, and protocols for computer communication Virtual Event USA August, 2020
DocType
ISBN
Citations 
Conference
978-1-4503-8041-6
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Rob Harrison11188.62
Shir Landau Feibish2375.78
Arpit Gupta330319.25
Ross Teixeira421.37
S. Muthukrishnan58025734.98
Jennifer Rexford6143781195.34