Title
Can WebRTC QoS Work? A DSCP Measurement Study
Abstract
DiffServ was designed to implement service provider quality of service (QoS) policies, where ingress and egress routers change the DiffServ Code Point (DSCP) in the IP header. However, nowadays, applications are beginning to directly set the DSCP themselves, in the hope that this will yield a more appropriate service for their respective video, audio and data streams. WebRTC is a prime example of such an application. As a first step towards understanding whether "WebRTC QoS works", we measured, for both IPv4 and IPv6, what happens to DSCP values along Internet paths. Our study is based on end-to-end measurements from 160 IPv4 and 65 IPv6 geographically spread controlled probe clients to 34 IPv4 and 18 IPv6 servers respectively. Clearly, when the DSCP value is changed, the net result may not be what the application desired. We find that this happens often, and conclude with recommendations on how to improve WebRTC and other applications using the DSCP.
Year
DOI
Venue
2018
10.1109/ITC30.2018.00034
2018 30th International Teletraffic Congress (ITC 30)
Keywords
Field
DocType
Measurement, Fling, DSCP, Ingress, Egress
IPv6,IPv4,Computer science,Server,Quality of service,Computer network,WebRTC,Service provider,IP header,Code point
Conference
Volume
ISBN
Citations 
01
978-1-5386-6002-7
2
PageRank 
References 
Authors
0.45
15
5
Name
Order
Citations
PageRank
Runa Barik1113.47
Michael Welzl2157.02
Ahmed Elmokashfi327623.88
Thomas Dreibholz4292.60
Stein Gjessing5118299.28