Title
Multipoint Passive Monitoring in Packet Networks
Abstract
Traffic monitoring is essential to manage large networks and validate Service Level Agreements. Passive monitoring is particularly valuable to promptly identify transient fault episodes and react in a timely manner. This article proposes a novel, non-invasive and flexible method to passively monitor large backbone networks. By using only packet counters, commonly available on existing hardware, we can accurately measure packet losses, in different segments of the network, affecting only specific flows. We can monitor not only end-to-end flows, but any generic flow with packets following several different paths in the network (multipoint flows). We also sketch a possible extension of the method to measure average one-way delay for multipoint flows, provided that the measurement points are synchronized. Through various experiments we show that the method is effective and enables easy zooming in on the cause of packet losses. Moreover, the method can scale to very large networks with a very low overhead on the data plane and the management plane.
Year
DOI
Venue
2019
10.1109/TNET.2019.2950157
IEEE/ACM Transactions on Networking
Keywords
Field
DocType
Passive network monitoring,alternate marking,multipoint flows
Passive monitoring,Computer science,Network packet,Computer network
Journal
Volume
Issue
ISSN
27
6
1063-6692
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Mauro Cociglio100.34
Giuseppe Fioccola200.34
Guido Marchetto38620.64
Amedeo Sapio4364.54
Riccardo Sisto555656.79