DPF: fast, flexible message demultiplexing using dynamic code generation
Conference proceedings on Applications, technologies, architectures, and protocols for computer communications
BPF+: exploiting global data-flow optimization in a generalized packet filter architecture
Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Proceedings of the seventeenth ACM symposium on Operating systems principles
mmdump: a tool for monitoring internet multimedia traffic
ACM SIGCOMM Computer Communication Review
Survey on QoS Management of VoIP
ICCNMC '03 Proceedings of the 2003 International Conference on Computer Networks and Mobile Computing
Voice-Quality Monitoring and Control for VoIP
IEEE Internet Computing
FFPF: fairly fast packet filters
OSDI'04 Proceedings of the 6th conference on Symposium on Opearting Systems Design & Implementation - Volume 6
The BSD packet filter: a new architecture for user-level packet capture
USENIX'93 Proceedings of the USENIX Winter 1993 Conference Proceedings on USENIX Winter 1993 Conference Proceedings
High-Speed Dynamic Packet Filtering
Journal of Network and Systems Management
Perceptual QoS assessment technologies for VoIP
IEEE Communications Magazine
SIPFIX: a scheme for distributed SIP monitoring
IM'09 Proceedings of the 11th IFIP/IEEE international conference on Symposium on Integrated Network Management
High speed network traffic analysis with commodity multi-core systems
IMC '10 Proceedings of the 10th ACM SIGCOMM conference on Internet measurement
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The use of the Internet as a medium for real-time communications has grown significantly over the past few years. However, the best-effort model of this network is not particularly well-suited to the demands of users who are familiar with the reliability, quality and security of the Public Switched Telephone Network. If the growth is to continue, monitoring and real time analysis of communication data will be needed in order to ensure good call quality, and should degradation occur, to take corrective action. Writing this type of monitoring application is difficult and time consuming: VoIP traffic not only tends to use dynamic ports, but its real-time nature, along with the fact that its packets tend to be small, impose non-trivial performance requirements. In this paper we present RTC-Mon, the Real-Time Communications Monitoring framework, which provides an extensible platform for the quick development of high-speed, real-time monitoring applications. While the focus is on VoIP traffic, the framework is general and is capable of monitoring any type of real-time communications traffic. We present testbed performance results for the various components of RTC-Mon, showing that it can monitor a large number of concurrent flows without losing packets. In addition, we implemented a proof-of-concept application that can not only track statistics about a large number of calls and their users, but that consists of only 800 lines of code, showing that the framework is efficient and that it also significantly reduces development time.