Publication Type:

Journal Article


IEEE Internet Computing, Volume 13, Number 6, p.22-30 (2009)



attack packet, concurrent service, Denial of Service, Denial-of-service attack, DoS Attack, ICiH, indirect contention-in-host, indirect contention-in-hosts, Internet telephony, IP networks, IPTV, metrics, Multimedia, multimedia communication, Network security, operation-trace analysis method, Protocol stack, QoS, Quality of service, real-time media, real-time media service delivery, resource contention, RTMS QoS, telecommunication congestion control, telecommunication security, transport protocols, unwanted traffic, voice-over-IP, VoIP


Quality of service (QoS) is critical for delivering real-time media services (RTMSs). The authors identify a new class of denial-of-service attacks against RTMSs - indirect contention-in-hosts (ICiH). Here, attackers attempt to indirectly degrade RTMS QoS by directing packets at other concurrent services, thereby inducing resource contention between RTMS packets and attack packets in the protocol stack. To analyze such attacks, the authors' operation-trace analysis method formalizes the notion of contention among concurrent services and develops several metrics to quantify ICiH's effects.

Cite this Research Publication

Jayaraj Poroor and Jayaraman, B., “DoS Attacks on Real-Time Media through Indirect Contention-in-Hosts”, IEEE Internet Computing, vol. 13, pp. 22-30, 2009.