A Realtime Internet Protocol for Loss- and Delay-Sensitive Audio-Video Applications
This paper remarks on the challenges of supporting realtime traffic flows, notably loss-and delay-sensitive audio-video applications, in wide-area internet protocol (IP) networks. It also describes a relevant protocol with exceptional quality-of-service capabilities. A survey of related techniques, from simple “best-effort” to over provisioning, to now-popular prioritizations proposals (e.g., conventional use of IETF DiffServ), highlights deficiencies in each. The discussion leads to mention of time-based resource reservation methods, of which autonomous flow scheduling is shown to collectively excel in terms of network utilization, performance attributes, ease of deployment in existing internets and intranets, and the ability to provide an assured “network busy.” The protocol is described in detail, emphasizing means for dynamically establishing flows, and then distributed, and autonomous scheduling of the associated heterogeneous, critical applications. It provides zero packet loss and mini-mal-to-no congestion-based delay and jitter. Concluding comments briefly describe autonomous flow scheduling in relation to MPLS and the OSI seven-layer stack.
- Print ISSN
- 1545-0279
- Electronic ISSN
- 2160-2492
- Published
- 2007-01
- Content type
- Original Research
- DOI
- 10.5594/J16113