RFC 3714:IAB Concerns Regarding Congestion Control...
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congestion control


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... deployment to continue. This document expresses our concern over the lack of effective end-to-end congestion control for this best-effort voice traffic ...
... developing countries, where core links are more likely to be congested, making congestion control an especially important topic for developing countries. ...
... traffic that does not practice end-to-end congestion control. This document raises some concerns about fairness, user quality, and the danger of ...
... traffic requires end-to-end congestion control [RFC2914]. Because audio ...
... traffic doesn't require end-to-end congestion control. Thus, while the concerns in this document are general, the document focuses on the particular issue of best-effort audio ...


... congestion collapse: call rejection during busy periods, or the use of end-to- end congestion control. Because there are currently no acceptance/rejection mechanisms for best-effort traffic in the ...
... Internet, the only alternative is the use of end-to-end congestion control. This is important even if end-to-end congestion control is ...
... end-to-end congestion control. This is important even if end-to-end congestion control is invoked only in those very rare scenarios with congestion in ...


... capacity access links, and to the use of end-to-end congestion control in TCP. Most of the traffic on the Internet ...
... [RFC896], and the fix was provided by Van Jacobson, who developed the congestion control mechanisms that are now required in TCP implementations [Jacobson88 ...
... flow uses end-to-end congestion control, and has a codec that can adapt the bit rate ...
... traffic to congestion works best by taking into account the congestion control response of TCP, as is discussed in the next subsection. ...
... traffic should be exempt from end-to-end congestion control due to any claims of inherently more valuable content. (One could equally logically argue that because email ...
... traffic to be exempt from end-to-end congestion control. ...


... IETF to address issues of congestion control for real time traffic: an upgrade of the RTP specification, TFRC ...
... RTP Profile for Audio and Video Control, does not discuss congestion control [RFC1890]. The revised document on "RTP Profile ...
... Audio and Video Conferences with Minimal Control" [RFC3551] discusses congestion control in Section 2. [RFC3551] says the following: ...
... flow is achieving. This condition can be satisfied by implementing congestion control mechanisms to adapt the transmission rate (or the number of layers subscribed for a layered multicast session ...
... As mentioned in RFC 3267prop(-> 4867prop), equation-based congestion control is one of the possibilities for VoIP. TCP ...
... TCP Friendly Rate Control (TFRC) is the equation-based congestion control mechanism that has been standardized in the IETF. The TFRC ...
... packet rate in response to congestion. The congestion control mechanism in this document cannot be used by those applications; TFRC-PS ...
... The Datagram Congestion Control Protocol (DCCP) is a transport protocol being standardized in the IETF ...
... unreliable flows, with the application being able to specify either TCP-like or TFRC congestion control [DCCP03]. ...
... DCCP currently has two Congestion Control IDentifiers or CCIDs; these ...
... CCID 2 for TCP-like congestion control and CCID 3 for TFRC congestion control. As TFRC-PS becomes available and goes through ...
... CCID 4, for use with TFRC-PS congestion control. ...
... RTP payload format specified in RFC 3267prop(-> 4867prop) use congestion control, though no specific mechanism is recommended. RFC 3267prop(-> 4867prop) gives "Equation-Based Congestion Control ...
... congestion control, though no specific mechanism is recommended. RFC 3267prop(-> 4867prop) gives "Equation-Based Congestion Control for Unicast Applications" as an example of a congestion control ...
... Congestion Control for Unicast Applications" as an example of a congestion control mechanism suitable for real-time flows ...


... hard to achieve. We would not want to delay the deployment of congestion control for telephony traffic until such an ideal could be accomplished. In addition, we note that the current TCP ...
... traffic until such an ideal could be accomplished. In addition, we note that the current TCP congestion control mechanisms are themselves not very effective in an environment where there is a limitation along the reverse path in pps. While the TCP ...
... data packets, TCP does not include any effective congestion control mechanisms for the stream of small acknowledgement packets on the ...
... end-to-end path has changed. This issue has been addressed in a proposal for Probabilistic Congestion Control [PCC]. ...


... IETF community, as a specific follow-up to RFC 2914 on Congestion Control Principles. This is not a specific or complete protocol specification ...


... Deepak Bansal, Hari Balakrishnan, Sally Floyd, and Scott Shenker, Dynamic Behavior of Slowly-Responsive Congestion Control Algorithms, SIGCOMM 2001. ...
... Eddie Kohler, Mark Handley, Sally Floyd, and Jitendra Padhye, Datagram Congestion Control Protocol (DCCP), internet-draft Work in Progress ...
... S. Floyd, M. Handley, J. Padhye, J. Widmer, "Equation- Based Congestion Control for Unicast Applications", ACM SIGCOMM 2000. ...
... Web page on "Measurement Studies of End-to-End Congestion Control in the Internet", URL "http://www.icir.org/floyd/ccmeasure.html ...
... Joerg Widmer, Martin Mauve, and Jan Peter Damm. Probabilistic Congestion Control for Non-Adaptable Flows. Technical Report 3/2001, Department of Mathematics and Computer Science, University of Mannheim. URL ...
... Nagle, J., "Congestion Control in IP/TCP", RFC 896, January 1984. ...
... Allman, M., Paxson, V. and W. Stevens, "TCP Congestion Control", RFC 2581prop, April 1999. ...
... Floyd, S., "Congestion Control Principles", BCP 41, RFC 2914, September 2000. ...



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