This note describes the Explicit Congestion Notification (ECN)-nonce, an optional addition to ECN that protects against accidental or malicious concealment of marked packets from the TCP sender. It improves the robustness of congestion control by preventing receivers from exploiting ECN to gain an unfair share of network bandwidth. The ECN-nonce uses the two ECN-Capable Transport (ECT)codepoint...

There is now an increased understanding of how to engineer end-system based flow controls that offer low-loss and low-delay to all packets even when congestion is present. These new controls use explicit congestion notification and are part of a framework that adds flexibility to the resource allocation policies that can be expressed at end-systems. Altering a well-proven protocol suite such as...

The paper discusses Explicit Congestion Notification (ECN) in the context of the commercial Internet. It presents possible threats to ECN and shows the gain malicious ECN sources could achieve from ECN subverting. Besides, the paper analyses the relationships between ECN and Service Level Agreements (SLAs).

The Internet is established on the best-effort service model. The Transmission Control Protocol employed in the current Internet has both fairness and efficiency issues. Pricing scheme has been proposed to address the fairness issue and prevent aggressive users occupying excessive network resource. Random early detection (RED) for the incipient congestion in routers, together with explicit cong...

Quantized Congestion Notification (QCN), discussed in IEEE 802.1Qau, is one of the promising layer 2 congestion control methods for data center networks. Data center network fundamentally has symmetric structure and links are designed to have high link utilizations. So, data center flows probably pass through multiple bottleneck links. QCN reduces its transmission rate with each congestion noti...

It has been found recently that feedback in an ATM network is useful in the long run to alleviate congestion. This general conclusion, although theoretically important, does not address the practical concern aa to how the network behaves when it is adjusting itself in short to medium range. The work reported in this paper is motivated by this practical concern. A new feedback based dynamic traf...

In this paper we propose an analytical model for managing non-cooperative or mis-behaving flows in the Internet by manipulating congestion penalties conveyed to them. We show that a penalty transformation derived from the Duality formulation of Utility Maximization problem can map a user’s utility function, , to any objective utility function, . These penalty transformation modules can be compl...

Transport protocol design for supporting multimedia streaming in mobile ad hoc networks is challenging because of unique issues, including mobility-induced disconnection, reconnection, and high out-of-order delivery ratios; channel errors and network congestion. In this paper, we describe the design and implementation of a transmission control protocol (TCP)-friendly transport protocol for ad h...

This paper evaluates the suitability of Backward Explicit Congestion Notification (BECN) for IP networks. The BECN mechanism has previously been used in non-IP networks, but there has been limited experimental investigation into the application of the BECN scheme as congestion control mechanism in IP networks. In this paper, we consider an enhanced algorithm for BECN which uses Internet Control...

Congestion control on the Internet has been a challenge issue so far. Since there is no one-size-fits-all scheme for TCP congestion control, many various schemes have developed to suit different kinds of communication environments. Among them, ECN (Explicit Notification) one which able feed state in routers along connection path back transmitter. To promote deployment and provide concrete refer...