In a potentially congested network, random early detection (RED) active queue management (AQM) proved effective in improving throughput and average queuing delay. The main disadvantage of RED is its sensitive parameters that are impossible to estimate perfectly and adjust manually because of the dynamic nature of the network. For this reason, RED performs differently during different phases of ...

Random Early Detection (RED) was proposed as an active gateway queue-management mechanism. This paper proposes to alter the RED design guideline that unconditionally allows transient congestion, and evaluates its impacts. This unconditional allowance of transient congestion is shown to be harmful when the queue is near full, because it causes buffer overflow at a gateway. Buffer overflow at a g...

This paper describes a mechanism we call “SRED” (Stabilized Random Early Drop). Like RED (Random Early Detection) SRED pre-emptively discards packets with a load-dependent probability when a buffer in a router in the Internet or an Intranet seems congested. SRED has an additional feature that over a wide range of load levels helps it stabilize its buffer occupation at a level independent of the...

Network trafficking is the major research area nowadays since huge amount of data is being used in various forms. A major problem which is widely considered in network trafficking is congestion and apart from the congestion another problem is that the data is accessed without proper authorization. This paper describes the congestion control algorithm, RED which improves the latency by controlli...

Congestion on the Internet is an old problem but still a subject of intensive research. The TCP protocol with its AIMD (Additive Increase and Multiplicative Decrease) behavior hides very challenging problems; one of them is to understand the interaction between a large number of users with delayed feedback. This article will focus on two modeling issues of TCP which appeared to be important to ...

This paper discusses the application of TCP tunnels on the Internet and how Internet traffic can benefit from the congestion control mechanism of the tunnels. Primarily, we show the TCP tunnels offer TCP-friendly flows protection from TCP-unfriendly traffic. TCP tunnels also reduce the many flows situation on the Internet to that of a few flows. In addition, TCP tunnels eliminate unnecessary pa...

In this paper, we investigate the eeectiveness of packet-drop mechanisms in conjunction with fair queuing link scheduling and hierarchical link sharing. Under fair queuing, the link share of a ow changes dynamically due to the arrivals and departures of ows and their bursts. This phenomenon becomes more pronounced in the case of hierarchical link sharing. Packet-drop mechanisms play an integral...

Congestion in router buffer increases the delay and packet loss. Active Queue Management (AQM) methods are able to detect congestion in early stage and control it by packet dropping. Effective Random Early Detection (ERED) method, among many other AQM methods, gives a good performance in detect and control congestion and preserve packet loss. However, the ERED neglect the delay factor, which is...

A congestion avoidance scheme allows a network to operate in the region of low delay and high throughput. Such scheme prevent a network from entering in to congested state. RED(Random Early Detection), is one such congestion avoidance mechanism used for effectively control of congestion. In RED, router uses only the average queue size, as a congestion indicator and the average queue length is i...