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Packet loss occurs when one or more packets of data travelling across a computer network fail to reach their destination. Packet loss is either caused by errors in data transmission, typically across wireless networks, [1] [2] or network congestion. [3]: 36 Packet loss is measured as a percentage of packets lost with respect to packets sent.
Bufferbloat can also cause packet delay variation (also known as jitter), as well as reduce the overall network throughput. When a router or switch is configured to use excessively large buffers, even very high-speed networks can become practically unusable for many interactive applications like voice over IP (VoIP), audio streaming , online ...
Latency, from a general point of view, is a time delay between the cause and the effect of some physical change in the system being observed. Lag, as it is known in gaming circles, refers to the latency between the input to a simulation and the visual or auditory response, often occurring because of network delay in online games.
ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It is available in a wide range of operating systems – including most embedded network administration software.
There are two principal approaches to QoS in modern packet-switched IP networks, a parameterized system based on an exchange of application requirements with the network, and a prioritized system where each packet identifies a desired service level to the network. Integrated services ("IntServ") implements the parameterized approach.
Network emulation is the act of testing the behavior of a network (5G, wireless, MANETs, etc) in a lab.A personal computer or virtual machine runs software to perform the network emulation; a dedicated emulation device is sometimes used for link emulation.
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CoDel is based on observations of packet behavior in packet-switched networks under the influence of data buffers. Some of these observations are about the fundamental nature of queueing and the causes of bufferbloat, others relate to weaknesses of alternative queue management algorithms. CoDel was developed as an attempt to address the problem ...