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Module: 9 QoS Concepts - Coggle Diagram
Module: 9 QoS Concepts
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9.3 Queuing Algorithms
9.3.2 Queuing Overview
The previous topic covered traffic characteristics. This topic will explain the queuing algorithms used to implement QoS. The QoS policy implemented by the network administrator becomes active when congestion occurs on the link.
9.3.3 First In First Out
FIFO has no concept of priority or classes of traffic and consequently, makes no decision about packet priority. There is only one queue, and all packets are treated equally. Packets are sent out an interface in the order in which they arrive, as shown in the figure.
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