Network Monitoring: Delay, Latency, Throughput
Delay is the time taken by data bit to travel, latency is measured by sending a packet that is returned to the sender; the round-trip time is considered the latency and the average rate of successful message delivered is throughput
Summary
Delay is the time taken by data bit to travel, latency is measured by sending a packet that is returned to the sender; the round-trip time is considered the latency and the average rate of successful message delivered is throughput
Things to Remember
- The delay of a network specifies how long it takes for a bit of data to travel across the network from one node ( host or router ) or endpoint to another.
- Total latency of a network is one-way latency from source to destination plus the one-way latency from the destination back to the source.
- Throughput is the average rate of successful message delivery over a communication channel. Measured in bits/second.
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Network Monitoring: Delay, Latency, Throughput
Delay
The delay of a network specifies how long it takes for a bit of data to travel across the network from one node ( host or router ) or endpoint to another. When a packet travels from one node to the subsequent node along the path, it suffers from several types of delays at each and every node along the paths like Nodal processing delays /Processing Delays, delay in Queuing, Transmission delay and delay in Propagation.
Latency
Latency is an expression of how much time it takes for a packet of data to travel from one node to another. Total latency of a network is one-way latency from source to destination plus the one-way latency from the destination back to the source.
Throughput
Throughput is the average rate of successful message that a communication channel can delivery over a communication period. Its measuring unit is bits/second.
References:
- A.S. Tanenbaum, “Computer Networks”, 3rd Edition, Prentice Hall India, 1997.
- W. Stallings, “Data and Computer Communication”, Macmillan Press, 1989.
Lesson
Physical Layer
Subject
Computer Engineering
Grade
Engineering
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