Transmission time

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In telecommunication networks, the transmission time, also considered as the propagation delay, is the amount of time it takes a bit to go from the start of the link to its destination node. The propagation speed depends on the physical medium of the link (that is, fiber optics, twisted-pair copper wire, etc.) and is in the range of 2 * 10⁸ meters/sec to Failed to parse (Cannot write to or create math output directory): 3*10^8

meters/sec which is equal to, or a little less than, the speed of light. The transmission time can be calculated by dividing the length of the medium by its propagation speed. In wide-area networks, the propagation delays are on the order of milliseconds.

Transmission time can be obtained from the packet size and the effective network bandwidth
Transmission time = Packet Size / Data bandwidth

[edit] References

Kurose, J.F. & Ross, K.W. (2005) Computer Networking -- A top-down approach featuring the internet. Pearson Education Inc. ISBN 0-321-26976-4