I was simulating TCP used by dailymotion.com, and I noticed that when I increased packet error rate, the consumed BW was increased. How?

  • 1
    retransmision ?
    – JFL
    Commented Feb 29, 2016 at 14:40

2 Answers 2


Errors in transmission are detected in TCP layer.

The receiving TCP layer discards the damaged segment, forcing the sender to sent the segment again.


TCP is a reliable transport protocol, and it will request missing segments to be resent. The segments get sent, get lost or corrupted, and resent. This causes more data to be sent.

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