Cisco Router copy TFTP flash: - how much data represented by each "!"

amigan_99
amigan_99 used Ask the Experts™
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Running a copy tftp flash: on a Cisco 4331 and it's taking for every

!!!.!!!!.!!!!!!!!!!!.!!!!.!!!!!!!!.!.!!!!!!!!!!.!!!!!.!!.!!!!!!!!!.!!!!!!!!!.!!!!!!!!!!!!!!!.!!!!!!.!!!!!!!!!!!.!!.!.!!.!.!!!!!!!!.!!!.!!.!!!.!!.!!!!!!!!!!!!.!.!!!!!!!!!!! etc etc

Does anyone know how much data is represented by each question mark? I'm surprised at how long this
is taking because I have a gig link to the data center and only 10ms latency.
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Distinguished Expert 2018
Commented:
Have no idea how much data is one exclamation point.
It is not link speed problem, but TFTP is slow, by default to copy file size of 250MB takes around 30 minutes. You can speed it up by using larger blocksize (not sure is that available for all devices).

#config t
#ip tftp blocksize 8192

With this configuration settings it would take around 2 minutes to copy 250MB file.
Cisco article.
amigan_99Network Engineer

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Commented:
Great tip. Thanks!

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