106 reputation
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age 49
visits member for 3 years, 2 months
seen Aug 2 '12 at 11:33
I love programming and have been doing it since 1972.

Sep
24
awarded  Autobiographer
Jan
2
comment need upload script for uploading files larger than 4GB
You are correct, I was wrong; Ethernet does have CRC. en.wikipedia.org/wiki/Ethernet_frame. My understanding was that most long-haul did not move over Ethernet, but that was back in the 1990s.
Jan
2
comment need upload script for uploading files larger than 4GB
Well, we see transmission errors all the time. They are not vanishingly slow. We are doing transfers of 10TB and 100TB sized objects and we routinely see a transmission error every 1-10 TB.
Jan
2
comment need upload script for uploading files larger than 4GB
For the record, Ethernet does not use CRC-32 checksums. FTP is based on TCP which uses a 32-bit IP checksum and a 32-bit TCP checksum. However, the problem with a 32-bit checksum is that you'll get an undetected error with 1 in 4 billion probability.
Nov
1
awarded  Student
Oct
4
comment need upload script for uploading files larger than 4GB
FTP has no error checking.
Oct
4
comment need upload script for uploading files larger than 4GB
Creating my own protocol is probably a mistake.
Oct
1
asked need upload script for uploading files larger than 4GB