Deeper Understading of FTP

Guys I need some help (Explanation on the following).

Code:

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227 Entering Passive Mode (10,2,80,151,166,16).
150 Sending file to member TR20081030 in file TR20081030 in library TRBS.
426-Records written to file TR20081030 in library TRBS have been truncated. Data in file may not be valid.
227 Entering Passive Mode (10,2,80,151,166,18).
150 Sending file to member TR20081031 in file TR20081031 in library TRBS.
426-Records written to file TR20081031 in library TRBS have been truncated. Data in file may not be valid.

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Above is a println() of my process during FTP. Im using windows Vista and mt FTP server is IBM AS/400 and im transfering flat files. I want to know what does "426-Records written to file ..." Means. Please be gentle Im new to FTP. I had used google to find out but i still need someone to explain it to me in a much easier way.
What i use is ASCII transfer. Sometimes data are not send and sometimes some byte are missing and sometimes it is all OK. Im trying to search why.

Please give me some explanation or even pointers in using FTP transfer in java. Thank you very much.

The number at the start of the line is a status code. The english text is the meaning of the code.

Are you just using an FTP program? or a program that implements FTP? or do you mean you are trying to write code to do FTP in Java?

Have you read the RFCs for FTP?

FTR,
actually i have this simple FTP class i used for sending FTP. Its my first time to work on FTP. And could you kindly tell me what is RFC? I will look it up later during lunch break. I'am just curious with FTP. Thank you so much ^_^

lunch breakshall not include derivitaives of the fine meated product we know and love but shall include only the premium grade of beef and other meat products approved by idiots on the hill.

( joke for a friend of mine )

Quote:

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Originally Posted by Eku

FTR,
actually i have this simple FTP class i used for sending FTP. Its my first time to work on FTP. And could you kindly tell me what is RFC?

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Google is your friend, just google for
File Transfer Protocol RFC

Networking Basics (The Java™ Tutorials > Custom Networking > Overview of Networking)
What Is a URL? (The Java™ Tutorials > Custom Networking > Working with URLs)
Google: java ftp samples... here one:
Java FTP Examples Source Code

Luck,
CJSL

Thanks so much. This really helped me a lot.