file size large tftp does not support(IOS upgrade error)

Unanswered Question
Apr 4th, 2008

Hi,all

Thanks in advance

When we are upgrade the IOS of router with latest ios which is 35 mb size file by using cisco tftp or any third party tftp software it's showing error like below

file size large.does not suuported by tftp protocol.

I have this problem too.
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Richard Burts Fri, 04/04/2008 - 04:17

sandeep

I have used 3Cdaemon suggested by Dandy with good success. As an alternative I have heard good things about tftpd32 and its support for features like large file size. It is available from:

http://tftpd32.jounin.net/

I would also like to make the suggestion that as file sizes of IOS get larger there are benefits from using FTP instead of TFTP. Not only does FTP not have a file size restriction but the performance of FTP for transferring large files is much better than the performance of TFTP.

HTH

Rick

Joseph W. Doherty Fri, 04/04/2008 - 04:55

". . . the performance of FTP for transferring large files is much better than the performance of TFTP."

Very, very true as latency increases, as you often see on WAN links. (NB: RCP also works well too.)

Harold Ritter Fri, 04/04/2008 - 06:10

I agree with Joseph. I would rather use FTP when the file size goes beyond 32 MB.

Regards,

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