I doing an IOS upgrade for a catalyst 3560-24ps over the wan and I'm just not able to transfert the ios code from my tftp server to the flash.
It worked fine in the test lab.
The error i'm getting is "Transmit error while sending to 10.230.x.x(this is my remote box): The connection is reset by remote side"
Before you upgrade the IOS in that switch, make sure there's enough space in that Flash. Your upgrade will fail if there's not enough space to store the new image.
You might have to delete the old image first in order to make room before upgrading it.
do a "show flash", and it will tell you how much space you've left on that flash card.
If you're using Windows XP workstation, you can have FTP server installed on your workstation and upgrade your switch the same way.
copy ftp flash
enter your workstation ip
enter the file_name
confirm destination file_name