Symptom
TFTP error occurs when we copy running-configuration (or any file in the flash) of C9300-48P to a TFTP server. The configuration file is created on the TFTP server but no actual content in the file (file size=0).
The switch display a timed out error in writing the file to the tftp server.
Conditions
The issue is noticed when the system MTU is set to 9000 with a TFTP block size of 8192.
Workaround
The transfers are successful when the MTU is set to 1500 or the TFTP block size is reduced to 1492
Further Problem Description
After Configuring 'Allow Jumbo Packets' on PC/Server, copy works as expected.
