Cisco Nexus TFTP Error

Today, I had a problem today getting a file onto a Cisco Nexus 7700.  Everything looked OK right up to the last packet of information to go then threw up an error…

Nexus-7710# copy tftp: bootflash:/// vrf management 
Enter source filename: n7000-s2-kickstart.8.1.2a.bin
Enter hostname for the tftp server: 192.19.0.10
Trying to connect to tftp server......
Connection to Server Established.
TFTP get operation failed:Undefined error code (2)

The logs from my Solarwinds TFTP software showed the peer reset the connection and error code 2 usually means Access Violation.  I couldn’t find a problem with either the TFTP file name, if it were write permissions i wouldn’t expect it to start the transfer, and there was plenty of space on the bootflash!  As a test, i downloaded and used TFTPD64 and it worked without a problem!  I’m not sure if it was the Nexus or Solarwinds not playing nicely but i’d found a solution and needed to move on with the job!  Just making a note here to remind future me to try a different TFTP server (or just use a USB if i were closer onsite!)

Nexus-7710# copy tftp: bootflash:/// vrf management 
Enter source filename: n7000-s2-kickstart.8.1.2a.bin
Enter hostname for the tftp server: 192.19.0.10
Trying to connect to tftp server......
Connection to Server Established.
TFTP get operation was successful

 

 

 

 

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