Use of Management Interface in "Loader" Prompt

[asm110100]

I was working on a Nexus 3100 series switch stuck in the loader prompt from a failed IOS update. I tried setting the IP address on the management interface so I used TFTP to boot to the correct image. Pinging the interface never worked when directly connecting my laptop to it and setting a static IP in the same subnet. I also noticed no traffic was being sent when I put a Wireshark capture on it. Any idea if I am using the interface wrong if it is some weird bug?

Settings:

MGMT interface commands:

   set ip 10.0.0.2 255.255.255.0

   set gw 10.0.0.1

Laptop IP info:

   ip: 10.0.0.3 255.255.255.0

   gw: 10.0.0.1

[balaji.bandi]

check the recovery method below ( you can use USB if the image is not already on the device flash)

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/password_recovery/password-recovery-procedure-for-cisco-nxos.html

from PC, are you able to ping .1 and .2?

[asm110100]

I don’t have the option of flash media in this situation plus I would like to learn how to get the TFTP image recovery working. The PC’s Ethernet port is directly connected to the switch’s management interface so there isn’t actually a gw present. But no .1 and .2 do not ping. The management interface was sending no traffic whatsoever when I did a wire shark capture in it. It’s almost like it wasn’t even activating.

[balaji.bandi]

TFTP should work, can you post more information what is the challange here ?

[asm110100]

The switches management interface doesn’t seem to be working even when configured with an IP and gateway. Im trying to directly connect it via Ethernet to a laptop running a TFTP server.

[DanielP211]

Could you paste the configuration from the mgmt0 interface? Are you using the vrf member management? Also note you have to use the following commands:
ip tftp source-interface mgmt0 vrf management

BR

[asm110100]

It’s stuck in “loader>” mode. The only config it has is the IP info in the original post.

[DanielP211]

aa OK. Can you do a dir and display the files it displays? If you see an nxos.XX.bin do a:
boot n3000-uk9-kickstart.XX.bin. (kickstart image)
It will be easer to copy the new image from there. If you cannot see the bootflash you could have a corrupted filesystem...

Ok so do the following if you don't have a USB present and DIR dosent display the correct image:

set ip 10.0.0.2 255.255.255.0
boot tftp://10.0.0.3/n3000-uk9-kickstart.bin
Make sure your TFTP is running as administrator and that you don't have a windows firewall UP. 

BR

[asm110100]

What you described is what I’m doing. The problem is the management interface doesn’t seem to activate when configured with an IP and gateway. I even put wireshark on it and it was sending no traffic.