Ethernet Fabric (VDX, CNA)

New Member
Posts: 1
Registered: ‎07-15-2015

Firmware update for VDX6740

I'm trying to update a pair of VDX6740's in logical chassis mode from NOS 4.0.1 to 6.0.1 in the least disruptive way I can see.


It seems that an ugrade path via 4.1.x and 5.0.x seems to be the correct way but I am failing at the first hurdle.


I have downloaded 4.1.3b and expanded (tar -zxvf) to an FTP server


I can access the files without issue from another host without problem


The manual says use the following command (with corrected values obviously)


switch# firmware download logical-chassis protocol ftp host user fvt password brocade directory /dist/nos/4.0.0bld01 file release.plist rbridge-id all

but the file 'release.plist' doesn't exist in the root of the expanded .qz file, only in a number of subfolders of the form SWBDxxxx.  Setting the 'directory' value to any of these gives me a failed sanity check 

"The server is inaccessible or firmware path is invalid. Please make sure the server name or IP address, the user/password and the firmware path are valid."


i also found (in the forums) that the following could be used


switch# firmware download logical-chassis ftp host user auser pass apass rb all directory /nos/nos4.1.3b/


This has the same result.


What am I doing wrong?

New Contributor
Posts: 2
Registered: ‎08-30-2013

Re: Firmware update for VDX6740


Try without the 'file' command.


firmware download logical-chassis protocol ftp host user fvt password brocade directory /dist/nos/4.0.0bld01 rbridge-id all


This will probably throw you a error relating to ISSU not being supported as you are upgrading major versions.


I think you need to use the manual command.


firmware download ftp manual host password brocade user fvt directory /dist/nos/x.x.x

Posts: 47
Registered: ‎08-03-2015

Re: Firmware update for VDX6740

Please confirm it from Brocade support that is it possible to upgrade directly from NOS 4.0.1 to 6.0.1, because i think its not possible.

Umair Khan Patel

Join the Community

Get quick and easy access to valuable resource designed to help you manage your Brocade Network.

vADC is now Pulse Secure
Download FREE NVMe eBook