Alcatel-Lucent OmniSwitch 6850E - Page 62

November 2013 AOS Release 6.4.6.R01 Release Notes
Downgrading - Step 1. Downgrade the FPGA/CPLD (If
required)
Follow the steps below to FTP the FPGA/CPLD downgrade kit to the switch and perform the
FPGA/CPLD downgrade. Note the following:
• The CMMs must be certified and synchronized and running from Working directory.
• This procedure will automatically reboot the switch or stack.
• Make sure the destination paths are correct when transferring the files. Also, when the transfer
is complete, verify the file sizes are the same as the original indicating a successful binary
transfer.
1. Download and extract the downgrade archive from the Service & Support website. The archive
will contain the FPGA/CPLD downgrade kit to be used for the downgrade.
2. FTP (Binary) the FPGA/CPLD downgrade kit listed above to the /flash directory on the primary
CMM.
3. Follow the steps below to downgrade the FPGA/CPLD.
WARNING: During the FPGA/CPLD downgrade, the switch will stop passing traffic. When the
downgrade is complete, the switch will automatically reboot. This process can take up to 5 minutes to
complete. Do not proceed to the next step until this process is complete.
Single Switch Procedure
Enter the following to begin the FPGA/CPLD downgrade:
-> update fpga cmm
The switch will downgrade the FPGA/CPLD and reboot.
Stack Procedure
Downgrading a stack requires all elements of the stack to be downgraded. The FPGA/CPLD
downgrade can be completed for all the elements of a stack using the ‘all’ parameter as shown below.
Enter the following to begin the FPGA downgrade for all the elements of a stack.
-> update fpga ni all
The stack will downgrade the FPGA and reboot.
Page 62 of 80 OmniSwitch 6850E/6855/9000E—Release 6.4.6.R01