C-7
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix C Firmware Upgrade and Downgrade Procedu r es Standard Upgrade and Downgrade Procedures
First reset the card, then u se T FTP get to save the card’s current configuration in the workstation.
tftp shelf
tftp> bin
tftp> get AXIS_SM_1_<slot>.PRI.<service password>
Step 3 Enter the dspadrcxat command. Note the value of th e C o nn N u m OfValidEntries p a ra m e te r.
This value indicates the number of connec tion. This command is run again at the end of th e p roce dure
to ensure that the number of co nnec tions has not changed.
Step 4 For all stand-alone and primary SM s
a. Enter the dsptotals command.
The configuration of the shelf should not be changed during the downgrade process. Use this step
to examine the number of lines, ports, and channels before the upgrade or downgrade. A similar
step can be made to examine the same configuration parameters after the upgrade or downgrade
and, therefore, it can be estab li she d that the configuration has rema ined the same.
b. Enter the tftp put <ASC_BT_fi le> AXIS_A SC_B ACKUP.FW command. This step downloads the
new boot code into the ASC.
c. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
d. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o th e ASC.
e. Enter the switchcc command to switch to t he ot her ASC.
f. Enter the tftp put <ASC_BT_fi le> AXIS_A SC_B ACKUP.FW command. This step downloads the
new boot code into the second ASC.
g. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
h. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o th e ASC.
i. Enter the tftp put <ASC_FW_file> AXIS_ASC_ACTIVE.FW command.
j. Check the file size of the download ed firm w ar e. U se t his to check that the firmware wa s
downloaded successfully to the ASC disk.
k. Enter the dspfwrevs command to verify the correct firmware revision.
l. Enter the tftp put <ASC_FW_file> AXIS_ASC_STANDBY.FW command.
m. Check the file size of the download ed firmw ar e.U s e th is step t o ch eck t ha t the firmware was
downloaded successfully to the ASC disk.
n. Enter the dspfwrevs command to verify the correct firmware revision.
Step 5 For all SMs, set the start and en d ad d re s ses i n Flas h m emory where the boot code file wi ll be written.
a. Enter the flashStartAddr and flashEndAddr commands to start the Flash memory file at
Oxbfc00000 and end it at 0xbfc40000
shelf.1.<slot>.<type><a|s>flashStartAddr = 0xbfc00000
shelf.1.<slot>.<type>.<a|s>flashEndAddr = 0xbfc40000
b. Enter the tftp put <SM_BT_file> AXIS_SM_1_$slot.FW command.
c. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.