C-15
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
c. 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.
d. Enter the switchcc command to switch to t he ot her ASC.
e. 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.
f. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
g. 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.
h. Enter the tftp put <ASC_FW_file> AXIS_ASC_ACTIVE.FW command.
i. Check the file size of the download ed firmw ar e. Use this step to check that the firm w ar e w as
downloaded successfully to the ASC disk.
j. Enter the dspfwrevs command to verify the correct firmware revision.
k. Enter the tftp put <ASC_FW_file> AXIS_ASC_STANDBY.FW command.
l. Check the file size of the download ed firmw ar e. Use this step to check that the firm w ar e w as
downloaded successfully to the ASC disk.
m. Enter the dspfwrevs command to verify the correct firmware revision.
Step 4 For all SM
a. Enter the tftp put <SM_BT_file> AXIS_SM_!$slot.BOOT command.
b. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
c. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o th e ASC.
Step 5 For all SMs, set the start and en d ad d re ss es i n Flash memory where the boot code file is written.
a. Enter the flashStartAddr and flashEndAddr commands to start the Flash memory file at
Oxbfc40000 and end it at 0xbfd00000
shelf.1.<slot>.<type><a|s>flashStartAddr = 0xbfc40000
shelf.1.<slot>.<type>.<a|s>flashEndAddr = 0xbfd00000
b. Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot.BOOT command.
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 clrallcnf command. This co m ma nd resets all cards on the shelf.
Step 6 For all SMs, enter the dsptotals command.
Use this step to examine the number of lines, p or t s, an d ch an n els af t er the up gra de or downgrade. The
values can be compared to those b ef or e th e d own lo ad a nd , t he re fo r e, it can be established that the
configuration has remained the same. Restore the ASC and SM configurations if necessary.