C-21
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 Graceful Upgrade and Downgrade Procedures
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 checksum 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 the ASC.
i. Enter the tftp put <ASC_FW_file> AXIS_ASC_ACTIVE.FW command.
j. Check the file size of the download ed firmw ar e. Use this step to check that th e firm w are w as
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. Use this step to check that th e firm w are w as
downloaded successfully to the ASC disk.
n. Enter the dspfwrevs command to verify the correct firmware revision.
Step 6 For all SMs
a. Enter the tftp put <SM_BT_file> AXIS_SM_1_$slot.BOOT command.
b. Enter the chkflash command.
This command calculates and c om pa re s th e Flas h ch ec ksu m to ver ify w h eth er t he bo o t c od e is
correct.
c. Enter the version command.
This command displays the version of the boot code currently stored in Flash memory. This step
downloads new firmware into the ASC.
Step 7 For all SMs
a. Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot/0.FW command.
b. Check the file size of the download ed firmw ar e. Use this step to check that th e firm w are w as
downloaded successfully to the ASC disk.
c. Enter the dspfwrevs command to verify the correct firmware revision.
d. Enter the resetsys command. This comm an d res ets all cards on the shelf.
e. Enter the dspadrxlat command to ensure that the number of connections is correct.
Step 8 For all primary and stand-alone 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.
Graceful Upgrade and Downgrade Procedures
These procedures must be perfo rm ed at a U N I X w ork stat io n th at has an operating data path to th e
MGX 8220. The workstation must be able to send MGX 8220 CLI commands and UNIX Trivial File
Transfer Protocol (TFT P) downloads.