C-38
Cisco MGX 8220 Installation and Configuration
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Appendix C Firmware Upgrade and Downgrade Procedures
Graceful Upgrade and Downgrade Procedu res
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 checksum 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 the 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 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 donotupdatestandby command.
j. Enter the tftp put <ASC_FW_file> AXIS_ASC_STANDBY.FW command.
k. 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.
l. Enter the dspfwrevs command to verify the correct firmware revision.
Step 5 For all SMs
a. Enter the tftp put <SM_BT_file> AXIS_SM_1_$slot.BOOT command.
b. Enter the chkflash command. This command ca lculates and compares the Flash checksum to verify
whether the boot code is correct.
c. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o the ASC.
Step 6 For all SMs
a. Enter the tftp put <SM_FW_file> AXIS_SM_1_$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 resetcd <standby_ASC > command. This command reset s th e standby card.
e. Enter the resetcd <active_ASC> command. This command resets the active card.
Step 7 For all stand-alone SMs, enter the resetcd <stand-alone> command. This comma nd rese ts the
stand-alone card.
Step 8 For all primary SMs in all redundancy groups
a. Enter the softswitch <primary_SM> <secondary_SM> command.
b. Enter the softswitch <secondary_SM> <primary_SM> command.
Step 9 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 upgr ad e o r downgr ad e. Th e
values can be compared to those b ef or e t h e d ownlo ad a nd, therefore, it can be esta bl ish e d th at th e
configuration has remained the same. Restore the ASC and SM configurations if necessary.