C-24
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
Step 6 For all SMs, set the start and en d ad dresses in Flash memory wher e the firmware file will be written.
a. Enter the flashStartAddr and flashEndAddr commands to start the Flash memo r y file at
0xbfc00000 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_$slot.FW command.
c. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
d. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o th e ASC.
e. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
f. Enter the flashStartAddr and flashEndAddr commands to start the Flash memo r y file at
0xbfc40000 and end it at 0xbfd00000
shelf.1.<slot>.<type><a|s>flashStartAddr = 0xbfc40000
shelf.1.<slot>.<type>.<a|s>flashEndAddr = 0xbfd00000
g. Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot.FW command.
h. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
i. Enter the resetcd command. This command resets the card.
Step 7 For all SMs, enter the dsptotals command.
Use this step to examine the num ber of shelf connections, lin es, po r ts, a nd channels after the upgrade
or downgrade. The values can be comp ar ed t o th ose before the download and, theref ore, it can be
established that the configuration has remained the same. Restore the ASC and SM configurations if
necessary.
Procedure 15—Graceful Upgrade, 2-Core Card Set
Procedure 15 is use d f o r 1. 2.x to 2.y.
Step 1 Save the current ASC configuration. Perform this step for the ASC prior to upgrading the firmware.
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_ASC_ACTIVE.BR
Step 2 Save the current service module (SM) co nfiguration for each primary and stand- alone SM. Perform this
step for the SM prior to upgrading the firmware.
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>