C-4
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
Standard Upgrade and Downgrade Proced ures
Procedure 1—Standard Upgrade, 1-Core Card Set
Procedure 1 is used for 1.2.x to 2.y, 2.2.x to 3.y, and 3.3.x to 3.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 passwo rd
Step 3 Enter the dspadrcxat command. Note the value of th e ConnNumOfValidEntries parameter.
This value indicates the number of connections. This command is run again at the end of the procedure
to ensure that the number of co nn ec tions did not change.
Step 4 For all primary and stand-alone SMs
a. Enter the dsptotals command.
The configuration of the shelf sh ould no t be change d duri ng the upgr ade or do wngra de proc ess. Us e
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 es t abl ish e d t ha t t he co n figur at io n ha s re mai ne d 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 tftp put <ASC_FW_file> AXIS_ASC_ACTIVE.FW command.
f. 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.
g. 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 w i ll be w ri tt en .
a. Enter the flashStartAddr and flashEndAddr commands to start the Flash memo r y 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.