C-18
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
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 th e 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 the firm w ar e 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 the firm w ar e w as
downloaded successfully to the ASC disk.
n. 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_$slot.BOOT command.
b. Enter the chkflash command. This command ca lculates and compares the Flash ch ecksum to verify
whether the boot code is correct.
c. Enter the version command. This command displays the version of the boot code currently stored
in Flash memory. This ste p dow nloads new firmware int o th e ASC.
Step 6 For all SMs
a. Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot/0.FW command.
b. Check the file size of the download ed firmw ar e. Use this step to check that the firm w ar e 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 7 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 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 establ is h ed th at th e
configuration has remained the same. Restore the ASC and SM configurations if necessary.
Procedure 11—Standard Downgrade, 1-Core Card Set
Procedure 11 is used for 4.x to 4.y, 4x to 5.x, and 5.x to 5.y.
Step 1 Check compatibility.
With any downgrade technique, there is a lway s t he issue of compatibility. Any release c an b e
downgraded to any othe r release, but in many in s tan c e s c o n fig ur a t io n information will b e l ost.
Hardware incompatibilities can p r event s om e d owng ra de s. F or exa mple, Release 2 and Release 3
service modules require two Flash chips. Release 4 SMs will be shipped with a single Flash chip. A
Release 4 shelf containing BNM-E1 ca rds or serv ice re sour ce modu le 3T3 c ards cann ot be do wn grade d
to Release 2 or Release 3. C heck the compatibility m at ri x to d e te rm ine if a particular downgrade is
supported and how it affects configurat io n lo s s.
Step 2 Save the current ASC configuration. Perform this step for the ASC prior to upgrading the firmware.