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C-37
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 Procedures
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 5 For all SMs
a. Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot.FW command.
b. Check the file size of the downloaded firmware. Use this step to check that the firmware was
downloaded successfully to the ASC disk.
c. Enter the dspfwrevs command to verify the correct firmware revision.
Step 6 For all stand-alone SMs, enter the resetcd command <stand-alone_SM>
Step 7 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 8 For all SMs, enter the dsptotals command.
Use this step to examine the number of shelf connections, lines, ports, and channels after the upgrade
or downgrade. The values can be compared to those before the download and, therefore, it can be
established that the configuration has remained the same. Restore ASC and SM configurations if
necessary.
Procedure 23—Graceful Upgrade, 2-Core Card Set
Procedure 23 is used for 4.x to 4.y, 4x to 5.x, and 5.x to 5.y.
Step 1 Save the current ASC configuration. Perform this step for the ASC prior to upgrading the firmware.
First reset the card, then use TFTP 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) configuration for each primary and stand-alone SM. Perform this
step for the SM prior to upgrading the firmware.
First reset the card, then use TFTP get to save the card’s current configuration in the workstation.
tftp shelf
tftp> bin
tftp> get AXIS_SM_1_<slot>.PRI.<service password>
Step 3 Enter the dspadrcxat command. Note the value of the 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 connections has not changed.
Step 4 For all primary and stand-alone SMs
a. Enter the dsptotals command.
The configuration of the shelf should not be changed during the downgrade process. Use 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 established that the configuration has remained the same.