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Appendix C
Firmware Upgrade and Downgrade Procedures
d.
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.
e.
Enter the switchcc command to switch to the other ASC.
f.
Enter the tftp put <ASC_BT_file> AXIS_ASC_BACKUP.FW command. This step downloads the
new boot code into the second ASC.
Enter the chkflash command. This command calculates and compares the Flash checksum to verify
g.
whether the boot code is correct.
Enter the version command. This command displays the version of the boot code currently stored
h.
in Flash memory. This step downloads new firmware into the ASC.
i.
Enter the donotupdatestandby command.
j.
Enter the tftp put <ASC_FW_file> AXIS_ASC_STANDBY.FW command.
Check the file size of the downloaded firmware. Use this step to check that the firmware was
k.
downloaded successfully to the ASC disk.
Enter the dspfwrevs command to verify the correct firmware revision.
l.
For all SMs
Step 6
Enter the tftp put <SM_BT_file> AXIS_SM_1_$slot.BOOT command.
a.
Enter the chkflash command. This command calculates and compares the Flash checksum to verify
b.
whether the boot code is correct.
Enter the version command. This command displays the version of the boot code currently stored
c.
in Flash memory. This step downloads new firmware into the ASC.
For all SMs
Step 7
a.
Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot/0.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.
d.
Enter the resetcd <standby_ASC> command. This command resets the standby card.
e.
Enter the resetcd <active_ASC> command. This command resets the active card.
Step 8
For all stand-alone SMs, enter the resetcd <stand-alone>command. This command resets the
stand-alone card.
Step 9
For all primary SMs in all redundancy groups
Enter the softswitch <primary_SM> <secondary_SM> command.
a.
Enter the softswitch <secondary_SM> <primary_SM> command.
b.
For all SMs, enter the dsptotals command.
Step 10
This step is to examine the number of 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 the ASC and SM configurations if necessary.
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
Graceful Upgrade and Downgrade Procedures
Cisco MGX 8220 Installation and Configuration
C-41
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Troubleshooting
