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Appendix C
Firmware Upgrade and Downgrade Procedures
f.
g.
h.
i.
j.
k.
l.
m.
n.
For all SMs
Step 6
a.
b.
c.
Step 7
For all SMs
a.
b.
c.
d.
e.
For all primary and stand-alone SMs enter the dsptotals command.
Step 8
Use this step 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.
Graceful Upgrade and Downgrade Procedures
These procedures must be performed at a UNIX workstation that has an operating data path to the
MGX 8220. The workstation must be able to send MGX 8220 CLI commands and UNIX Trivial File
Transfer Protocol (TFTP) downloads.
Release 5.0, Part Number 78-6430-03 Rev. D0, November 2003
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
whether the boot code is correct.
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.
Enter the tftp put <ASC_FW_file> AXIS_ASC_ACTIVE.FW command.
Check the file size of the downloaded firmware. Use this step to check that the firmware was
downloaded successfully to the ASC disk.
Enter the dspfwrevs command to verify the correct firmware revision.
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
downloaded successfully to the ASC disk.
Enter the dspfwrevs command to verify the correct firmware revision.
Enter the tftp put <SM_BT_file> AXIS_SM_1_$slot.BOOT command.
Enter the chkflash command.
This command calculates and compares the Flash checksum to verify whether the boot code is
correct.
Enter the version command.
This command displays the version of the boot code currently stored in Flash memory. This step
downloads new firmware into the ASC.
Enter the tftp put <SM_FW_file> AXIS_SM_1_$slot/0.FW command.
Check the file size of the downloaded firmware. Use this step to check that the firmware was
downloaded successfully to the ASC disk.
Enter the dspfwrevs command to verify the correct firmware revision.
Enter the resetsys command. This command resets all cards on the shelf.
Enter the dspadrxlat command to ensure that the number of connections is correct.
Graceful Upgrade and Downgrade Procedures
Cisco MGX 8220 Installation and Configuration
C-21
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Troubleshooting
