C-48
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
Description of Upgrade/Downgrade Term inology
Save/Restore SM Configuration
The ASC card stores service module (SM) configuration information on the disk in a configuration
(PRI) file. The file contains a revision which identifies the format of the configura tion information. The
format can change from release to release. Th e newer versi on of firm war e alwa ys p rovi de s conversion
routines which automatically reformat the configuration information as part of an upgrade. However,
there is no support for reformatting as part of a firmware downgrade.
If the SM configuration f i le r e v isi on is d if f ere nt betw ee n the f i rmw ar e re v isi on s involved in an upgrade,
the configuration file should be saved for each primary and stand-alone SM using:
tftp shelf
tftp> bin
tftp> get AXIS_SM_1_<slot>.PRI.<service password>
tftp> quit
In general, it is recommended to s ave th e SM c onfiguration file for each primary a nd st and-alone SM
prior to any upgrade. If the SM configuration file revision is different between the firmware revisions
involved in a downgrade, the configuration file shoul d be restored for each primary and stan d-alone SM
using:
tftp shelf
tftp> bin
tftp> put AXIS_SM_1_< s lo t> .P RI .< s er vi ce pa s swo r d>
tftp> quit
The standby ASC card must be res et i n o rde r to download the SM configuratio n files from the active
ASC card. Each primary and stand-alone SM must be reset in order to run the saved configuration. If
the SM configuration file re vi sio n is t he same bet we en the f i rmwa re revisions involved in a do wng ra de,
the SM configuration s h ou ld be preserved (the re is no need to re s to r e the configuration) .