C-44
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
dspfwrevs The dspfwrevs command was first i ntr odu ced i n R ele ases 2.1. 25 and 4 .0 .02 a nd la te r in Re l ease 3. An y
time ASC firmware is TFTP put to an ASC card running Release 2.1.25 or Release 4.0.02 (or greater),
the dwpfwrevs command can be used to ensur e th at th e A S C firmw ar e w as suc cessfully TFTP-put to
the disk. Any time SM firmware is TFTP-put to an ASC card running Release 4.0.02 (or greater), the
dwpfwrevs command ca n be u s ed to en su r e th at t he S M firm war e w as su cc essfully TFTP-put to the
disk.
Example: shelf.1.<3|4>.ASC.<a|s> dspfwrevs
Slot-Specific and Card-Type-Specific SM Firmware MGX 8220 active ASC cards running Release 2 or Release 3 firmware support TFTP-putting
slot-specific SM firmware. This means that firmw are is TFTP-put to each SM slot individually. The SM
firmware is written direc tly to the SM Flash. Within t he upgrade/downgrade techni ques, this is denoted
as
tftp put <SM_FW_file> AX I S _SM _ 1_$slot.FW
MGX 8220 active ASC cards running Release 4 firmware support TFTP-putting card-type-specific
SM firmware (in add ition to slot-speci fic SM firmware). In R elease 4, the SM firm ware is written to the
ASC disk instead of t he SM Flash as in Releas e s 2 a n d 3 .
In Release 4, a single SM firmware file can be TFTP put to the ASC disk for all SMs of a p articular card
type. This is denoted as
tftp put <SM_FW_file> AXIS_SM_1_0.FW
Each time an SM is reset, it downlo ad s th e SM firmware file based on its card ty p e. M G X 82 2 0 a ctive
ASC cards running Release 4 firmware a lso support TFTP-p utting slot-type- specific SM firmware. The
SM firmware is still written to the ASC disk.
Slot-specific SM firmware takes precede nc e over car d -typ e- sp eci fic firmwa re . T hat is, for a SM of a
particular card type in a particular slot, if both card-type-specific and slot-specific firmware files exist,
the slot-specific firmware is download ed t o th e S M .
A CONFIG.SYS file on the ASC disk keeps t rack of which SM firmware files are “in effect.” If an SM
firmware file (slot-specific o r card-type-specific) is no t contained within the C ONFIG.SYS file, it is not
downloaded to an SM.
An SM firmware file is automatica lly added to the CONFIG.SYS file when it is TFTP-put to the ac tive
ASC disk, and when the active AS C di sk downloads the SM firmware file to th e st andby ASC disk. A
SM firmware file can be removed from the CONFIG.SYS file entering the delcfgsys command.
The dspfwrevs command can be used to list all of the SM fi rmware files on the active and standby ASC
disks and identify which SM firmware files are contained w i th in th e CONFIG.SYS file.
Config File Name Card Type Version
—asc fw ASC <version>