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User Guide for Resource Manager Essentials 4.1
OL-11714-01
Appendix A RME Troubleshooting Tips and FAQs
Software Management
A.
The redundant architecture of Cisco Catalyst devices ensures that when the device reboots after a
software upgrade, the redundant Supervisor Engine automatically synchronizes all the data from the
primary Supervisor Engine. No special processes are necessary.
Q.
Does Software Management update the configuration file on Cisco Catalyst 5500/5000 devices
during the software upgrade?
A.
Software Management updates the configuration file on Catalyst 5500/5000 devices only when the
device has a Supervisor Engine III card. Software Management updates the boot system commands
and the config register value if necessary.
For Supervisor Engine I and II and other module upgrades, Software Management does not update
the configuration file on the device. Instead, Software Management uses CISCO-STACK-MIB and
TFTP to download the configuration file. Before Software Management changes the configuration
file on the device, Software Management backs up the file to the Job Schedule directory.
The example below illustrates the Software Management update of the configuration file. Assume
that a Supervisor Engine III card runs 3.1(1) software. Also, assume that the software image file is
on slot0 with the name cat5000-sup3.3-1-1.bin.
The configuration file boot system commands before the upgrade are:
set boot system flash slot0:cat5000-sup3.3-1-1.bin
Software Management has upgraded the software to 4.1(2). The new software image is on the same
Flash card as cat5000-sup3-4-1-2.bin. Software Management then performs these configuration
updates:
clear all boot system all
This removes all boot system commands on the device.
set boot system flash slot0:cat5000-sup3.4-1-2.bin
set boot system flash slot0:cat5000-sup3.3-1-1.bin
The update modifies the BOOT environment variable on the Supervisor Engine III card. You can
display the environment values on the device is you issue the show boot command from the
Supervisor Engine command-line interface (CLI).
The config register update occurs only if the least significant four bits of the config register are not
all set to “1”.
For example, if the current config register value is 0x10F (with the least significant four bits all 1s),
Software Management requires no change to the config register. If the current config register value
is, for example, 0x111 or 0x11A, Software Management modifies the config register to 0x11F. The
action generates this command:
set boot config-register 0x11F
Q.
Does Software Management determine if the Supervisor Engine has the minimum required RAM to
run a new image?
A.
Software Management uses the Minimum Required RAM field for the Supervisor Engine software
image. You can set this field when you import the image into the library. If you do not input a value
in this field, Software Management uses this matrix to determine the RAM requirement:
Image Type Software Version RAM Requirement
–
I, II sup < 2.1(1) 4 MB
–
I, II sup > = 2.1(1) & < 3.1(1) 8 MB
–
I, II sup8 > = 3.1(1) & < 4.1(1) 8 MB (8 MB RAM image)