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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 5 Managing Switch Stacks Understanding Switch Stacks
• Automatic advise (auto-advise) occurs when the auto-upgrade process cannot find appropriate stack
member software to copy to the switch in VM mode. This process tells you the command (archive
copy-sw or archive download-sw privileged EXEC command) and the image name (tar filename)
needed to manually upgrade the switch stack or the switch in VM mode. The recommended image
can be the running switch stack image or a tar file in any flash file system in the switch stack
(including the switch in VM mode). If an appropriate image is not found in the stack flash file
systems, the auto-advise process tells you to install new software on the switch stack. Auto-advise
cannot be disabled, and there is no command to check its status.
The auto-advise software does not give suggestions when the switch stack software and the software
of the switch in VM mode do not contain the same feature sets. For example, if the switch stack is
running the IP base image and you add a switch that is running the IP services image, the auto-advise
software does not provide a recommendation.
You can use the archive-download-sw /allow-feature-upgrade privileged EXEC command to
allow installing an different software image.
Auto-Upgrade and Auto-Advise Example Messages
When you add a switch that has a different minor version number to the switch stack, the software
displays messages in sequence (assuming that there are no other system messages generated by the
switch).
This example shows that the switch stack detected a new switch that is running a different minor version
number than the switch stack. Auto-copy starts, finds suitable software to copy from a stack member to
the switch in VM mode, upgrades the switch in VM mode, and then reloads it:
*Mar 11 20:31:19.247:%STACKMGR-6-STACK_LINK_CHANGE:Stack Port 2 Switch 2 has changed to
state UP
*Mar 11 20:31:23.232:%STACKMGR-6-SWITCH_ADDED_VM:Switch 1 has been ADDED to the stack
(VERSION_MISMATCH)
*Mar 11 20:31:23.291:%STACKMGR-6-SWITCH_ADDED_VM:Switch 1 has been ADDED to the stack
(VERSION_MISMATCH) (Stack_1-3)
*Mar 11 20:33:23.248:%IMAGEMGR-6-AUTO_COPY_SW_INITIATED:Auto-copy-software process
initiated for switch number(s) 1
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:Searching for stack member to act
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:as software donor...
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:Found donor (system #2) for
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:member(s) 1
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:System software to be uploaded:
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:System Type: 0x00000000
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:archiving
c3750e-universal-mz.122-35.SE2(directory)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:archiving
c3750e-universal-mz.122-35.SE2/c3750e-universal-mz.122-35.SE2.bin (4945851 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:archiving
c3750e-universal-mz.122-35.SE2/info (450 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:archiving info (104 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:examining image...
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:extracting info (104 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:extracting
c3750e-universal-mz.122-35.SE2/info (450 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:extracting info (104 bytes)
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:Stacking Version Number:1.4
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW:System Type: 0x00000000
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW: Ios Image File Size: 0x004BA200
*Mar 11 20:36:15.038:%IMAGEMGR-6-AUTO_COPY_SW: Total Image File Size:0x00818A00