Incompatible Software And Stack Member Image Upgrades; Switch Stack Configuration Files - Cisco Catalyst 3120 Software Manual

Understanding Switch Stacks
Note Auto-advise and auto-copy identify which images are running by examining the info file and by
searching the directory structure on the switch stack. If you download your image by using the copy tftp:
boot loader command instead of the archive download-sw privileged EXEC command, the proper
directory structure is not created. For more information about the info file, see the
Images on a Server or Cisco.com" section on page

Incompatible Software and Stack Member Image Upgrades

You can upgrade a switch that has an incompatible universal software image by using the archive
copy-sw privileged EXEC command. It copies the software image from an existing stack member to the
one with incompatible software. That switch automatically reloads and joins the stack as a fully
functioning member. For more information, see the
Another" section on page

Switch Stack Configuration Files

The configuration files record these settings:
•
•
The stack master has the saved and running configuration files for the switch stack. All stack members
periodically receive synchronized copies of the configuration files from the stack master. If the stack
master becomes unavailable, any stack member assuming the role of stack master has the latest
configuration files.
Note We recommend that all stack members run Cisco IOS Release 12.2(40)EX or later. The interface-specific
settings of the stack master are saved if the stack master is replaced without saving the running
configuration to the startup configuration.
When a new, out-of-box switch joins a switch stack, it uses the system-level settings of that switch stack.
If a switch is moved to a different switch stack, that switch loses its saved configuration file and uses the
system-level configuration of the new switch stack.
The interface-specific configuration of each stack member is associated with the stack member number.
As mentioned in the
unless they are manually changed or they are already used by another member in the same switch stack.
•
•
If a stack member fails and you replace with it with an identical model, the replacement switch
automatically uses the same interface-specific configuration as the failed switch. Hence, you do not need
to reconfigure the interface settings. The replacement switch must have the same stack member number
as the failed switch. For information about the benefits of provisioning a switch stack, see the
Stack Offline Configuration" section on page
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
5-16
B-39.
System-level (global) configuration settings—such as IP, STP, VLAN, and SNMP settings—that
apply to all stack members
Stack member interface-specific configuration settings that are specific for each stack member
"Stack Member Numbers" section on page
If an interface-specific configuration does not exist for that member number, the stack member uses
its default interface-specific configuration.
If an interface-specific configuration exists for that member number, the stack member uses the
interface-specific configuration associated with that member number.
Chapter 5
B-25.
"Copying an Image File from One Stack Member to
5-8, stack members retain their numbers
5-9.
Managing Switch Stacks
"File Format of
"Switch
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