88 CHAPTER 11: USING SWITCH CONFIGURATION FEATURES
user attempts to restore a configuration that was saved by a security level
user, the restore operation will fail because the security level commands
are not available to the manager. A manager level user can only save a
configuration that contains the commands that are available to that user
level.
Important Considerations
■ The Switch unit must be reset to its factory default settings before you
can restore a configuration onto it. You can reset the Switch using the
system control initialize CLI command or the System > Control
> Initialize Web interface operation.
■ The configuration can only be restored onto a device or stack which
has the same physical connections and configuration, including
expansion modules, as when the configuration was initially saved. The
restore operation will be unsuccessful if the physical configuration of
the device or stack is different.
■ The configuration of the Switch must only be restored or saved by a
single user at a time. The
system summary CLI command displays the
progress of restore and save operations to all other users.
■ When using the Configuration Save and Restore feature, 3Com
recommends that aggregated links are configured as either:
■ Manual aggregations with Link Aggregation Configuration
Protocol (LACP) disabled on the ports that are to be manually
placed in the aggregated link.
or
■ LACP automatic aggregations — that is, LACP enabled on all ports
and the aggregated links created automatically. The aggregated
link should be enabled and Spanning Tree Protocol enabled.
Parameters such as VLANs and Fast Start may be set up as required.
Other combinations of port settings, however, are not recommended
as Configuration Restore will only perform a “best effort” restore of
the configuration. For example, LACP automatic aggregations with
manually defined ports are restored as manual aggregations with
manual ports. LACP automatic aggregations with automatic ports
where the aggregated link is disabled and Spanning Tree Protocol is
disabled are restored as manual aggregations with the aggregated link
disabled.
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