Cisco Catalyst 4500 series Overview page 46

Chapter 1 Module Overview and Specifications
Hot-Swapping Feature
To avoid erroneous failure messages, allow at least 15 seconds for the system to
Caution
reinitialize, and note the current configuration of all interfaces before you remove
or insert another switching module.
When you hot swap switching modules, the system displays status messages on
the console screen. The following sample display shows the messages logged by
the system when a switching module is removed from slot 2:
Console> (enable)
2001 Sep 09 12:23:26 %SYS-5-MOD_REMOVE:Module 3 has been removed
Console> (enable)
2001 Sep 09 12:23:44 %SYS-5-MOD_INSERT:Module 3 has been inserted
Console> (enable)
2001 Sep 09 12:23:47 %SYS-5-MOD_OK:Module 3 is online
Console> (enable)
If you use the show port command to query the module before reinstalling a
module to replace the removed one, the system responds, "Module 3 is not
installed." When the module is reinserted, the system recognizes the module as
ready again.
Catalyst 4500 Series Module Installation Guide
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