Shutting Down A Module - Cisco Catalyst 4500 Series Software Configuration Manual

Unscheduled uplink module removal is not supported because the C4KX-NM-8 module has hardware
Note
communication lines to the baseboard that cannot be unplugged in an online state. Communication must
be stopped first.
Before removing the uplink module, you must press the OIR button for 5 seconds, and wait for the OIR LED to turn Green.
Removing a module without pressing the OIR button causes the system to reboot to ROMMON with the following console
error message:
Kernel panic - not syncing: Removing a module from switch causes instability.
Rebooting in 15 seconds...
No special steps are needed for insertion.
Note
With Cisco Release IOS XE 3.3.0SG and IOS 15.1(1)SG, two CLI's are introduced: hw-module module number start and
hw-module module number stop. For the number keyword, the only applicable value for WS-C4500 is 2. With Cisco Release
IOS XE 3.3.0SG and IOS 15.1(1)SG, the start and stop commands are only enabled on the uplink module of WS-4500X-32.
For details, please refer to the hardware portion of the documentation library:
http://www.cisco.com/en/US/products/hw/switches/ps4324/prod_installation_guides_list.html

Shutting down a Module

To shut down a module safely, either enter the hw-module module stop command or press the OIR button for 5 seconds.
The hw-module module stop command is enabled only on the uplink modules of the WS-C4500X-32.
Note
The following example shows what happens if a module is up and you enter the hw-module module stop command:
Switch# hw-module module 2 stop
Proceed with module stop? [confirm]
Switch#
*Feb 5 16:34:37.325: %C4K_IOSMODPORTMAN-6-MODULEOFFLINE: Module 2 is offline
Switch# show module
Chassis Type : WS-C4500X-32
Power consumed by backplane : 0 Watts
Mod Ports Card Type
---+-----+--------------------------------------+------------------+-----------
1 32 4500X-32 10GE (SFP+)
2 8 Module being held in reset
M MAC addresses
--+--------------------------------+---+------------+----------------+---------
1 0022.bde2.1061 to 0022.bde2.1080 0.2 15.0(1r)SG(0 0.DEV-0
2 0022.bde2.1579 to 0022.bde2.1580 0.1
Switch#
The following example shows what happens if a module is already stopped and you enter the hw-module module stop
command:
Switch# hw-module module 2 stop
% Module 2 stopped
Online Insertion and Removal on a WS-4500X-32
Hw Fw
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS
9
Model Serial No.
WS-C4900X-32P-10G JAE153505E9
WS-X4908X-10G-TIM JAE15340C0J
Sw Status
Ok
In Reset
Chapter 9 Configuring Interfaces