NX-Platform Hardware Installation and Safety
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I/O modules are hot-swappable. As long as the IPS is running TOS v3.6.0 or higher, I/O modules can be
inserted, removed, or replaced while the IPS is operational. I/O modules in other slots are not impacted,
and the IPS continues to function and inspect traffic.
Note:
Hot-swapping I/O modules during system initialization is not supported.
Important:
Hot-swapping a 40GbE I/O module with another 40GbE I/O module is fully supported.
However, a full reboot is required under the following conditions:
• If you insert a 40GbE module into a slot which previously did not have a 40GbE module
• If you remove a 40GbE module from a slot and then insert a different module type that is not another
40GbE module
I/O module hot-swapping guidelines
Provides guidelines on hot-swapping I/O modules.
When hot-swapping I/O modules, note the following administrative guidelines:
• If a slot has always been empty, all possible ports and segments on the slot are absent and unavailable.
• If a slot’s configuration is erased by the user, configuration of that slot’s ports and segments is deleted
and all possible ports and segments on the slot become absent and unavailable. However, any policy-
related configuration for these ports does not change when the bay configuration is erased and must be
manually cleaned up by the user.
• When a module is inserted into a slot or restarted, the system software performs the following
evaluation. When the IPS boots up, the evaluation is performed for every module installed in a slot:
• The module is validated.
• The status of the module (whether there is a module in the slot, what type of module it is, whether it
is being used or is in error) is determined.
• The physical state (Present or Absent) and availability state (Available or Unavailable) for each
possible port and segment on this slot is determined.
• The configuration is changed and applied as necessary.
• A syslog message is added (depending on whether the module passed validation and the module
status check).
• Removing a module from a slot does not change or reapply the configuration. It also does not change
the availability state of ports and segments. It will, however, change the physical state to Absent. An
error-level syslog message indicates that the module was removed. In addition, users are shown the
physical state when viewing configuration and status related to that slot. These changes also occur when
the IPS boots up for every empty slot.
