Enterasys Gold Distributed Forwarding Engine 4G4282-49 Hardware Installation Manual page 42

Module Placement and Rules
Example 1
Shows one module installed in the chassis. If the chassis is populated with only one
4xxxxx, it must be installed in slot 1.
Rule: If only one 4xxxxx is installed in the chassis, it must be in slot 1. Always install a
4xxxxx in slot 1 of the chassis.
Example 2
Shows the chassis fully populated with 4xxxxx modules. All modules may be hot
swapped, except the module in slot 1. If the module in slot 2 is designated as a redundant
management module, the module in slot 1 may be hot swapped without shutting down
the system. The module in slot 2 can be designated using the CLI command
set license <license key>.
For information on how to use this command, refer to the Matrix DFE‐Gold Series
Configuration Guide. To access this guide on the web, refer to "Related Documents" on
page xiv.
Without a designated redundant management module in slot 2, removing the module in
slot 1 will shut down the system.
Rule: Any module in a 4xxxxx system, including the management module in slot 1, may
be hot swapped when there is a 4xxxxx module designated as a redundant management
module in slot 2.
Example 3
Shows the primary management module missing from slot 1. As long as the module
installed in slot 2 is designated as a redundant management module, the module in slot 1
can be removed without affecting system operation. However, if there is no module in
slot 1, and the system is powered down, it cannot be restarted without a module in slot 1.
Rule: You cannot power up the system completely without a module in slot 1.
Example 4
Shows a chassis populated with 4xxxxx and 7xxxxx modules. DO NOT install 4xxxxx and
7xxxxx modules in the same chassis. In a 4xxxxx system, the chassis must be dedicated to
DFE‐Gold modules only. The chassis will be rendered inoperable if any other type of
module (DFE‐Platinum or legacy modules, for example) are installed in the same chassis
with DFE‐Gold modules.
Rule: In a 4xxxxx system, the chassis must be populated with only 4xxxxx boards to
operate.
3-10 Installation
(Figure 3-6, A)
(Figure 3-6, B)
(Figure 3-6, C)
(Figure 3-6, D)