70
Replacing an MPU
Prerequisites
IMPORTANT:
When a module is in unstable state, do not use the
reboot
command to trigger an active/standby
switchover. You can use the
display system stable state
command to display the system
stability and status information.
1.
If the router is configured with only one MPU, make sure all power sources to the router are
turned off before replacing the MPU.
2.
If the router is configured with two MPUs, make sure both MPUs operate correctly before
replacing any MPU.
{
As a best practice to replace the active MPU, execute the
reboot
command in the system
view of the active MPU to trigger an active and standby switchover. For more information
about the
reboot
command, see the command reference manual.
{
To replace the standby MPU, you can remove it immediately.
Replacing an RPE-X1/RPE-X3/RPE-X5/RPE-X5E MPU
The replacement procedures for the RPE-X1, RPE-X3, RPE-X5, and RPE-X5E MPUs are the same.
This example uses an RPE-X1.
To replace an RPE-X1 MPU:
1.
Determine the MPU to be removed. This section takes the MPU in slot 4 as an example.
2.
Loosen the captive screws of the MPU to be removed until all spring pressure is released.
3.
Holding the ejector levers of the MPU with both hands, pull the ejector levers outward, and
gently pull the MPU out of the slot along the slide rails.
Figure 71 Pulling the RPE-X1 MPU out of the slot
