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Cisco ASR 9001 and Cisco ASR 9001-S Routers Hardware Installation Guide
Chapter3 Installing Modules and Cables in the Chassis
Installing and Removing Modular Port Adapters
Optical Device Installation and Removal
Any contamination of the fiber connection can cause failure of the component or failure of the whole
system. A particle that partially or completely blocks the core generates strong back reflections, which
can cause instability in the laser system. Inspection, cleaning, and reinspection are critical steps to take
before making fiber-optic connections.

Cleaning Optical Devices

See the Inspection and Cleaning Procedures for Fiber-Optic Connections document for information on
cleaning optical devices.
Checking the Installation
This section describes the procedures you can use to verify the modular port adapter (MPA) installation,
and includes information on these topics:
•Verifying the Installation, page3-11
•Using show Commands to Verify Modular Port Adapter (MPA) Status, page 3-12
•Using show Commands to Display Modular Port Adapter (MPA) Information, page3-12
•Using the ping Command to Verify Network Connectivity, page 3-13

Verifying the Installation

This section describes how to verify the modular port adapter (MPA) installation by observing the MPA
LED states.
When the system has reinitialized all interfaces, the MPA STATUS LEDs should be on (green). The port
LEDs (C/A and A/L) may be on (green), depending on your connections and configuration.
To verify that a MPA is installed correctly:
Step1 Observe the console display messages and verify that the system discovers the modular line card (MLC),
while the system reinitializes each interface, thus:
•As the MPA is initialized, the STATUS LED will first be amber, indicating that power is on. When
the modular port adapter card (MPA) is active, the STATUS LED will illuminate green.
Step2 When the MPA STATUS LEDs are green, all associated interfaces are configurable.
•If a MPA is replaced with a module of the same type (as in an OIR or hardware swap), the previous
configuration is reinstated when the MPA becomes active.
•If a MPA was not previously installed in the same slot or subslot, then the configuration for all
associated interfaces is empty.
Note New interfaces are not made available until you configure them.