Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System

Verifying Fabric Cabling Connections

Figure 3-5shows the faceplate of the CRS-FCC- LED panel. The CRS-FCC-LED is also called an optical interface module (OIM) LED panel. This panel goes into slot LM0 or LM1 in a fabric card chassis.The OIM LED panel provides connectivity information on how the fabric chassis cards are functioning in the multishelf system. LEDs 0 through 11 correspond to OIM 0 through OIM 11 (FM 0 through FM 11 in software). Table 3-7describes the possible states of the LEDs shown in Figure 3-5.

Table 3-7 LED Status Interpretation

LED State and

 

Color

Meaning

 

 

 

If the LED is off, it can mean:

 

The board to which the fabric cable is connected is powered off at one end or

Off

the other

 

 

The board is not present

 

The fabric cable is not connected at one end or the other.

 

 

Green

The fabric cable is properly connected at both ends, and data transmission is okay.

Yellow

The fabric cable is properly connected at both ends, but there are some data errors.

 

 

Red

The fabric cable is not connected to the correct place (when more than one fabric cable

is incorrect).

 

 

 

Blinking red

The fabric cable is not connected to the correct place (when the fabric cable is the only

or “first” such fabric cable)

 

 

 

Blinking green

The blinking LED indicates the place where the first and only incorrect fabric cable

should be connected (corresponds to the blinking red above).

 

 

 

 

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Cisco Systems Cisco IOS XR manual LED State Color Meaning, If the LED is off, it can mean