Cisco AS5350 Universal Gateway Chassis Installation Guide - Troubleshooting [Cisco AS5300 Series Universal Gateways]

Table Of Contents

Troubleshooting

LEDs

Monitoring Environment

Displaying Environment Status

Troubleshooting Network Interfaces

Replacing the Fan Tray

Removing the Fan Tray

Installing the Fan Tray

Getting Help

Troubleshooting

This chapter describes troubleshooting techniques for the Cisco AS5350. The chapter contains the following sections:

•LEDs

•Monitoring Environment

•Troubleshooting Network Interfaces

•Replacing the Fan Tray

•Getting Help

LEDs

The LEDs indicate the current operating condition of the Cisco AS5350. You can observe the LEDs, note any fault condition that the product is encountering, and then contact your system administrator or a customer service representative (see the "Obtaining Technical Assistance" section), if necessary. Refer to Figure 4-1 for a diagram illustrating the rear panel LEDs and Table 4-1 for a description of the LEDs.

For information about LEDs and troubleshooting on Cisco AS5350 dial feature cards, see the Cisco AS5350 Universal Gateway Card Installation Guide. This document is available on the World Wide Web and the documentation CD-ROM that comes with your universal gateway. (See the "Obtaining Documentation" section.)

Figure 4-1 Rear Panel LEDs

Table 4-1 Chassis LEDs

Function

LED

State

Description

Alarm

Alarm

On

An alarm error is detected.

Fast Ethernet

Activity (ACT)

Flickering

The Fast Ethernet LAN connection is transmitting and receiving data normally.

Off

The Fast Ethernet LAN connection is not transmitting or receiving data.

Link (LNK)

On

Fast Ethernet cable is connected properly.

Off

The Fast Ethernet port is not connected.

Console/Auxiliary

Activity (ACT)

Flickering

The console or auxiliary connection is transmitting and receiving data normally.

Off

The console or auxiliary connection is not transmitting or receiving data.

Link (LNK)

On

The console or auxiliary cable is connected properly.

Off

The console or auxiliary port is not connected.

System Board Status (Located to right of Console/Auxiliary ports)

OK

On

System board is operating normally.

Off

Power is off or system has not booted.

Blinking

A memory failure occurred.

Serial Ports

T0, T1

Flickering

Indicates data activity on the serial ports.

Off

The serial port connection is not transmitting or receiving data.

BITS Port

BITS

ON

Indicates a valid signal on the BITS port.

Monitoring Environment

The Cisco AS5350 contains temperature sensors to detect abnormal temperature conditions during system operation. The three levels of sensor detection are as follows:

•If the operating temperature of the system exceeds 45×C, the system reaches a warning state. A warning message appears on the console. When the operating temperature of the system drops below 45×C, another message is displayed on the console indicating a recovery. At this level of sensor detection, there is no disruption in system operation.

•When the operating temperature of the system continues to rise above 45×C and reaches a temperature of 60×C, the system reaches a critical state. Cisco IOS software gracefully shuts down the first DFC. If the operating temperature continues to be critical after 10 minutes, Cisco IOS software shuts down another DFC.

Note DFC slot numbering starts from the motherboard and works up from left to right. Slot 0 is reserved for the motherboard. The DFC slots are numbered sequentially from 1 to 3. (See Figure 4-2.)

Figure 4-2 Cisco AS5350 Slot Numbering

This process is repeated at 10 minute intervals until the final DFC is shut down. The console displays the slot number of the DFC and the type of DFC that was shut down.

If the operating temperature cools down to 45×C, Cisco IOS software powers on the first DFC, repeating the process for each DFC at 10 minute intervals.

•When the operating temperature of the system rises above 65×C, Cisco IOS software shuts down all DFCs immediately.

Displaying Environment Status

You can use the command-line interface (CLI) to check environment monitoring status of the Cisco AS5350.

To check environment monitoring, enter the show environment command in privileged EXEC mode, as follows:
Router# show environment
The display shown below appears on your console during normal operating conditions. The slot number corresponds to the DFC in that slot. The outlet and inlet sensors read the temperature of the air circulating inside the chassis.
Router# show environment
Temperature:
        Temperature Reading:
                Temperature at inlet is measured as 22C/71F.
                Temperature at outlet is measured as 27C/80F.
        Temperature State:
                Temperature is in normal state.
Fans:
        Fans temperature delta is measured as 5C.
        All fans are running well.
Power Supply:
Power System is present.
The display below appears on your console when the system reaches a warning state:
Router# show environment
Temperature:
        Temperature Reading:
                Temperature at inlet is measured as 52C/125F.
                Temperature at outlet is measured as 64C/147F.
        Temperature State:
                Temperature is in warning state.
Fans:
        Fans temperature delta is measured as 6C.
        All fans are running well.
Power Supply:
Power System is not present.
PS Input Voltage status: normal
PS Output Voltage status: normal
PS Fan status: normal
PS Thermal status: normal
PS OverVoltage status: normal
Environmental monitor experienced the following events:
        Temperature:sensor failed.
        Fans:monitor dropped.
        Temperature:warning.
        Temperature:sensor recovered.
        Fans:monitor recovered.
        Fans:normal.
The display below appears on your console when the system reaches a critical state:
Router# show environment
Temperature:
        Temperature Reading:
                Temperature at inlet is measured as 62C/143F.
                Temperature at outlet is measured as 74C/165F.
        Temperature State:
                Temperature is in critical state.
        DFC Busyout/Power-down:
                A DFC is powered down. Slot:1, Type:NP60 DFC
                A DFC is busyout. Slot:2, Type:T1 2 PRI DFC
                A DFC is busyout. Slot:3, Type:NP60 DFC
Fans:
        Fans temperature delta is measured as 6C.
        All fans are running well.
Power Supply:
Power System is present.
PS Input Voltage status: normal
PS Output Voltage status: normal
PS Fan status: normal
PS Thermal status: normal
PS OverVoltage status: normal
Environmental monitor experienced the following events:
        Temperature:sensor failed.
        Fans:monitor dropped.
        Temperature:warning.
        Temperature:sensor recovered.
        Fans:monitor recovered.
        Fans:normal.
        Temperature:critical.
The display below appears on your console when the system reaches a shutdown state:
Router# show environment
Temperature:
        Temperature Reading:
                Temperature at inlet is measured as 70C/158F.
                Temperature at outlet is measured as 82C/179F.
        Temperature State:
                Temperature is in shutdown state.
        DFC Busyout/Power-down:
                A DFC is powered down. Slot:1, Type:NP60 DFC
                A DFC is powered down. Slot:2, Type:T1 2 PRI DFC
                A DFC is powered down. Slot:3, Type:NP60 DFC
Fans:
        Fans temperature delta is measured as 6C.
        All fans are running well.
Power Supply:
Power System is present.
PS Input Voltage status: normal
PS Output Voltage status: normal
PS Fan status: normal
PS Thermal status: normal
PS OverVoltage status: normal
Environmental monitor experienced the following events:
        Temperature:sensor failed.
        Fans:monitor dropped.
        Temperature:warning.
        Temperature:sensor recovered.
        Fans:monitor recovered.
        Fans:normal.
        Temperature:critical.
        Temperature:shutdown.
Troubleshooting Network Interfaces

For information about isolating problems with the network connections to your Cisco AS5350, refer to the publication Internetwork Troubleshooting Guide available on the Cisco Documentation CD-ROM. For more information, see the section "Related Documentation" section.

Replacing the Fan Tray

Warning Before working on a system that has an on/off switch, turn OFF the power and unplug the power cord.To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Caution Before you remove the fan tray, read the "Safety Recommendations" section on page 21.

Removing the Fan Tray

To remove the fan tray, follow this procedure:

Step 1 Use the power switch on the chassis to power down the chassis.

Caution The fan tray is not hot swappable. You must power down the system before removing the fan tray.

Step 2 Position the chassis with the front panel facing you. (See Figure 4-3.) The front panel contains the fan tray.

Figure 4-3 Cisco AS5350 Front Panel

Step 3 Loosen the four screws securing the fan tray to the chassis. (See Figure 4-4.)

Figure 4-4 Loosen Fan Tray Screws

Step 4 Grasp the edge of the fan tray near the two end-screws and carefully pull it towards you. (See Figure 4-5.) The fan tray power connector disconnects from its receptacle. (See Figure 4-6.)

Figure 4-5 Pulling the Edge of the Fan Tray

Figure 4-6 Fan Tray Power Connector Disconnecting From Receptacle

Step 5 Slide the metal tabs located at the other end of the fan tray out of their slots. (See Figure 4-7.)

Figure 4-7 Slide Metal Tabs out of Slots

Installing the Fan Tray

To install the fan tray, follow this procedure:

Step 1 Insert the metal tabs located at the end of the fan tray into their slots. (See Figure 4-8.) Use your left hand to hold that end of the fan tray against the chassis to ensure that the metal tabs do not slip out of their slots.

Figure 4-8 Inserting the Metal Tabs into Slots

Step 2 Use your right hand to rotate the other end of the fan tray towards the front panel of the chassis. Make sure the fan tray power connector slides into the receptacle. (See Figure 4-9.)

Figure 4-9 Sliding the Fan Tray Power Connector into Receptacle

Step 3 Carefully slide the fan tray connector into its receptacle until the fan tray touches the front panel. (See Figure 4-9.)

Step 4 Tighten the four screws to secure the fan tray to the chassis. (See Figure 4-10.)

Figure 4-10 Tightening Fan Tray Screws

Getting Help

For information about technical support, onsite service, and exchange and repair services, refer to the "Obtaining Technical Assistance" section.