Troubleshooting

LEDs

Environment Monitoring

Displaying Environment Status

Using the Bantam Jacks for Test Port Functionality

Monitoring Mode for the 8CT1/CE1 and CT3 DFCs

Drop and Insert Mode for the CT3 DFC

Troubleshooting Network Interfaces

Getting Help

Troubleshooting

This chapter describes how to troubleshoot the access server by referring to the LEDs on the chassis and DFCs, and using bantam jacks. The chapter contains the following sections:

LEDs

Figure 6-1: Access Server Rear Panel LEDs

Figure 6-2: AS54-DFC-8CT1/CE1 LEDs

Figure 6-3: AS54-DFC-CT3 LEDs

Figure 6-4: AS54-DFC-108NP LEDs

The LEDs indicate the current operating condition of the access server. 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 if necessary. Refer to Table 6-1 for a description of the LEDs.

Table 6-1: LEDs

Chassis/Card LED State Description

Access server chassis

Alarm

On

An alarm error is detected.

Fast Ethernet

Activity (ACT)

Link (LNK)

Flickering

Off

ON

The Fast Ethernet LAN connection is transmitting and receiving data normally.
The Ethernet LAN connection is not transmitting or receiving data. Check the Ethernet cable connections.
Fast Ethernet cable is connected properly.

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

Off
On
Blinking

Power is off or system has not booted.
System Board is operating normally.
A memory failure occurred.

Serial Ports (T0, T1)

Flickering

Indicates data activity on the serial ports.

BITS Port

ON

Indicates a valid signal on the BITS port.

AS54-DFC-8CT1/CE1

Heartbeat LED

Fast Flicker (Green)

Slow flicker (Green)

Indicates DFC is up and running.

Indicates DFC is not yet fully functional.

Board OK (OK)

Board OIR Status

Green

Off

The 8 PRI T1/E1 DFC has passed initial power-up diagnostics tests and is operating normally.
Indicates that all calls associated with the board are shut down and it is safe to remove board with the system powered on.

Remote Alarm (RA), Local Alarm (LA), or Loopback (LB)

On (Yellow)

One LED below each T1/E1 port indicates one of the following:

A local or remote loopback diagnostic test is running on the associated T1 port.

An alarm is received on the associated T1/E1 port, indicating loss of signal (LOS) or loss of multiframe alignment (LOF) at the local or remote node.

AS54-DFC-CT3

Heartbeat

Fast Flicker
Slow Flicker

Indicates DFC is up and running.

Indicates DFC is not yet fully functional

DFC OK (OK)

DFC OIR Status

On (Green)

Off

The CT3 DFC passed initial power-up diagnostics tests and is operating normally.
Indicates that all calls associated with the DFC are shut down and it is safe to remove board with the system powered on

M13 Alarm (MA)

On

Indicates the presence of one of the following on the CT3 line:
Received Alarm Indication Signal (RAIS), Loss Of Signal (LOS), Receive RED Alarm (RRED), or a Far-End Receive Failure(RFERF).¹

Remote Alarm (RA)

On

Off

Indicates a T1 alarm condition encountered by software.
Remains off when operating condition is normal.

Local Alarm (LA)

On

Off

Indicates a T1 alarm condition encountered by software for a particular port.
Remains off when operating condition is normal.

T3 EN/DIS

Green

Yellow

Indicates a CT3 card line connection enabling normal operation.
Normal operation is disabled.

Low signal (LOS)

On

Indicates the CT3 LIU is experiencing a loss of signal.

Network Loop (LOOP)

On

Off

Indicates that at least one T1 is unavailable.
Remains off when operating condition is normal.

AS54-DFC-108NP

Activity (ACT)

Flickering

There is modem call activity on the DFC.

OK

On

The DFC passed the initial power-up diagnostic tests and is operating normally.

¹To display information about an M13 alarm, use the show CT3 EXEC command.

Chassis/Card	LED	State	Description
Access server chassis	Alarm	On	An alarm error is detected.
	Fast Ethernet Activity (ACT) Link (LNK)	Flickering Off ON	The Fast Ethernet LAN connection is transmitting and receiving data normally. The Ethernet LAN connection is not transmitting or receiving data. Check the Ethernet cable connections. Fast Ethernet cable is connected properly.
	System Board Status (Located to right of Console/Auxiliary ports)	Off On Blinking	Power is off or system has not booted. System Board is operating normally. A memory failure occurred.
	Serial Ports (T0, T1)	Flickering	Indicates data activity on the serial ports.
	BITS Port	ON	Indicates a valid signal on the BITS port.
AS54-DFC-8CT1/CE1	Heartbeat LED	Fast Flicker (Green) Slow flicker (Green)	Indicates DFC is up and running. Indicates DFC is not yet fully functional.
	Board OK (OK) Board OIR Status	Green Off	The 8 PRI T1/E1 DFC has passed initial power-up diagnostics tests and is operating normally. Indicates that all calls associated with the board are shut down and it is safe to remove board with the system powered on.
	Remote Alarm (RA), Local Alarm (LA), or Loopback (LB)	On (Yellow)	One LED below each T1/E1 port indicates one of the following: A local or remote loopback diagnostic test is running on the associated T1 port. An alarm is received on the associated T1/E1 port, indicating loss of signal (LOS) or loss of multiframe alignment (LOF) at the local or remote node.
AS54-DFC-CT3	Heartbeat	Fast Flicker Slow Flicker	Indicates DFC is up and running. Indicates DFC is not yet fully functional
	DFC OK (OK) DFC OIR Status	On (Green) Off	The CT3 DFC passed initial power-up diagnostics tests and is operating normally. Indicates that all calls associated with the DFC are shut down and it is safe to remove board with the system powered on
	M13 Alarm (MA)	On	Indicates the presence of one of the following on the CT3 line: Received Alarm Indication Signal (RAIS), Loss Of Signal (LOS), Receive RED Alarm (RRED), or a Far-End Receive Failure(RFERF).¹
	Remote Alarm (RA)	On Off	Indicates a T1 alarm condition encountered by software. Remains off when operating condition is normal.
	Local Alarm (LA)	On Off	Indicates a T1 alarm condition encountered by software for a particular port. Remains off when operating condition is normal.
	T3 EN/DIS	Green Yellow	Indicates a CT3 card line connection enabling normal operation. Normal operation is disabled.
	Low signal (LOS)	On	Indicates the CT3 LIU is experiencing a loss of signal.
	Network Loop (LOOP)	On Off	Indicates that at least one T1 is unavailable. Remains off when operating condition is normal.
AS54-DFC-108NP	Activity (ACT)	Flickering	There is modem call activity on the DFC.
	OK	On	The DFC passed the initial power-up diagnostic tests and is operating normally.

Environment Monitoring

The Cisco AS5400 contains temperature sensors to detect abnormal temperature conditions during system operation. The three levels of sensor detection are as follows:

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

2. When the operating temperature of the system continues to rise above 45º C and reaches a temperature of 60º C, the system reaches a critical state.

: Cisco IOS software busysout the DFCs in the chassis and 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 7.

: 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 45º C, Cisco IOS software powers on the first DFC, repeating the process for each DFC at 10 minute intervals.

3. When the operating temperature of the system rises above 65º 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 AS5400.

To check environment monitoring status, follow the step below:

Note The screen displays in this section are for reference only and might not exactly reflect the messages on your console.

Step 1 Enter the show environment privileged Exec command as follows:

5400> 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.

5400> 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:
        Redundant Power System is present.

The display below appears on your console when the system reaches a warning state.

5400> 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:
        Redundant Power System is present.
        RPS Input Voltage status: normal
        RPS Output Voltage status: normal
        RPS Fan status: normal
        RPS Thermal status: normal
        RPS 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:

5400> 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:NP108 DFC
                A DFC is busyout. Slot:2, Type:T1 8 PRI DFC
                A DFC is busyout. Slot:3, Type:NP108 DFC
Fans:
        Fans temperature delta is measured as 6C.
        All fans are running well.
Power Supply:
        Redundant Power System is present.
        RPS Input Voltage status: normal
        RPS Output Voltage status: normal
        RPS Fan status: normal
        RPS Thermal status: normal
        RPS 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.

5400> 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:NP108 DFC
                A DFC is powered down. Slot:2, Type:T1 8 PRI DFC
Fans:
        Fans temperature delta is measured as 6C.
        All fans are running well.
Power Supply:
        Redundant Power System is present.
        RPS Input Voltage status: normal
        RPS Output Voltage status: normal
        RPS Fan status: normal
        RPS Thermal status: normal
        RPS 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.

Using the Bantam Jacks for Test Port Functionality

Test port functionality is supported by Cisco IOS Release 12.1(2)XD and later releases.

Monitoring Mode for the 8CT1/CE1 and CT3 DFCs

The monitor mode is available on the AS54-DFC-8CT1/CE1 and AS54-DFC-CT3 cards.

If a T1 controller does not go up, or there is a large number of errors associated with a particular controller, you might be able to determine whether the problem is in the DFC or in an external T1 line by using the test port. The test port is a set of bantam jack connectors located on the front panel of the 8PRI and CT3 DFCs.

In monitor mode, you can monitor only the ingress side of the T1 line without disrupting that line.

The bantam jack connectors located on the front panel of the DFCs allow the connection of an external test device (for example, a FIREBERD test device) to monitor the individual T1 circuit in monitor mode. Use software commands to select a T1 line. For information on software commands, see the Cisco AS5400 Universal Access Server Software Configuration Guide for details.

Passive monitoring equipment is used to listen on the TX MON and RX MON jacks during regular operation to detect T1 errors.

Connecting test equipment to the following bantam jack connectors provides various functions:

TX MON can monitor signals coming out of the test port without interrupting normal data transmission.
RX MON can monitor signals going in to the test port without interrupting normal data transmission.

Drop and Insert Mode for the CT3 DFC

Drop and Insert mode is available on the AS54-DFC-CT3 card.

The bantam jack connectors located on the front panel AS54-DFC-CT3 card allow the connection of an external test device (for example, a FIREBERD test device) to test any of the 28 individual T1 circuits in drop-insert mode. In drop-insert mode, the T1 line is dropped out of service.

In Drop and Insert mode, the T1 line is dropped out of service. To prevent accidental use of the push button in Drop and Insert mode, use the test trunk drop-insert privileged EXEC command to disable the Drop and Insert mode on the specified T3 controller.

The test trunk drop-insert privileged EXEC command is used to enable or disable Drop and Insert mode on a T3 controller. When the system initially boots up, the Drop and Insert mode is disabled on all T3 controllers.

To drop a particular T1 line to the test port, follow these steps:

Step 1 Enable Drop and Insert mode by entering the test trunk drop-insert on privileged EXEC command as follows:

5400# test trunk drop-insert on t1port

Note The t1 port is the particular T1 line that you wish to drop. T1 port numbers range from 1 to 28.

Step 2 Disable the Drop and Insert mode after testing the T1 lines. We recommend that you disable Drop and Insert mode to prevent accidental use of the push button on the CT3 board.

To disable Drop and Insert mode, enter the test trunk drop-insert off privileged EXEC command as follows:

5400> test trunk drop-insert off t1 port

Troubleshooting Network Interfaces

For information about isolating problems with the network connections to your access server, refer to the publication Internetwork Troubleshooting Guide available on the Cisco Documentation CD-ROM that shipped with the Cisco AS5400.

Getting Help

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

Table of Contents

Troubleshooting