Cisco AS5350 and AS5400 Universal Gateway Card Installation Guide
Troubleshooting
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Troubleshooting

Table Of Contents

Troubleshooting

LEDs

Environment Monitoring

Overview

Displaying Environment Status

Using the Bantam Jacks for Test Port Functionality

Monitoring Mode for the T1, E1 and T3 DFCs

Drop and Insert Mode for the CT3 DFC

Troubleshooting Network Interfaces

Getting Help


Troubleshooting


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

LEDs

Mixing WAN DFCs

Environment Monitoring

Using the Bantam Jacks for Test Port Functionality

Troubleshooting Network Interfaces

Getting Help

LEDs

The LEDs indicate the current operating condition of the dial feature cards. Observe the LEDs (see Figure 6-1 through Figure 6-4), note any fault condition that the product is encountering, and then contact your system administrator or a customer service representative (see "Obtaining Technical Assistance" in the "Preface"), if necessary. Refer to Table 6-1 for a description of the LEDs.

Figure 6-1 2-Port or 4-Port T1 or E1 DFC LEDs

Figure 6-2 8-Port T1 or E1 DFC LEDs

Figure 6-3 T3 DFC LEDs

Figure 6-4 Universal Port DFC LEDs

Table 6-1 LEDs 

DFC
LED
State
Description

T1 or E1 DFC

ACTIVITY (ACT)

Fast flicker (Green)

Indicates DFC is up and running.

Slow flicker (Green)

Indicates DFC is not yet fully functional.

OK/MAINT

Green

The T1 or E1 DFC has passed initial power-up diagnostics tests and is operating normally.

Yellow

The T1 or E1 DFC is not functioning. See the console for messages.

Off

Indicates that all calls associated with the card are shut down and it is safe to remove the card 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.

T3 DFC

ACTIVITY (ACT)

Fast flicker

Indicates DFC is up and running.

Slow flicker

Indicates DFC is not yet fully functional.

OK/MAINT

On (Green)

The CT3 DFC passed initial power-up diagnostics tests and is operating normally.

Yellow

The CT3 DFC is not functioning. See the console for messages.

Off

Indicates that all calls associated with the DFC are shut down and it is safe to remove the card 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

Off

Remains off when operating condition is normal.

Remote Alarm (RA)

On

Indicates a T1 alarm condition encountered by software.

Off

Remains off when operating condition is normal.

Local Alarm (LA)

On

Indicates a T1 alarm condition encountered by software for a particular port.

Off

Remains off when operating condition is normal.

T3 EN/DIS

Green

Indicates a CT3 card line connection enabling normal operation.

Yellow

Normal operation is disabled.

Low signal (LOS)

On

Indicates the CT3 LIU is experiencing a loss of signal.

Off

Remains off when operating condition is normal.

Network Loop (LOOP)

On

Indicates that at least one T1 is unavailable.

Off

Remains off when operating condition is normal.

Universal Port DFC

ACTIVITY (ACT)

Flickering

There is call activity on the DFC.

OK/MAINT

On

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

Off

Indicates that all calls associated with the card are shut down and it is safe to remove the card with the system powered on.

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


Mixing WAN DFCs

The Cisco AS5350 and Cisco AS5400 support only one type of WAN DFC at a time. The DFCs that can be installed at one time are:

Up to three T1 DFCs (any combination of 2, 4, or 8-port) or

Up to three E1 DFCs (any combination of 2, 4, or 8-port) or

One CT3 DFC or

One CT3 DFC and up to two T1 DFCs (any combination of 2, 4, or 8-port)

The universal gateway software recognizes DFCs in the order of the slots they are in. For example, a DFC in slot 2 will be recognized before a DFC in slot 3. The system will recognize if there is a mix of WAN DFCs during both power up and OIR:

During power up, the first WAN DFC recognized by the system will be the only type brought up.

If there are two or more WAN DFCs of the same type and one is hot-swapped with another of a different type, the new one will not be recognized.

In both situations, an error message will appear on the console that is similar to:

00:01:12:%CARRIER-2-T1_E1_MIX:Cannot mix T1 and E1 8PRI DFC cards in chassis, do not power 
up invalid card in slot 7

Environment Monitoring

Overview

The Cisco AS5350 and Cisco AS5400 contain 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 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.

2. 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 busys out 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 system board and works up from left to right. Slot 0 is reserved for the motherboard. The DFC slots are numbered sequentially. (See Figure 6-5 and Figure 6-6.)


Figure 6-5 Slot Numbering on the Cisco AS5350 Chassis

Figure 6-6 Slot Numbering on the Cisco AS5400 Chassis

The busyout 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.

3. 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 your universal gateway.

To check environment status, enter the show environment command in privileged EXEC mode.

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:
        Redundant 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:
        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:

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: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:

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:NP108 DFC
                A DFC is powered down. Slot:2, Type:T1 8 PRI DFC
                A DFC is powered down. 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.
        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 T1, E1 and T3 DFCs

The monitor mode is available on the T1, E1 and T3 dial feature cards.

If a T1 controller does not come 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 T1, E1, and T3 DFCs. (See Figure 6-7.)

Figure 6-7 Bantam Ports

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 AS5350 and Cisco AS5400 Universal Gateway 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 T3 DFC.

The bantam jack connectors located on the front panel of the T3 DFC 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. To prevent accidental use of the push button in drop-insert mode, use the test trunk drop-insert privileged EXEC command to disable the drop-insert mode on the specified T3 controller.

The test trunk drop-insert privileged EXEC command is used to enable or disable drop-insert mode on a T3 controller. When the system initially boots up, the drop-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-insert mode by entering the test trunk drop-insert on privileged EXEC command as follows:

Router# 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 drop-insert mode after testing the T1 lines. We recommend that you disable drop-insert mode to prevent accidental use of the push button on the CT3 board.

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

Router> test trunk drop-insert off t1 port


Troubleshooting Network Interfaces

For information about isolating problems with the network connections to your universal gateway, refer to the publication Internetwork Troubleshooting Guide available on the web and on the Cisco Documentation CD-ROM that shipped with your universal gateway.

Getting Help

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