Cisco AS5400XM Universal Gateway Chassis Installation Guide
Troubleshooting
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Troubleshooting

Table Of Contents

Troubleshooting

LEDs

Mixing WAN DFCs

Environment Monitoring

Displaying Environment Status

Using the Bantam Jacks for Test Port Functionality

Monitor 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 Cisco AS5400XM universal gateway by referring to the LEDs on the chassis and DFCs, and using the bantam jack connectors. 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 universal gateway. 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. Figure 4-1 shows the location of the LEDs. Table 4-1 describes the LEDs.

Figure 4-1 Universal Gateway Rear Panel LEDs

Table 4-1 Chassis LEDs 

LED
State
Description

Alarm

On

An alarm error has been detected.

Off

Remains off when operation is normal.

Gigabit Ethernet Activity (ACT)

Flickering

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

Gigabit Ethernet Link (LNK)

On

The Gigabit Ethernet cable is connected properly.

Off

The Ethernet LAN connection is not transmitting or receiving data. Check the Ethernet cable connections.

OK/MAINT

On

The system board is operating normally.

Off

Power is off or the system has not booted.

Blinking

A memory failure occurred.

Serial Ports Activity (ACT)

Flickering

The serial port connection is transmitting and receiving data normally.

Serial Ports Link (LNK)

On

The serial port cable is connected properly.

Off

The serial port cable is not connected properly.

BITS Port

On

Indicates a valid signal on the BITS port.

Off

Remains off when operation is normal.

Remote Alarm (RA)

On

Indicates a T1 alarm condition encountered by software.

Off

Remains off when operation is normal.

Local Alarm (LA)

On

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

Off

Remains off when operation is normal.


Mixing WAN DFCs

The Cisco AS5400XM supports only one type of WAN DFC at a time. The DFCs that can be installed at one time are:

Four T1 DFCs

Four E1 DFCs

One CT3 DFC and three T1 DFCs

The Cisco AS5400XM software recognizes DFCs in the order of the slots they are in. For example, a DFC in slot 2 is recognized before a DFC in slot 3. The system recognizes 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 is 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 is not recognized.

In both situations, an error message appears on the console that is similar to the following example:

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

To see what types of DFCs are in the chassis, use the show chassis slot command in privileged EXEC mode:

Router# show chassis slot

Slot 1:
DFC type is AS5400 T1 8 PRI DFC

OIR events:
        Number of insertions = 0, Number of removals = 0
DFC State is DFC_S_OPERATIONAL

Slot 2:
Carrier Slot is Empty

Slot 3:
Carrier Slot is Empty

Slot 4:
DFC type is AS5400 NP108 DFC

OIR events:
        Number of insertions = 0, Number of removals = 0
DFC State is DFC_S_OPERATIONAL

Slot 5:
DFC type is AS5400 Empty DFC
DFC is not powered

OIR events:
        Number of insertions = 0, Number of removals = 0

Slot 6:
Carrier Slot is Empty

Slot 7:
Carrier Slot is Empty

Environment Monitoring

The Cisco AS5400XM 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 113×F (45×C), the system reaches a warning state. A warning message appears on the console. When the operating temperature of the system drops below 113×F (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 113×F (45×C) and reaches a temperature of 140×F (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.

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.


Note DFC slot numbering starts from the system board and works up from left to right. Slot 0 is reserved for the system board. The DFC slots are numbered sequentially from 1 to 7.


If the operating temperature cools down to 113×F (45×C), Cisco IOS software powers up the first DFC, repeating the process for each DFC at 10 minute intervals.

3. When the operating temperature of the system rises above 140×F (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 AS5400XM universal gateway. To check environment monitoring 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

You can use the bantam jack connectors on the DFCs for test port functionality, as explained in the following sections.

Monitor 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 are 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 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 AS5350 and Cisco AS5400XM Universal Gateways 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 CT3 dial feature card.

The bantam jack connectors located on the front panel of the 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 and insert mode. In drop and insert mode, the T1 line is dropped out of service.


Note 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 command in privileged EXEC mode:

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 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 card.

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

Router# test trunk drop-insert off t1 port

Troubleshooting Network Interfaces

For information about isolating problems with the network connections to your universal gateway, see the Internetwork Troubleshooting Guide publication available on Cisco.com.

Getting Help

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