Troubleshooting the Installation
Available Languages
Table Of Contents
Troubleshooting the Installation
ATM Line Card Troubleshooting Information
Channelized Line Cards Troubleshooting Information
Fast Ethernet and Gigabit Ethernet Line Card Troubleshooting Information
Packet Over SONET Line Card Troubleshooting Information
Unchannelized E3/T3 Line Card Troubleshooting Information
Cleaning the Fiber-Optic Connections
Troubleshooting the Installation
This chapter describes how to troubleshoot the installation of line cards on a Cisco 10000 series router and contains the following sections:
•
ATM Line Card Troubleshooting Information
•
•
•
•
•
ATM Line Card Troubleshooting Information
Table 18-1 provides information on which symptom, possible cause, and corrective action apply to each of the ATM line cards.
Table 18-1 ATM Line Card Troubleshooting Information
ATMThe FAIL LED does not light when the line card is inserted into a slot. (The power on the line card has not turned on.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
Chassis not powered on or PRE not in chassis.
Check that the chassis power supplies are turned on and that the PRE is powered up.
The FAIL LED blinks at the rate of 10 times per second when the line card is inserted into a slot. (The line card has detected a slot parity error.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
The FAIL LED blinks at a slower rate than 10 times per second when the line card is inserted into a slot.
The line card is experiencing an error while trying to boot and is either resetting itself or being reset by the PRE.
The line card has been recognized by Cisco IOS but is experiencing an issue while running functional code.
1.
2.
3.
4.
Y
Y
Y
The FAIL LED never turns off after the line card has been inserted. (The line card is not coming up out of reset.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Cisco IOS is configured to hold the card in reset.
Verify that the slot is not being held in reset by the Cisco IOS configuration.
Defective line card.
Replace the line card.
With the optical fiber cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The optical fiber cable is not seated correctly.
Unplug and replug the optical fiber cable.
Y
—
Y
The optical fiber cable is plugged in backwards.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The optical fiber cable is dirty.
Clean the optical fiber cable on both ends. See the "Cleaning the Fiber-Optic Connections" section.
The equipment at the far end of the optical fiber cable is not operational.
Verify that the far end is enabled and actively sending a signal down the optical fiber cable.
The optical fiber cable is the incorrect type.
Use the correct type of the optical fiber cable for the line card.
Far-end optics do not match the line card optics.
Make sure the far-end optics match the line card optics.
The optical fiber cable is too long.
If the optical fiber cable being used is longer than the standards allow, use a standards-compliant length of optical fiber cable for the line card.
The optical fiber cable is too short.
If the optical fiber cable is too short, the optical receiver can be overpowered. Use an attenuator or a longer optical fiber cable to adjust the optical power seen at the Cisco 10000 line card. Be sure to calculate the optical power budget.
The optical fiber cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the optical fiber cable.
Defective. line card.
Replace the line card.
With the BNC cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The cable is not seated correctly.
Unplug and replug the cable.
—
Y
—
The cable is plugged in backward.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The equipment at the far end of the cable is not operational.
Verify that the far end is enabled and actively sending a signal down the cable.
The cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the cable.
Defective line card.
Replace the line card.
Channelized Line Cards Troubleshooting Information
Table 18-2 provides information on which symptom, possible cause, and corrective action apply to each of the Channelized line cards.
Table 18-2 Channelized Line Card Troubleshooting Information
The FAIL LED does not light when the line card is inserted into a slot. (The power on the line card has not turned on.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
Chassis not powered on or PRE not in chassis.
Check that the chassis power supplies are turned on and that the PRE is powered up.
The FAIL LED blinks at the rate of 10 times per second when the line card is inserted into a slot. (The line card has detected a slot parity error.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
The FAIL LED blinks at a slower rate than 10 times per second when the line card is inserted into a slot.
The line card is experiencing an error while trying to boot and is either resetting itself or being reset by the PRE.
The line card has been recognized by Cisco IOS but is experiencing an issue while running functional code.
1.
2.
3.
4.
Y
Y
Y
Y
Y
The FAIL LED never turns off after the line card has been inserted. (The line card is not coming up out of reset.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Cisco IOS is configured to hold the card in reset.
Verify that the slot is not being held in reset by the Cisco IOS configuration.
Defective line card.
Replace the line card.
T3 level LOOP LED is blinking.
This LED blinks on line cards that are in standby mode as part of a pair of redundant line cards.
An active line card will set these LEDs to off, unless a T3 level loopback is initiated on the port.
1.
is supposed to be in standby mode.2.
a.
b.
c.
Y
N
N
N
N
With the optical fiber cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The optical fiber cable is not seated correctly.
Unplug and replug the optical fiber cable.
Y
—
Y
—
—
The optical fiber cable is plugged in backwards.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The optical fiber cable is dirty.
Clean the optical fiber cable on both ends. See the "Cleaning the Fiber-Optic Connections" section.
The equipment at the far end of the optical fiber cable is not operational.
Verify that the far end is enabled and actively sending a signal down the optical fiber cable.
The optical fiber cable is the incorrect type.
Use the correct type of the optical fiber cable for the line card.
Far-end optics do not match the line card optics.
Make sure the far-end optics match the line card optics.
The optical fiber cable is too long.
If the optical fiber cable being used is longer than the standards allow, use a standards-compliant length of optical fiber cable for the line card.
The optical fiber cable is too short.
If the optical fiber cable is too short, the optical receiver can be overpowered. Use an attenuator or a longer optical fiber cable to adjust the optical power seen at the Cisco 10000 line card. Be sure to calculate the optical power budget.
The optical fiber cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the optical fiber cable.
Y
—
Y
—
—
Defective line card.
Replace the line card.
With the BNC cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The cable is not seated correctly.
Unplug and replug the cable.
Y
—
—
—
Y
The cable is plugged in backward.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The equipment at the far end of the cable is not operational.
Verify that the far end is enabled and actively sending a signal down the cable.
The cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the cable.
Defective line card.
Replace the line card.
With the RJ-45 cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The cable is not seated correctly.
Unplug and replug the cable.
—
Y
—
—
—
Connected to the far end with an RJ-45 straight-through connector instead of a cross-over cable.
If you are using a straight-through cable, replace it with an RJ-45 cable.
The equipment at the far end of the cable is not operational.
Verify that the far end is enabled and is actively sending a signal down the cable.
The cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the cable.
Defective line card.
Replace the line card.
Fast Ethernet and Gigabit Ethernet Line Card Troubleshooting Information
Table 18-3 provides information on which symptom, possible cause, and corrective action apply to each of the Fast Ethernet and Gigabit Ethernet line cards. Table 18-4 provides SFP module software messages shown when SFP modules are missing, incorrectly inserted, or incorrect technology SFP modules are inserted in the 1-Port Gigabit Ethernet Half-Height line card.
Table 18-3 Troubleshooting Fast Ethernet and Gigabit Ethernet Line Cards
The FAIL LED does not light when the line card is inserted into a slot.
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
Chassis not powered on or PRE not in chassis.
Check that the chassis power supplies are turned on and that the PRE is powered up.
The FAIL LED blinks at the rate of 10 times per second when the line card is inserted into a slot.
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
The FAIL LED blinks at a slower rate than 10 times per second when the line card is inserted into a slot.
The line card is experiencing an error while trying to boot and is either resetting itself or being reset by the PRE.
The line card has been recognized by Cisco IOS but is experiencing an issue while running functional code.
1.
2.
3.
4.
Y
Y
Y
The FAIL LED never turns off after the line card has been inserted. (The line card is not coming up out of reset.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Cisco IOS is configured to hold the card in reset.
Verify that the slot is not being held in reset by the Cisco IOS configuration.
Defective line card.
Replace the line card.
The FAIL LED blinks after the line card has been recognized in Cisco IOS.
The SFP module has been rejected because:
1.
2.
—
Y
—
An internal fault is detected.
Wrong type of SFP module; not a Gigabit Ethernet SFP module.
Two SFP modules with identical serial numbers are present in the system.
Not a Cisco SFP module.
Replace with a Cisco Gigabit Ethernet SFP module.
The FAIL LED blinks after the line card has been recognized in Cisco IOS.
The GBIC module has been rejected because an internal fault has been detected.
Replace with a Cisco Gigabit Ethernet GBIC module.
—
—
Y
With the cable connected and the line card configured under Cisco IOS, the LINK LED does not illuminate.
The cable is not seated correctly.
Unplug and replug the cable.
—
Y
Y
The optical fiber cable is plugged in backwards.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The GBIC module or SFP module was not fully inserted or was seated improperly.
Reinstall the GBIC module or SFP module.
The optical fiber cable is dirty.
Clean the fiber on both ends. See the "Cleaning the Fiber-Optic Connections" section.
The equipment at the far end of the optical fiber cable is not operational.
Verify that the far end is enabled and actively sending a signal down the cable.
The equipment at the far end is shut down.
Enable the far end port.
Negotiation is not configured properly.
Reconfigure negotiation on both sides.
The port is shutdown.
Enable the port.
The optical fiber cable is the incorrect type.
Use the correct type of optical fiber cable for GBIC module or SFP module installed.
Far-end optics do not match the line card optics.
Make sure the far-end optics match the optics being used on the Cisco 10000 line card.
The optical fiber cable is too long.
If the optical fiber cable is longer than the standards allow, use a standards-compliant length of optical fiber cable for the GBIC module or SFP module being used.
(continued) With the cable connected and the line card configured under Cisco IOS, the LINK LED does not illuminate.
The optical fiber cable is too short.
If the optical fiber cable is too short, the optical receiver can be overpowered. Use an attenuator or a longer optical fiber cable to adjust the optical power seen at the Cisco 10000 line card.
—
Y
Y
The optical fiber cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable and far end equipment failure. Try replacing the optical fiber cable.
Defective line card.
Replace the line card.
With the optical fiber cable connected and the line card configured under Cisco IOS, the LINK LED blinks.
The cable is not seated correctly.
Unplug and replug the optical fiber cable.
—
Y
Y
The GBIC module or SFP module is not fully inserted or is seated improperly.
Reinstall the GBIC module or SFP module.
The optical fiber cable is dirty.
Clean the optical fiber cable at both ends. See the "Cleaning the Fiber-Optic Connections" section.
The equipment at the far end is not operational.
Verify that the far end is enabled and actively sending a signal down the cable.
The equipment at the far end is shut down.
Enable the far end port.
Negotiation is not configured properly.
Reconfigure negotiation on both sides. If negotiation is configured incorrectly, the Cisco 10000 will enable and disable the laser as it attempts to negotiate with the far end.
The port is shutdown.
Enable the port.
With the optical fiber cable connected and the line card configured under Cisco IOS, the LINK LED blinks.(continued)
The optical fiber cable is the incorrect type.
Use the correct type of optical fiber cable for the type of GBIC module or SFP module installed.
—
Y
Y
The far-end optics do not match the line card optics.
Make sure the far-end optics match the optics on the line card.
The optical fiber cable is too long.
If the optical fiber cable is longer than the standards allow, use a standards-compliant length of optical fiber cable for the GBIC module or SFP module being used.
The fiber optical cable is too short.
If the optical fiber cable is too short, the optical receiver can be overpowered. Use an attenuator or a longer optical fiber cable to adjust the optical power seen at the Cisco 10000 line card.
The optical fiber cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable and far end equipment failure. Try replacing the optical fiber cable.
Defective line card
Replace the line card.
With the RJ-45 cable connected and the line card configured under Cisco IOS, the LINK LED does not illuminate.
The cable is not seated correctly.
Unplug and replug the optical fiber cable.
Y
—
—
Wrong cable used; straight-through cable rather than RJ-45 cross-over cable, or vice versa.
If you are using a straight-through cable, replace it with an RJ-45 cross-over cable. Make sure that the far end is configured correctly for the type of cable being used.
The equipment at the far end is not operational.
Verify that the far end is enabled and actively sending a signal down the cable.
Port duplex and speed settings are not configured properly.
Check the speed and duplex settings using the show interface command to be sure they match on both sides. You can set autonegotiation to full and half duplex. (Autonegotation may not be able to be set for the card on the other end, if autonegotiation is not supported on that card.)
The port is shutdown.
Enable the port.
The cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable and far-end equipment failure. Try replacing the cable.
Defective line card.
Replace the line card.
Different messages are generated in software when SFP modules are missing or are incorrect, are installed or removed from the 1-Port Gigabit Ethernet Half-Height line card. Use Table 18-4 to determine the meaning of specific messages. You can view the alarm messages using the show facility-alarm status command.
All the messages are displayed at the console automatically if console logging is configured to a level 6 or greater. The message label shows the minimum logging level necessary to view a given message: C10K_ALARM-6-INFO, for example, requires level 6 or greater.
Packet Over SONET Line Card Troubleshooting Information
Table 18-5 provides information on which symptom, possible cause, and corrective action apply to each of the Packet Over SONET line cards.
Table 18-5 Packet Over SONET Line Card Troubleshooting Information
STM-16 POSThe FAIL LED does not light when the line card is inserted into a slot. (The power on the line card has not turned on.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
Chassis not powered on or PRE not in chassis.
Check that the chassis power supplies are turned on and that the PRE is powered up.
The FAIL LED blinks at the rate of 10 times per second when the line card is inserted into a slot. (The line card has detected a slot parity error.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Defective line card.
Replace the line card.
The FAIL LED blinks at a slower rate than 10 times per second when the line card is inserted into a slot.
The line card is experiencing an error while trying to boot and is either resetting itself or being reset by the PRE.
The line card has been recognized by Cisco IOS but is experiencing an issue while running functional code.
1.
2.
3.
4.
Y
Y
Y
The FAIL LED never turns off after the line card has been inserted. (The line card is not coming up out of reset.)
The line card is not properly seated.
Be sure the ejector levers are closed and the captive screws tightened.
Y
Y
Y
Bad line card connector or bad backplane connector.
1.
2.
Cisco IOS is configured to hold the card in reset.
Verify that the slot is not being held in reset by the Cisco IOS configuration.
Defective line card.
Replace the line card.
With the optical fiber cable connected and the line card configured under Cisco IOS, the CARRIER LED does not illuminate.
The optical fiber cable is not seated correctly.
Unplug and replug the optical fiber cable.
Y
Y
Y
The optical fiber cable is plugged in backwards.
Verify that the transmit of the far end is plugged into the receive of the Cisco 10000 equipment and vice versa.
The optical fiber cable is dirty.
Clean the optical fiber cable on both ends. See the "Cleaning the Fiber-Optic Connections" section.
The equipment at the far end of the optical fiber cable is not operational.
Verify that the far end is enabled and actively sending a signal down the optical fiber cable.
The optical fiber cable is the incorrect type.
Use the correct type of the optical fiber cable for the line card.
Far-end optics do not match the line card optics.
Make sure the far-end optics match the line card optics.
The optical fiber cable is too long.
If the optical fiber cable being used is longer than the standards allow, use a standards-compliant length of optical fiber cable for the line card.
The optical fiber cable is too short.
If the optical fiber cable is too short, the optical receiver can be overpowered. Use an attenuator or a longer optical fiber cable to adjust the optical power seen at the Cisco 10000 line card. Be sure to calculate the optical power budget.
The optical fiber cable is broken.
As an experiment to isolate the failure, use a small loopback cable to connect the Cisco 10000 line card to itself. If the LED lights under this condition, continue to investigate cable or far-end equipment failure. Try replacing the optical fiber cable.
The line card is defective.
Replace the line card.
Unchannelized E3/T3 Line Card Troubleshooting Information
Table 18-6 provides information on which symptom, possible cause, and corrective action apply to the unchannelized E3/T3 line card.
Cleaning the Fiber-Optic Connections
For information about cleaning fiber-optic cable connectors and receptacles, see the Inspection and Cleaning Procedures for Fiber-Optic Connections document and the Compressed Air Cleaning Issues for Fiber-Optic Connections for more information on cleaning optical devices.
The Inspection and Cleaning Procedures for Fiber-Optic Connections document provides detailed illustrations and photos of procedures and equipment required to properly clean fiber-optic connections.
Checking Flow Control
Each line card sends egress flowbits back to the PRE. The bus interface frame contains 64,000 flowbit opportunities. If there is service degradation on a line card, use the show pxf cpu queue command to display flowbit information. The command output includes the Flowbit(period/offset) field. The period output indicates how often the flowbits repeat themselves within the frame. The offset output indicates how to find the flowbit pertaining to a particular interface on that line card.
Feedback