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Troubleshooting Switching Plane Connections to TX Matrix Plus TXP-F13 SIBs

 

Troubleshooting the TX Matrix Plus TXP-F13 and TXP-F2 SIBs

Problem:

Description:

The following alarms and LEDs indicate a problem with the SIBs:

  • On the craft interface, the red FAIL LED for a TXP-F13 SIB is on.

  • An alarm occurs as shown in Table 2.

  • An abnormal LED state occurs as shown in Table 1.

  • Command output shows the SIB is Offline.

  • The LINK LED for a TXP-F13 port is not lit, blinking yellow, steadily yellow, or steadily red.

  • The RxPWR LED for a TXP-F13 port is not lit or yellow.

  • The output for the show chassis fabric plane extensive command shows that the state of any optical switch fabric link is not Links ok.

  • The output for the show chassis fabric topology command shows that the state of any electrical switch fabric link is not OK.

Solution

To troubleshoot the TX Matrix Plus TXP-F13 and TXP-F2 SIBs:

  1. Check the LEDs. See Table 1.
  2. Issue the show chassis fabric plane extensive command. The state of each port should be Links ok.If the state of the port indicates not OK, see
    user@host> show chassis fabric plane extensive
  3. Display the system log messages to obtain information about link failures. The /var/log/messages file is a commonly configured destination for system log messages. To display it, issue the show log command. For example:
    user@host> show log messages

    For more information about system log messages, see the System Log Explorer.

    Your customer support representative can assist you with using the information in the system log, along with the supplied fiber-optic array loopback connector and adapter, to determine if you have a faulty TXP-F13 SIB, TXP-T1600 SIB, or fiber-optic array cable.

    Caution

    Do not connect and disconnect a fiber-optic array cable connector, a loopback connector, or a loopback adapter more frequently than required to perform the procedures in this hardware guide. These fiber-optic components are rated for a limited number of insertions (approximately 100).

  4. Issue the show chassis environment sib sfc 0 command.
    user@host> show chassis environment sib sfc 0

Table 1: Troubleshooting TXP-F13 SIB LEDs

Label

Color

State

Description

ACTIVE

Off

The TXP-F13 SIB is either offline or not actively passing traffic.

OK

Off

The TXP-F13 SIB is offline or not seated properly.

FAIL

Red

On steadily

The TXP-F13 SIB has failed.

LINK

Green

Blinking

The link between the TXP-F13 SIB port and the loopback connector has been established successfully.

Yellow

On steadily

The link is being established.

Blinking

The fiber-optic array cable might be connected to either the wrong TXP-T1600 SIB port or wrong TXP-FI3 SIB port.

Red

On steadily

The link between the TXP-F13 SIB port and the TXP-T1600 SIB port failed. The link either has detected errors or is not functioning normally. There might be a hardware problem, or the fiber-optic port or cable might need to be cleaned.

Off

The cable is not connected on both sides, or either the TXP-F13 SIB or TXP-T1600 SIB is powered off.

RxPWR

Yellow

On steadily

Diminished optical power is being received. The fiber-optic array cable or the TXP-F13 SIB and TXP-T1600 SIB might need cleaning, or the cable might be damaged.

Off

No optical power has been received. The fiber-optic array cable is not connected to the TXP-FI3 SIB port, or not connected to the TXP-T1600 SIB port. If the cable is connected on both sides, the cable might be cut.

The text in the column labeled ”LCD Message” appears in the display of the craft interface. The text in the column labeled “CLI Message” appears in the output from the show chassis alarms command.

Table 2: TXP-F13 SIB Alarm Messages

Alarm Type

LCD Message

CLI Message

Alarm Condition

Solution

Red

SIB sib-number Failure

SIB sib-number Fault

A TXP-F13 SIB on an active switching plane or a TXP-F2 SIB has failed.

Replace the TXP-F13 SIB or TXP-F2 SIB .

SIB sib-number Removed

SIB sib-number Absent

A TXP-F13 SIB on an active switching plane or a TXP-F2 SIB has been removed.

Reinstall the TXP-F13 SIB or TXP-F2 SIB in the chassis.

SFC: SIB F13 sib-number VCSEL fault

SFC: SIB F13 sib-number VCSEL fault

A vertical-cavity surface-emitting laser (VCSEL) has failed.

Replace the TXP-F13 SIB.

Yellow

Spare SIB Failure

Spare SIB Fault

A TXP-F13 SIB on a backup switching plane has failed.

Replace the TXP-F13 SIB.

 

Spare SIB Removed

Spare SIB Absent

A TXP-F13 SIB on a backup switching plane has been removed.

Reinstall the TXP-F13 SIB.

 

SIB sib-number config mismatch

SIB sib-number config mismatch

The TXP F13 SIB is installed in an unsupported slot.

Remove TXP F13 SIB is installed from the unsupported slot, and install in a supported slot.

 

Check SIB sib-number Fbr Bndls

SIB sib-number Fbr Bndls

Either a fiber-optic array cable is not connected or the fiber-optic array cable is not seated correctly.

Verify that the fiber-optic array cables are connected correctly.

 

Check SIB F13 sib-number VCSELs

Check SIB F13 sib-number VCSELs

A VCSEL in a TXP-F13 SIB has a low bias current condition in one of more of its channels.

To isolate the problem:

  1. Check the system log messages for CRC errors on the receiving TXP-T1600 SIB in the LCC.
  2. Issue the show chassis fabric plane extensive command for link errors on the receiving TXP-T1600 SIB in the LCC.
  3. If there are CRC errors or link errors, replace the TXP-F13 SIB.
 

SFC: SIB F13 sib-number LOL

SFC: SIB F13 sib-number LOL

A VCSEL in an F13 SIB has reported loss of optical signal (LOS).

Clean the fiber-optic cables and TXP-F13 SIB ports and TXP-T1600 SIB ports. Verify that the fiber-optic cables are connected properly.

 

SFC: SIB F13 sib-number XC Links

SFC: SIB F13 sib-number XC HSL Link Error

The TXP-F13 SIB has detected errors on the optical links to the T1600 router line-card chassis (LCC).

  1. Clean the fiber-optic array cables and ports on the TXP-F13 SIB and TXP-T1600 SIB.
  2. Verify that the fiber-optic array cables are connected correctly to the SIBs.
  3. Bring the TXP-F13 SIB and TXP-T1600 SIB online.
  4. If the problem persists, isolate the problem by methodically replacing the each fiber-optic array cable, TXP-F13 SIB, and TXP-T1600 SIB with a spare.
  5. If you are unable to isolate the problem, contact JTAC.
 

SFC: SIB F2 sib-number CLOS Links SIB F13 sib-number CLOS Links

SFC: SIB F2 sib-number CLOS HSL Link Error SIB F13 sib-number CLOS HSL Link Error

An error has occured in the link between an F2S SIB and F13 SIB.

To isolate the problem:

  1. Replace the TXP-F2 SIB with a spare.
  2. If the problem persists, replace the TXP-F13 SIB with a spare.
  3. If you are unable to isolate the problem, contact JTAC.

Troubleshooting a TXP-F13 SIB Port Using a Loopback Connector

Problem:

Description: Four fiber-optic array loopback connectors are shipped in the tool kit with the TX Matrix Plus router. Use the loopback connectors to test the TXP-F13 fiber-optic array ports.

Solution

To use the loopback connectors to test the TXP-F13 SIB ports:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Take the switching plane offline.

    See Taking a Switching Data Plane Offline in the TX Matrix Plus Router Hardware Guide.

  3. Bring the TXP-F13 SIB offline by pressing the SFC ONLINE/OFFLINE button.
  4. Remove the dust covers from the loopback connectors and from the TXP-F13 SIB ports. Temporarily store the dust covers in a dust-free resealable plastic bag.Caution

    During maintenance or replacement procedures, small deposits of oil, dust, and debris can enter the ports, the fiber-optic array cable connectors, and the loopback connectors and adapters.

  5. Align a loopback connector with each TXP-F13 SIB port, and carefully press it into the port until it stops and you hear a click. The loopback connector and port are keyed to ensure proper mating.
  6. Bring the TXP-F13 SIB online by pressing the SFC ONLINE/OFFLINE button.
  7. Verify that the RxPWR LED for that TXP-F13 SIB port is steadily lit green.
  8. If the RxPWR LED for any TXP-F13 SIB port is lit steadily yellow or is not lit , take the TXP-F13 SIB offline again, remove the loopback connector, and clean the TXP-F13 SIB port and loopback connectors. Then reconnect the loopback connectors.

    If the RxPWR LEDs for the TXP-F13 SIB ports still fail to light steadily green, contact your customer support representative for additional instructions.

  9. After you have finished testing the TXP-F13 SIB port, remove a dust cover from the dust-free resealable plastic bag. To reinstall the dust cover on the loopback connector, align the dust cover with the loopback connector, and carefully press them together until they stop. The covers and the loopback connectors are keyed to ensure proper mating. Store the loopback connectors in the dust-free resealable plastic bag.

Troubleshooting a TXP-T1600 SIB Port Using a Loopback Connector

Problem:

Description: Four fiber-optic array loopback connectors are shipped in the tool kit with the TX Matrix Plus router. Use the loopback connectors to test the TXP-T1600 SIB ports.

Solution

To use the loopback connectors to test the TXP-T1600 SIB ports:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Take the switching plane offline.

    See Taking a Switching Data Plane Offline in the TX Matrix Plus Router Hardware Guide.

  3. Bring the TXP-T1600 SIB ports offline by pressing the SFC ONLINE/OFFLINE button.
  4. Remove the dust covers from the loopback connectors and from the fiber-optic array switching plane ports. Temporarily store the dust covers in a dust-free resealable plastic bag.Caution

    During maintenance or replacement procedures, small deposits of oil, dust, and debris can enter the TXP-T1600 SIB ports, the fiber-optic array cable connectors, and the loopback connectors and adapters.

  5. Align a loopback connector with each TXP-T1600 SIB port, and carefully press it into the port until it stops and you hear a click. The loopback connector and fiber-optic array switching plane port are keyed to ensure proper mating.
  6. Bring the TXP-T1600 SIB online by pressing the SIB ONLINE/OFFLINE button.
  7. Verify that the RxPWR LED for that TXP-T1600 SIB port is steadily lit green.
  8. If the RxPWR LED for any fiber-optic array switching plane port is lit steadily yellow or is not lit , take the TXP-T1600 SIB offline again, remove the loopback connector, and clean the fiber-optic array switching plane ports and loopback connectors. Then reconnect the loopback connectors.

    If the RxPWR LEDs for the TXP-T1600 SIB ports still fail to light steadily green, contact your customer support representative for additional instructions.

  9. After you have finished testing the fiber-optic array switching plane port, remove a dust cover from the dust-free resealable plastic bag. To reinstall the dust cover on the loopback connector, align the dust cover with the loopback connector, and carefully press them together until they stop. The covers and the loopback connectors are keyed to ensure proper mating. Store the loopback connectors in the dust-free resealable plastic bag.

Troubleshooting Fiber-Optic Array Cables Using a Loopback Adapter

Problem:

Description: To test the integrity of the fiber-optic array cables, use a fiber-optic array loopback adapter (see Figure 1) that is shipped in the TX Matrix Plus tool kit

Figure 1: TX Matrix Plus Fiber-Optic Array Switching Plane Loopback Connector and Loopback Adapter
TX
Matrix Plus Fiber-Optic Array Switching Plane Loopback Connector and
Loopback Adapter
Caution

Do not connect and disconnect the fiber-optic array cable connectors, loopback connectors, or loopback adapters more frequently than required to perform the procedures in this hardware guide. These fiber-optic components are rated for a limited number of insertions (approximately 100).

Solution

To test a fiber-optic array cable:

  1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to one of the ESD points on the chassis.
  2. Remove the dust cover from the loopback adapter and the fiber-optic array cable. Store the dust covers in a dust-free resealable plastic bag.
  3. Take the switching plane offline.

    See Taking a Switching Data Plane Offline in the TX Matrix Plus Router Hardware Guide.

  4. Bring the TXP-F13 SIB offline by pressing the ONLINE/OFFLINE button for the SFC.Warning

    Do not look directly into a fiber-optic array switching plane port or a connector at the end of a fiber-optic array cable connected to a port. The optics emit laser light that can damage your eyes.

  5. Disconnect the fiber-optic array cable from the port.
  6. Install a dust cover on the fiber-optic array switching plane port.
  7. Clean the fiber-optic array cable and loopback adapter.Caution

    During maintenance or replacement procedures, small deposits of oil, dust, and debris can enter the TXP-F13 SIB and TXP-T1600 SIB fiber-optic array switching plane ports, fiber-optic array cable connectors, and loopback connectors and adapters. We recommend that you clean the optics in these components immediately before connecting them.

  8. Align the loopback adapter with the cable connector, and carefully press it into the connector until it stops. The loopback adapter and the cable connector are keyed to ensure proper mating.
  9. Bring the TXP-F13 SIB online by pressing the ONLINE/OFFLINE button for the SFC.Warning

    Do not look directly into a fiber-optic array switching plane port or a connector at the end of a fiber-optic array cable connected to a port. The fiber optics emit laser light that can damage your eyes.

  10. Verify that the RxPWR LED for the fiber-optic array switching plane port is steadily lit green.
  11. If the RxPWR LED for a fiber-optic array switching plane port is lit steadily yellow or is not lit, bring the TXP-F13 SIB offline, remove the loopback adapter, and clean it and the fiber-optic array cable. After you have cleaned the fiber-optic array cable and the loopback adapter, repeat the procedure. If the RxPWR LED for a fiber-optic array switching plane port still does not steadily light green, contact your customer support representative for additional instructions. Do not proceed with the installation of the TX Matrix Plus router until you have spoken to your customer support representative.
  12. Remove a dust cover from the dust-free resealable plastic bag and reinstall it on the loopback adapter. Align the dust cover with the loopback adapter, and carefully press them together until they stop. The cover and the loopback adapter are keyed to ensure proper mating. Store the loopback adapter in the dust-free resealable plastic bag.