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Verifying the Connections Between the TX Matrix TX-SIBs and T640-SIBs

 

Purpose

After you have replaced a TX-SIB or a fiber-optic array cable, verify the connections between the TX-SIBs and T640-SIBs by following this procedure:

Action

To verify the connections between the TX-SIBs and T640-SIBs:

  1. Verify that the TX-SIBs and T640-SIBs are online by issuing the show chassis sibs command:
    user@host> show chassis sibs
  2. Verify the state of the electrical and optical switch fabric links by issuing the show chassis fabric sibs command:
    user@host> show chassis fabric sibs

    Verify that the state of each link is Links ok.

  3. If the state of all TX-SIBs, T640-SIBs, and links displayed in Step 1 through Step 2 is correct, the connections between the TX-SIBs and the T640-SIBs are operating correctly. If the state is incorrect, bring the interface connected by the fiber-optic array cable offline, remove the cable, and clean the TX-SIB and T640-SIB adapters and the cable connectors plugged into them:
    • To bring the interface offline:

      • Issue the following CLI command:

        user@host> request chassis sib slot slot-number lcc lcc-number offline

        The slot number can be from 0 through 4 and corresponds to the TX-SIB chassis slot. The LCC number can be 0 through 3 and corresponds to the TX-SIB adapters labeled LCC0 through LCC3.

      • Press and hold the online/offline button next to the TX-SIB adapter until the RX LED is not lit.

      • Press and hold the online/offline button on the T640-SIB faceplate until the RX LED is not lit.

    • To remove a cable connector, partially loosen its thumbscrew and captive screw. (Use the supplied small slotted screwdriver to loosen the captive screw.) Alternate between the thumbscrew and the hex screw until the cable connector is removed from the adapter.

    • For instructions about cleaning the TX-SIB adapter, T640-SIB adapter, and fiber-optic array cable connectors, see Cleaning the TX Matrix and T640 Fiber-Optic Components Overview.

  4. Reconnect the fiber-optic array cable to the TX-SIB and T640-SIB adapters as described in Installing a TX Matrix Fiber-Optic Array Cable.
  5. Bring the interface connected by the fiber-optic array cable online:
    • Issue the following CLI command:

      user@host> request chassis sib slot slot-number lcc lcc-number online 

      The slot number can be from 0 through 4 and corresponds to the TX-SIB chassis slot. The LCC number can be 0 through 3 and corresponds to the TX-SIB adapters labeled LCC0 through LCC3.

    • Press and hold the online/offline button next to the TX-SIB adapter until the RX LED begins blinking.

    • Press and hold the online/offline button on the T640-SIB faceplate until the RX LED begins blinking.

  6. Issue the show commands as described in Step 1 through Step 2. If the state of any TX-SIB, T640-SIB, or link is incorrect, contact your customer support representative for additional instructions.