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Thread: Guide to Replacing the SCUa Board with the SCUb Board

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    Exclamation Guide to Replacing the SCUa Board with the SCUb Board

    Guide to Replacing the SCUa Board with the SCUb Board By Running MML Commands:

    The SCUb board provides a switching capacity of 240 Gbit/s, which is much greater than
    of 60 Gbit/s SCUa and SCUb boards cannot be simultaneously installed in slots 6 and 7 of the same
    subrack.

    SCUa and SCUb boards can be simultaneously installed in two separate subracks
    or different cabinets. For example, two SCUa boards are installed in subrack 0, and two SCUb boards are installed in subrack 1.

    SCUa boards need to be replaced with SCUb boards in the following scenario:



    1. The faulty SCUa board in the Extended Processing Subrack (EPS) needs to be replaced with the SCUb board if no spare SCUa board is available.
    NOTE:
    - The SCUa board needs to be replaced with the spare SCUa board if a spare SCUa board is available.
    - The SCUa board needs to be replaced with the SCUb board only if no spare SCUa board is available.

    2. The faulty SCUa board in the Main Processing Subrack (MPS) needs to be replaced with a functional SCUa board removed from the EPS if no spare SCUa board is available. By doing so, serivces in the MPS are ensured functional first. Then, install each of the two slots holding or once holding a SCUa board in the EPS with a SCUb board.
    NOTE:
    - Two SCUa boards are installed in an MPS, and therefore the services are not affected if one SCUa board is faulty.
    - When one SCUa board in the MPS is faulty, services of the functional SCUa board are interrupted after the faulty SCUa board is replaced with a SCUb board. During the replacement, services of the entire BSC6900 are interrupted because the MPS is reset.
    - To minimize the impact on services, you need to remove a normal SCUa board from the EPS and insert it to the MPS to ensure normal services in the MPS. Then, install each of the two slots holding or once holding an SCUa board in the EPS with an SCUb board.

    3. After the BSC6900 is upgraded to BSC6900 V900R014, all SCUa boards may need to be replaced with SCUb boards to allow for stronger traffic processing capabilities of the BSC6900.

    4. Replacing SCUa boards with SCUb boards in Remote TransCoder Subrack (TCS) is the same as the method in MPS and EPS.


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    Very gooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooooood


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    Gooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooooooooooooooooooooooooooooo


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