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CLI-based Configuration Guide - Interface Management

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Configuring Line Attributes for a CPOS Interface

Configuring Line Attributes for a CPOS Interface

Context

SDH and SONET are different standards defined by different organizations, but their content and functions are similar. SDH is mainly used in Europe and China and SONET is mainly used in North America and Japan. Different device manufacturers provide different default configurations for them.

You need to configure line attributes for a CPOS interface based on the local standard.

Procedure

  • Perform the following configurations if SDH is used locally:
    1. Run system-view

      The system view is displayed.

    2. Run controller cpos cpos-number

      The specified CPOS interface view is displayed.

    3. Run frame-format sdh

      The frame format is set to SDH for the CPOS interface.

      By default, the frame format of a CPOS interface is SDH.

      NOTE:

      The frame format of the CPOS interface must be the same on both ends.

    4. Run multiplex mode { au-4 | au-3 }

      The AUG multiplexing mode is configured for the CPOS interface.

      By default, the AUG multiplexing mode of a CPOS interface is AU-4.

      NOTE:

      Choose a proper AUG multiplexing mode and ensure that the AUG multiplexing mode of the CPOS interface is the same on both ends.

    5. Run flag { c2 c2-value | { j0 | j1 } { 1byte-mode 1byte-string | 16byte-mode 16byte-string | 64byte-mode 64byte-string } | s1 s1-string }

      The overhead byte of the CPOS interface is configured.

      By default, the C2 value is 2 and the S1 value is 15.

      NOTE:

      The values of C2, J0, J1, and S1 at the receive and transmit ends must be the same; otherwise, the two ends fail to communicate.

    6. Run clock { master | slave | system }

      The clock mode is configured for the CPOS interface.

      By default, the clock mode of a CPOS interface is slave.

      NOTE:

      When CPOS interfaces are connected through optical fibers or using WDM, configure one CPOS interface to work in master clock mode and the other in slave clock mode.

    7. Run itf { number number | type { 7e | ff } }

      The interframe filling tag and the number of interframe filling tags are configured on a CPOS interface.

      By default, a CPOS interface uses the interframe filling tag 0x7e and interframe filling tags.

  • Perform the following configurations if SONET is used locally:
    1. Run system-view

      The system view is displayed.

    2. Run controller cpos cpos-number

      The specified CPOS interface view is displayed.

    3. Run flag { c2 c2-value | { j0 | j1 } { 1byte-mode 1byte-string | 16byte-mode 16byte-string | 64byte-mode 64byte-string } | s1 s1-string }clock { master | slave | system }itf { number number | type { 7e | ff } }frame-format sonet The frame format is set to SONET for the CPOS interface.

      By default, the frame format of a CPOS interface is SDH.

      NOTE:

      The frame format of the CPOS interface must be the same on both ends.

    4. Run

      The overhead byte of the CPOS interface is configured.

      By default, the C2 value is 2 and the S1 value is 15.

      NOTE:

      The values of C2, J0, J1, and S1 at the receive and transmit ends must be the same; otherwise, the two ends fail to communicate.

    5. Run

      The clock mode is configured for the CPOS interface.

      By default, the clock mode of a CPOS interface is slave.

      NOTE:

      When CPOS interfaces are connected through optical fibers or using WDM, configure one CPOS interface to work in master clock mode and the other in slave clock mode.

    6. Run

      The interframe filling tag and the number of interframe filling tags are configured on a CPOS interface.

      By default, a CPOS interface uses the interframe filling tag 0x7e and four interframe filling tags.

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Updated: 2019-03-06

Document ID: EDOC1100069331

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