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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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Setting the CRC Field Length

Setting the CRC Field Length


CRC is a commonly used method to detect transmission errors in a communication system. It checks for transmission errors by adding redundancy codes to the original data. Transmission errors are more likely to be detected when more redundancy codes are added, but data is transmitted at a lower efficiency.

Ensure that the same CCR field length is configured for both devices on the link. Otherwise, the two devices cannot be connected.


  1. Run system-view

    The system view is displayed.

  2. Run interface pos interface-number

    The POS interface view is displayed.

  3. Run crc { 16 | 32 }

    The CRC field length is configured for the POS interface

    By default, the CRC field length is 32 bits.

Updated: 2019-03-06

Document ID: EDOC1100069331

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