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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 a CE3 Interface to Work in E3 Mode

Configuring a CE3 Interface to Work in E3 Mode

When you need to connect to a transmission network using an E3 leased line with 34 Mbit/s, configure a CE3 interface to work in E3 mode.

Prerequisites

Before configuring a CE3 interface, complete the following task:

  • Register a CE3 interface card successfully.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run controller e3 interface-number

    The CE3 interface view is displayed.

  3. Run using e3

    The CE3 interface is configured to work in E3 mode.

    After the CE3 interface works in E3 mode, a serial interface is created automatically. The format of a serial interface number is serial interface-number /0:0. The parameter interface-number specifies the number of a CE3 interface. The logical features of the CE3 interface are similar to those of a synchronous serial interface. The CE3 interface can be considered as a synchronous serial interface for further configuration, such as IP address, link layer protocol parameters such as PPP and FR parameters, and NAT.

  4. Run clock { master | slave }

    The clock mode is set on the CE3 interface.

    By default, a CE3 interface works in slave clock mode.

    When the device functions as a Data Circuit-terminating Equipment (DCE), the CE3 interface of the device must work in master clock mode and provide clock signals for a Data Terminal Equipment (DTE). When the device functions as a DTE, the CE3 interface of the device must work in slave clock mode and obtain clock signals from a DCE.

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

    The interframe filling tag and the number of interframe filling tags are set.

    By default, a CE3 interface uses the interframe filling tag 0x7e and four interframe filling tags.

  6. Run fe3 { dsu-mode { 0 | 1 } | subrate number }

    The CE3 interface is configured to work in FE3 mode, and the DSU mode or subrate is set.

    By default, the DSU mode is 1, that is, Kentrox mode. The default subrate is 34010 kbit/s.

  7. Run national-bit { 0 | 1 }

    The national bit is set on the CE3 interface.

    By default, the national bit is 1 on a CE3 interface.

    You are advised to set the national bit to 1. The national bit is set to 0 on a CE3 interface only in some special situations.

Verifying the Configuration

  • Run the display controller e3 interface-number command to check the status and parameters of the CE3 interface.
  • Run the display interface serial interface-number command to check the status of and statistics about the specified serial interface.
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Updated: 2019-03-06

Document ID: EDOC1100069331

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