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Configure T1 Interfaces

T1 is the basic physical layer protocol used by the Digital Signal level 1(DS-1) multiplexing method in North America. A T1 interface operates at a bit rate of 1.544 Mbps and can support 24 DS-0 channels. Supported DS-1 standards include:

To configure T1-specific physical interface properties, include the t1-options statement at the [edit interfaces interface-name] hierarchy level: 

[edit interfaces interface-name]

t1-options { 

    bert-algorithm algorithm;

    bert-error-rate rate;

    bert-period seconds;

    buildout (0-132 | 133-265 | 266-398 | 399-531 | 532-655);

    byte-encoding (nx64 | nx56);

    fcs (32 | 16);

    framing (sf | esf);

    idle-cycle-flag (flags | ones); 

    invert-data;

    line-encoding (ami | b8zs);

    loopback (local | payload | remote); 

    remote-loopback-respond;

    start-end-flag (shared | filler); 

    timeslots time-slot-range;

}

You can configure the following T1 interface-specific properties:

See also the following properties, which apply to a number of different interfaces:

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