Configuring PRI Interfaces

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When you create a primary rate interface from a channelized E1 or channelized T1 interface, you can select all the slots for the PRI, or just a few of them, leaving the rest as ds- interfaces.

To configure a primary rate interface from a channelized T1 interface, include the partition statement at the [edit interfaces ct1-pim/0/port] hierarchy level with the timeslots statement and interface-type bc specified:



[edit interfaces]
ct1-pim/0/port {

partition 1 timeslots 1-10 interface-type ds;

partition 2 timeslots 11-24 interface-type pr;
}

This configuration creates interfaces ds-pim/0/port:1 through pr-pim/0/port:2.

Use the same configuration to create interfaces on a channelized E1 interface by including the partition statement and options at the [edit interfaces ce1-pim/0/port] hierarchy level.

To configure channelized E1 interface properties, include the e1-options statement at the [edit interfaces interface-name] hierarchy level:



[edit interfaces interface-name]

e1-options {

fcs (16 | 32);

framing (g704 | g704-no-crc4
| unframed);

idle-cycle-flag (flags | ones);

loopback (local | remote);

start-end-flag (filler
| shared);
}

To specify options for each of the DS0 channels, include the ds0-options statement at the [edit interfaces interface-name] hierarchy level:



[edit interfaces interface-name]
ds0-options {

byte-encoding (nx56
| nx64);

fcs (16 | 32);

idle-cycle-flag (flags | ones);

loopback payload;

start-end-flag (filler
| shared);
}

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