Configuring the ISDN protocol
To use an E1 interface as an ISDN PRI, you need to create a PRI set by bundling timeslots other than timeslots 0 and 16. Timeslot 0 is used to transmit synchronization information, and timeslot 16 is used as the D channel for signaling transmission. For each PRI set, the system generates a serial interface and a logical digital voice interface. The serial interface is named serial interface-number:15, where interface-number is the number of the E1 interface. The serial interface has the same logical characteristics as synchronous serial interfaces and can be configured with ISDN settings.
A T1 interface is used in the same way as an E1 interface, except that it has 24 timeslots and timeslot 24 is used as the D channel for signaling transmission.
For more information about the ISDN protocol, see Layer 2—WAN Configuration Guide.
To configure the ISDN protocol:
Step | Command |
|---|---|
1. Enter system view. | system-view |
2. Enter E1 or T1 interface view. | controller { e1 | t1 } number |
3. Bundle timeslots into a PRI set. | pri-set [ timeslots-list range ] |