User guide

[edit interfaces]
e1-1/0/0 {
no-keepalives;
encapsulation cisco-hdlc;
e1-options {
loopback local;
}
unit 0 {
family inet {
address 10.100.100.1/24;
}
}
}
NOTE: To configure the CE1 loopback capability on the 16-port Channelized
E1/T1 Circuit Emulation MIC (MIC-3D-16CHE1-T1-CE), include the loopback
statement at the [edit interfaces ce1-fpc/pic/port] hierarchy level.
Related
Documentation
Configuring T1 Loopback Capability•
• Performing a Loopback Test on an Interface
Configuring E1 Start and End Flags
By default, start and end flags are shared.
To configure an E1 interface to wait two idle cycles between the start and end flags,
include the start-end-flag statement with the filler option at the [edit interfaces
interface-name e1-options] hierarchy level:
[edit interfaces interface-name e1-options]
start-end-flag filler;
To revert to the default behavior, sharing the transmission of start and end flags, include
the start-end-flag statement with the shared option at the [edit interfaces interface-name
e1-options] hierarchy level:
[edit interfaces interface-name e1-options]
start-end-flag shared;
Related
Documentation
start-end-flag on page 51•
Configuring Fractional E1 Time Slots
By default, all the time slots on an E1 interface are used. To configure the number of time
slots allocated to a fractional E1 interface, include the timeslots statement at the [edit
interfaces interface-name e1-options] hierarchy level:
[edit interfaces interface-name e1-options]
timeslots time-slot-range;
Copyright © 2014, Juniper Networks, Inc.12
E1 Interfaces Feature Guide for Routing Devices