R0106-HP MSR Router Series Interface Command Reference(V7)

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payload: Enables external payload loopback.
remote: Enables external loopback.
Usage guidelines
Loopback is intended for testing only. Disable the feature when the interface is operating correctly.
The three loopback modes cannot be used simultaneously on an E1-F interface.
Examples
# Enables internal loopback on E1-F interface Serial 2/1/0.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] fe1 loopback local
fe1 timeslot-list
Use fe1 timeslot-list to bundle timeslots on an E1-F interface.
Use undo fe1 timeslot-list to restore the default.
Syntax
fe1 timeslot-list list
undo fe1 timeslot-list
Default
All the timeslots on an E1-F interface are bundled to form a 1984-kbps interface.
Views
E1-F interface view
Predefined user roles
network-admin
Parameters
timeslot-list list: Specifies a comma-separated list of timeslot items. An item can be an individual timeslot
or a timeslot range. Use a hyphen (-) to separate the start and end timeslot numbers of a range. The value
range for the list argument is 1 to 31.
Usage guidelines
Timeslot bundling results in interface rate change. For example, if you bundle timeslots 1 through 10, the
interface rate is 10 × 64 kbps.
You can create only one channel set on an E1-F interface. For the channel set, the system creates one
synchronous serial interface. The number of the serial interface is identical to the number of the E1-F
interface.
On a CE1/PRI interface, you can create multiple channel sets. For each set, the system automatically
creates a synchronous serial interface.
Timeslot 0 on E1-F interfaces is used for transmitting synchronization information. A bundling operation
only involves timeslots 1 through 31.
When the E1-F interface is operating in unframed mode, the fe1 timeslot-list command is invalid.