3Com MSR 50 E1 unframed, Fe3, Undo e1 line-numberunframed, Related command e1 channel-set, 261

261

By default, E1 lines are up.

This command affects not only the specified E1 line but also the serial interfaces formed by E1 line bundling. Performing the e1 shutdown command on the specified E1 line shuts down all these serial interfaces. Data transmission and receiving stop as a result. Likewise, performing the undo e1 shutdown command restarts all these serial interfaces.

Example # Shut down the first E1 line on interface E3 2/0.

<Sysname> system-view

[Sysname] controller e3 2/0

[Sysname-E3 2/0] e1 1 shutdown

e1 unframed

Syntax e1 line-number unframed

undo e1 line-numberunframed

View CE3 interface view

Parameter line-number: E1 line number in the range 1 to 16.

Description Use the e1 unframed command to set an E1 line on the CE3 interface to work in unframed mode (E1 mode).

Use the undo e1 unframed command to restore the default.

By default, an E1 line operates in framed mode (CE1 mode).

An E1 line in unframed mode does not contain the frame control information; it cannot be divided into timeslots. The system automatically creates a serial interface numbered serial number/line-number:0for it. This interface operates at 2048 kbps and is logically equivalent to a synchronous serial interface on which you can make other configurations.

Related command: e1 channel-set.

Example # Set the first E1 line on interface E3 2/0 to operate in unframed mode.

<Sysname> system-view

[Sysname] controller e3 2/0

[Sysname-E3 2/0] e1 1 unframed

fe3

Syntax fe3 { dsu-mode { 0 1 } subrate number }

undo fe3 { dsu-mode subrate }