R3303-HP 6600/HSR6600 Routers Interface Configuration Guide

40
Task Command Remarks
Display the status of a specified
T1-F interface.
display interface serial serial-number [ |
{ begin | exclude | include }
regular-expression ]
Available in any view.
Configuring a CE3 interface
E3 belongs to the digital carrier system of ITU-T. It transmits data at 34.368 Mbps and adopts HDB3 as
the line code format.
A CE3 interface operates in either E3 or CE3 (the default) mode.
• In E3 mode, a CE3 interface provides 34.368 Mbps of data bandwidth and cannot be divided into
timeslots. The system automatically creates a serial interface named serial
number/line-number/0:0 for it. This interface operates at 34.368 Mbps and is logically equivalent
to a synchronous serial interface where you can make other configurations.
• In CE3 mode, a CE3 interface can demultiplex 16 channels of E1 signals in compliance with ITU-T
G.751 and G.742. Each E1 line can be divided into 32 timeslots numbered 0 to 31, of which
timeslots 1 through 31 can be randomly bundled into N × 64 kbps logical channels. (Timeslot 0 for
framing signal transmission must not participate in bundling operation.) Therefore, CE3 can be
channelized into E1 lines or CE1 lines.
When an E1 line is working in unframed (E1) mode, the system automatically creates a serial interface
named serial number/line-number:0 for it. This interface operates at 2048 kbps and is logically
equivalent to a synchronous serial interface where you can make other configurations.
When the E1 line is working in framed (CE1) mode, you can bundle timeslots on it. The system
automatically creates a serial interface named serial number/line-number:set-number for it. This
interface operates at N × 64 kbps and is logically equivalent to a synchronous serial interface where you
can make other configurations.
CE3 interfaces support link layer protocols PPP, HDLC, and FR and network protocol IP.
Configuring a CE3 interface in E3 mode
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter CE3 interface view.
controller e3 interface-number N/A
3. Configure the interface to
operate in E3 mode.
using e3
The default operating mode is CE3
mode.
4. Configure the interface to
operate in FE3 mode and set
the DSU mode or the subrate.
fe3 { dsu-mode { 0 | 1 } | subrate
number }
Optional.
By default, DSU mode 1 (the
Kentrox mode) is adopted, and the
subrate is 34010 kbps.
5. Set other interface
parameters.
See "Configuring other CE3
interface parameters."
Optional.
Configure PPP, FR, and IP address for the CE3 interface if the network requires.