Displaying And Maintaining Ce3 Interfaces; Configuring A Ct3 Interface - HP MSR Router Series Configuration Manual

Step
11. (Optional.) Restore the default
settings for the CE3 interface.
12. Bring up the CE3 interface
and an E1 line on the
interface.
13. Return to system view.
14. Enter synchronous serial
interface view of an interface
formed by a CE3 interfaces.
15. Set the CRC mode.

Displaying and maintaining CE3 interfaces

Execute display commands in any view and reset commands in user view.
Task
Display CE3 interface information.
Display the configuration and state of a serial interface
formed on a CE3 interface.
Clear statistics for CE3 interfaces.

Configuring a CT3 interface

Both T3 and T1 belong to the T-carrier system promoted by ANSI. T3 uses the digital signal level DS-3
and operates at 44.736 Mbps.
CT3 interfaces support two operating modes: T3 (unchannelized) and CT3 (channelized).
In T3 mode, a CT3 interface is a synchronous serial interface with 44.736 Mbps of data bandwidth.
•
No timeslots are divided.
In CT3 mode, a CT3 interface can be demultiplexed into 28 channels of T1 signals. Each T1 line
•
can be divided into 24 timeslots numbered 1 through 24. Each line on a T1 interface can operate
at either 64 kbps or 56 kbps.
The following are schemes available for creating different rates of T1 lines on a CT3 interface in CT3
mode, as follows:
M × 1.536 Mbps (M is an integer in the range of 1 to 28.)
•
• N × 56 kbps or N x 64 kbps (N is an integer in the range of 1 to 300.)
A T1 line can operate in T1 or CT1 mode:
• When the T1 line is operating in unframed (T1) mode, the system automatically creates a
1544-kbps serial interface named serial number/line-number:0 for it.
Command
default
•
Bring up the CE3 interface:
undo shutdown
•
Bring up an E1 line on the CE3
interface
undo e1 line-number shutdown
quit
•
interface serial
number/line-number:0
•
interface serial
number/line-number:set-numb
er
crc { 16 | 32 | none }
Command
display controller e3 [ interface-number ]
display interface serial interface-number
reset counters controller e3 [ interface-number ]
36
Remarks
N/A
By default, a CE3 interface is up.
By default, a T1 line is up.
N/A
N/A
By default, 16-bit CRC is adopted.