HP MSR2000/3000/4000 Router Series Interface Configuration Guide

31
Step Command Remarks
5. (Optional.) Configure the
interface description.
description text
By default, the description of an
interface is interface-name
Interface.
6. (Optional.) Configure the CE3
interface to perform BERT test,
and configure the CE3
interface to perform BERT test
on an E1 channel created on
the interface.
bert pattern { 2^7 | 2^11 | 2^15
| qrss } time number [ unframed ]
e1 line-number bert pattern { 2^11
| 2^15 | 2^20 | 2^23 | qrss }
time number [ unframed ]
By default, no BERT test is
performed.
7. (Optional.) Set the clock
mode.
• For the CE3 interface:
clock { master | slave }
• For an E1 line:
e1 line-number set clock
{ master | slave }
The default mode for both the CE3
interface and E1 line is slave,
which is line clock.
8. (Optional.) Set the national
bit.
national-bit { 0 | 1 } The default is 1.
9. (Optional.) Enable loopback.
• For the CE3 interface:
loopback { local | payload |
remote }
• For an E1 line:
e1 line-number set loopback
{ local | remote | payload }
By default, loopback is disabled.
10. Set E1 framing format on an
E1 line.
e1 line-number set frame-format
{ crc4 | no-crc4 }
The default is no-crc4.
11. (Optional.) Restore the default
settings for the CE3 interface.
default N/A
12. (Optional.) Bring up the CE3
interface.
undo shutdown
By default, a CE3 interface is up.
Use this command with caution,
because once an interface is shut
down, it stops operating.
13. Return to system view.
quit N/A
14. Enter synchronous serial
interface view of an interface
formed by a CE3 interfaces.
• interface serial
number/line-number:0
• interface serial
number/line-number:set-numb
er
N/A
15. Set the CRC mode.
crc { 16 | 32 | none } By default, 16-bit CRC is adopted.
Configure PPP, FR, and IP address for the CE3 interface if the network requires.
Displaying and maintaining CE3 interfaces
Execute display commands in any view and reset commands in user view.
Task Command
Display the state information of a CE3 interface. display controller e3 [ interface-number ]