R0106-HP MSR Router Series Interface Configuration Guide(V7)

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For the PRI set, the system automatically creates a serial interface numbered serial number:23. This
interface has the same logical features as an ISDN PRI interface and supports the following
configurations:
• DDR.
• PPP and PPP authentication.
• IP addressing.
• Interface backup settings if the interface is used as a primary or backup interface.
• Firewall.
Configuring other CT1/PRI interface parameters
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter CT1/PRI interface view.
controller t1 number N/A
3. Configure the interface
description.
description text
By default, the description of an
interface is interface-name
Interface.
4. Set the cable length and
attenuation.
cable long { 0db | -7.5db | -15db
| -22.5db }
cable short { 133ft | 266ft | 399ft
| 533ft | 655ft }
The long 0db keyword applies by
default.
5. Set the line code format.
code { ami | b8zs } The default is B8ZS.
6. Enable user data inversion.
data-coding { normal | inverted }
By default, user data inversion is
disabled.
7. Set the clock mode.
clock { master | slave }
The default is slave, which is line
clock.
8. Set the framing format.
frame-format { sf | esf } The default is ESF.
9. Set the line idle code type.
Idle-code { 7e | ff } The default is 0x7E.
10. Set the type and the number of
interframe filling tags.
itf { number number | type { 7e |
ff } }
By default:
• The type of the interframe filling
tag is 0x7E.
• The number of interframe filling
tags is four.
11. Set the number of interframe
filling tags.
itf number number The default is four.
12. Set the behavior of the
interface on the FDL in ESF
framing.
fdl { ansi | att | both | none }
The default is none, meaning that
FDL is forbidden.
13. Enable loopback.
loopback { local | payload |
remote }
By default, loopback is disabled.
14. Send remote loopback control
code.
sendloopcode { fdl-ansi-llb-down |
fdl-ansi-llb-up | fdl-ansi-plb-down
| fdl-ansi-plb-up |
fdl-att-plb-down | fdl-att-plb-up |
inband-llb-down | inband-llb-up }
By default, no remote loopback
control code is sent.