Configuring Other Ct1/Pri Interface Parameters - 3Com MSR 50 Series Configuration Manual

112 C 4: WAN I
HAPTER NTERFACE
Configuring Other
CT1/PRI Interface
Parameters
C
ONFIGURATION
For the PRI set, the system automatically creates a serial interface numbered serial
number:23. This interface is logically equivalent to an ISDN PRI interface where
you can make other configurations about:
"DCC Configuration" on page 153
■
"Configuring PPP" on page 367
■
"IP Addressing Configuration" on page 623
■
"Backup Center Configuration" on page 1961
■
primary or secondary interface for backup
"Configuring a Packet Filter Firewall" on page 1794
■
Follow these steps to configure other CT1/PRI interface parameters:
To do...
Enter system view
Enter CT1/PRI interface view
Set the line code format
Set the cable length and
attenuation
Set the clock mode
Set the framing format
Enable user data inversion
Set the line idle code type
Set the type of interframe
filling tag
Set the number of interframe
filling tags
if the interface is used as a
Use the command...
system-view
controller t1 number
code { ami | b8zs }
cable long { 0db | -7.5db |
-15db | -22.5db }
cable short { 133ft | 266ft |
399ft | 533ft | 655ft }
clock { master | slave }
frame-format { sf | esf }
data-coding { normal |
inverted }
idlecode { 7e | ff }
itf type { 7e | ff }
itf number number
Remarks
--
Required
Optional
1
The default is B8ZS .
Optional
The long 0db keyword
applies by default.
Optional
The default is slave, that is,
line clock.
Optional
The default is ESF.
Optional
Disable user data inversion.
Optional
The default is 0x7E.
Optional
The default is 0x7E.
Optional
The default is 4.