Configuring Ce1/Pri Interface (In E1 Mode); Configuring Ce1/Pri Interface (In Ce1 Mode) - 3Com MSR 50 Series Configuration Manual

Configuring CE1/PRI
Interface (in E1 Mode)
Configuring CE1/PRI
Interface (in CE1 Mode)
A CE1/PRI interface in CE1/PRI mode is physically divided into 32 timeslots
numbered 0 to 31. Among them, timeslot 0 is used for transmitting synchronizing
information. This interface can be used as either a CE1 interface or a PRI interface.
When this interface is used as a CE1 interface, all the timeslots except timeslot
■
0 can be randomly divided into multiple channel sets and each set can be used
as an interface upon timeslot bundling. Its logic features are the same as those
of a synchronous serial interface. It supports link layer protocols such as PPP, FR,
LAPB and X.25, and network protocols such as IP and IPX.
When the interface is used as a PRI interface, timeslot 16 will be used as a D
■
channel to transmit signaling. Therefore, rather than selecting among all the
timeslots, you are only allowed to make a random B channel selection among
the timeslot sets except timeslots 0 and 16. The selected set of timeslots can be
bundled together with timeslot 16 to form a PRI set that can be used as an
interface. The logic features of this interface will be the same as those of an
ISDN PRI interface. It will support link layer protocol PPP and network protocols
such as IP and IPX and can be configured with parameters such as DCC.
Follow these steps to configure a CE1/PRI interface in E1 mode:
To do...
Enter system view
Enter CE1/PRI interface view
Set the interface to operate in
E1 mode
Set other interface parameters See
After you set the CE1/PRI interface to operate in E1 mode, the system
automatically creates a serial interface numbered serial interface-number:0. This
interface is logically equivalent to a synchronous serial interface where you can
make other configurations such as:
Parameters of data link protocol such as
■
"VoFR Configuration" on page
page 283
"IP Addressing Configuration" on page 623
■
"Backup Center Configuration" on page 1961
■
primary or secondary interface for backup
"NAT-PT Configuration" on page 679
■
on page 1794 if a firewall is to be set up
Follow these steps to configure a CE1/PRI interface in CE1 mode:
To do...
Enter system view
Enter CE1/PRI interface view
Use the command...
system-view
controller e1 number
using e1
"Configuring Other
CE1/PRI Interface Parameters"
on page 109.
"Configuring PPP" on page
2385, or "X.25 and LAPB Configuration" on
if the interface is used as a
and "Configuring a Packet Filter Firewall"
Use the command...
system-view
controller e1 number
CE1/PRI Interface 107
Remarks
--
Required
Required
The default operating mode is
CE1/PRI mode.
Optional
367,
Remarks
--
Required