3com 3031 Instruccion De Instalación
148
C
HAPTER
14: WAN I
NTERFACE
C
ONFIGURATION
Timeslots on a CE1/PRI interface can only be bundled into one pri-set.
In the event that the timeslots on a CE1/PRI interface are bundled into a pri-set,
timeslot 16 will be used as the D channel and other timeslots (excluding timeslot 0
used for transmitting the synchronization information) will be used as B channels.
If no timeslots are specified for bundling, all the timeslots will be bundled to form
an interface similar to an ISDN PRI interface in the form of 30B+D. If only timeslot
16 is used for bundling, the bundling operation will fail.
timeslot 16 will be used as the D channel and other timeslots (excluding timeslot 0
used for transmitting the synchronization information) will be used as B channels.
If no timeslots are specified for bundling, all the timeslots will be bundled to form
an interface similar to an ISDN PRI interface in the form of 30B+D. If only timeslot
16 is used for bundling, the bundling operation will fail.
A CE1/PRI interface can be bundled into channel-sets only if it has been enabled to
work in CE1/PRI mode by using the using ce1 command.
work in CE1/PRI mode by using the using ce1 command.
Only one timeslot bundling mode can be supported on one CE1/PRI interface
during a time period, that is, the timeslots on an interface can only be bundled
into either channel-sets or a pri-set in that period.
during a time period, that is, the timeslots on an interface can only be bundled
into either channel-sets or a pri-set in that period.
After the timeslots on an interface are bundled into a pri-set, the system will
automatically create a serial interface numbered
automatically create a serial interface numbered
serial number:15
. This interface
is logically equivalent to an ISDN PRI interface, and you can further configure it.
Perform the following in the System View.
The major configuration tasks include:
■
Configure DCC operating parameters
■
Encapsulate the link layer protocol PPP and configure its authentication
parameters, etc
parameters, etc
■
Configure IP address
■
Configure the operating parameters of backup center if the interface will work
as the master interface or the standby interface of the backup center
as the master interface or the standby interface of the backup center
■
Configure address translation and packet filtering rules if a firewall should be
set up on the interface
set up on the interface
Refer to the related sections in this manual for details.
Setting line code format
CE1/PRI interfaces support two types of line code formats, namely, ami and hdb3.
Perform the following configuration in CE1/PRI interface view.
Table 174 Bundling the timeslots on the interface into a pri-set
Operation
Command
Bundle the timeslots on the CE1/PRI interface into
a pri-set
a pri-set
pri-set [ timeslot-list range ]
Remove the pri-set formed by bundling the
timeslots
timeslots
undo pri-set
Table 175 Entering the ISDN interface view
Operation
Command
Enter the ISDN PRI interface view(CE1/PRI interface)
interface serial number:15