Setting Up the Backup Line
3-16 Software Configuration
7.
Enter
map-class frame-relay
<
name
> to designate this map-class and acquire Map-Class
mode.
8.
Enter
frame-relay cir out
<
bits
> to set the outgoing CIR (the default is 56000 bps). Refer to the
XSR User’s Guide
for more details.
9.
Enter
frame-relay bc out
<
bits
> to set the Burst size for this map-class. Refer to the
XSR User’s
Manual
for further directions.
10. Enter
frame-relay be out
<
rate
> to set the excess Burst site for this map-class. Refer to the
XSR
User’s Manual
for more directions.
11. Enter
interface serial
<
slot #
|
card #
|
port #
|
subinterface#
> <
point-to-point
> of the serial NIM
card to acquire Sub-interface mode, select the point-to-point connection type and begin setting
this sub-interface.
12. Enter
no shutdown
to enable the sub-interface.
13. Enter
ip address
<
xxx.xxx.xxx.xxx> <yyy.yyy.yyy.yyy>
where
x
is the IP address and
y
is the
subnet mask of this sub-interface.
14. Enter
frame-relay interface-dlci
<
16 - 1007
> to assign a Data-link Connection Identifier
(DLCI) to this sub-interface. DLCIs are provisioned by your service provider.
15. Enter
class
<
name
> to designate the map-class which will be assigned to the earlier specified
DLCI. The class name often refers to the speed of the connection such as
SlowLink
for a 64000
bps link.
16. Repeat the previous steps on the
Branch
XSR.
Remember to save your configuration after all edits. Refer to the
XSR User’s Guide
for more
information.
Setting Up the Backup Line
1.
Enter
interface dialer <
number
>
where number is the same number you entered earlier
issuing the backup interface dialer command.
2.
Enter
dialer pool <
number
>
to add a pool the dialer interface will use.
3.
Enter
dialer string <
phone number
>
to create a telephone number to be sent to the dialer.
4.
Enter
encapsulation ppp
to set the encapsulation type.
5.
Enter
ppp authentication
<
chap
[
ms-chap
] [
pap
] |
pap
[
ms-chap
] [
chap
] |
ms-chap
[
chap
] [
pap
]>
for the authentication type on the port.
6.
Enter
ip address
<
xxx.xxx.xxx.xxx> <yyy.yyy.yyy.yyy>
where
x
is the IP address and
y
is the
subnet mask of the interface.
7.
Enter
no shutdown
to keep the interface enabled.
8.
Enter
interface serial <
slot/card/port
>
of the serial card in the second NIM slot to acquire
Interface mode.
9.
Optionally
, you can set up the Console port as a
WAN
interface for dial backup purposes (refer
to the Caution below).
Caution:
Be aware that when you enable the Console port, you can no longer directly connect to
the XSR because it is in data communication mode. Your only CLI access is to Telnet to an IP
address of a configured port. Also, if your startup-config file does not set any of the ports properly
and sets up the console port as a serial port, you will no longer be able to login and will have to
press the Default button (1800 Series) to erase your configuration.
