User`s guide

200 XSR User’s Guide
ISDN Configuration Chapter 9
Configuring Integrated Services Digital Network (ISDN)
Leased-Line Configuration Model
The BRI Leased Line application supports two basic modes: each B channel is
routed to a different destination or both B channels are bounded. Only one
BRI-specific command is needed for this application,
leased-line, which
can be configured at 56, 64, 112, 128, or 144 Kbps.
NOTE
Be aware that two data streams are supported, one on each B channel, at
56 and 64 Kbps only, and one data stream is supported over the bounded
B1 + B2 or B1+B2+D line at 112, 128, or 144 Kbps only.
Figure 36 illustrates how a Leased Line application is configured on the
XSR’s BRI NIM card with either PPP or Frame Relay encapsulation.
Figure 36 BRI Leased Line Application
LL
interface BRI 0/1/1
leased-line BRI 1/1 112|128|144
interface BRI 0/1/1:2
ip address 1.1.1.3
255.255.255.0
encapsulation FR
... any serial interface
command
interface BRI 0/1/1:1
ip address 1.1.1.2
255.255.255.0
encapsulation ppp
... any serial interface
command
Leased S/T or U BRI line
B2B1
IP
interface BRI 0/1/2:1
ip address 1.1.1.3 255.255.255.0
encapsulation FR
... any serial interface command
LL
Leased S/T or U BRI line
interface BRI 0/1/1
leased-line BRI 0/1/1 56 | 64
leased-line BRI 0/1/1 56 | 64