82
0 dribbles, 0 aborts, 0 no buffers
0 frame errors
Output:16634 packets, 201465 bytes
0 errors, 0 underruns, 0 collisions
0 deferred
As you can see, the state of interface Bri 2/0:1 is up, its speed is 128 kbps, and channels
(timeslots used) B1 and B2 are in use; the state of Bri 2/0:2 is down, and the field of timeslots
used is NULL.
Interoperating with DMS100 switches
Network requirements
As shown in Figure 22, Router D is connected to a DMS100 switch of the carrier, using the access
number of 8810148. The ISDN lines on interface BRI 1/0 are assigned the following two SPIDs and
LDNs:
• SPID1 = 31427583620101, LDN1 = 1234567
• SPID2 = 31427583870101, LDN2 = 7654321
In addition, the username and password for dialing are user and hello, respectively.
Router D needs to place an MP call on interface BRI 2/0 to obtain an address from the carrier for
accessing the Internet.
Figure 22 Network diagram
Configuration procedure
# Enable IP packet-triggered dial.
<Router> system-view
[Router] dialer-rule 1 ip permit
# Encapsulate interface BRI 2/0 with MP.
[Router] interface bri 2/0
[Router-Bri2/0] link-protocol ppp
[Router-Bri2/0] ppp mp
# Enable C-DCC.
[Router-Bri2/0] dialer enable-circular
[Router-Bri2/0] dialer-group 1
[Router-Bri2/0] dialer circular-group 1
# Configure ISDN parameters.
[Router-Bri2/0] isdn protocol-type ni
[Router-Bri2/0] isdn two-tei
[Router-Bri2/0] isdn number-property 0
[Router-Bri2/0] isdn spid1 31427583620101 1234567
[Router-Bri2/0] isdn spid2 31427583870101 7654321
[Router-Bri2/0] isdn spid service data
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