Section 3.0: ISDN Configuration
3.1. Basic ISDN
Configure ISDN as indicated.
Advertise in OSPF Area0.
Configure OSPF demand-circuit to bring up the ISDN if there is a change in the database. See Example 3-18 for ISDN working when switch1 port 2 was disabled for R1 in VLAN-12.
Example 3-18 also shows that OSPF converges when ISDN comes up and all routes are learned via BRI.
3.2. PPP Multilink
Configure PPP multilink and load threshold. See Example 3-18, where both B channels are up.
Example 3-18. ISDN with OSPF Demand-Circuit and PPP Multilink
r1#show dialer BRI0/0 - dialer type = ISDN Dial String Successes Failures Last DNIS Last status 99047132 7 0 00:00:14 successful 0 incoming call(s) have been screened. 0 incoming call(s) rejected for callback. ... |
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