! Listing 4.4: Backup interface with bandwidth augmentation and shared BRI
!
!Copyright (C) 2001 by Vincent C Jones. All Rights Reserved.


version 11.2
!
hostname NewYork
!
username Chicago password Secret1
username Atlanta password Secret2
ip subnet-zero
isdn switch-type basic-ni1
!
interface Ethernet0
 ip address 10.100.0.1 255.255.0.0
!
interface Serial0
 ip address 10.0.0.1 255.255.255.252
 bandwidth 56
 backup delay 5 120
 backup interface Dialer0
 backup load 75 20
!
interface Serial1
 ip address 10.0.0.9 255.255.255.252
 backup delay 10 90
 backup interface Dialer1
!
interface BRI0
 no ip address
 encapsulation ppp
 isdn spid1 21255512120101
 isdn spid2 21255512340101
 dialer pool-member 10
 ppp authentication chap
!
interface Dialer0
 ip address 10.0.0.5 255.255.255.252
 encapsulation ppp
 bandwidth 56
 dialer remote-name Chicago
 dialer string 13125551212 class isdn56
 dialer pool 10
 dialer-group 1
 ppp authentication chap
!
interface Dialer1
 ip address 10.0.0.13 255.255.255.252
 encapsulation ppp
 bandwidth 56
 dialer remote-name Atlanta
 dialer string 14045551212 class isdn56
 dialer pool 10
 dialer-group 1
 ppp authentication chap
!
router ospf 1
 network 10.0.0.0 0.0.0.15 area 10
 network 10.100.0.0 0.0.255.255 area 10
!
ip classless
!
map-class dialer isdn56
 dialer isdn speed 56
!
dialer-list 1 protocol ip permit
!
end