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When using backup interface, activating the backup only makes the dialer interface go from standby to active. Something else (such as an ospf hello or interesting traffic) has to initiate the call. | ISDN DDR Key Commands Shows and Debugs interface BRIO no ip address encapsulation ppp no ip mroute-cache dialer pool-member 1 isdn switch-type basic-dmslOO isdn spidl 31787618460101 8761846 isdn spid2 31787618480101 8761848 ppp authentication chap ppp multilink interface Dialer1 ip address 146.84.131.241 255.255.255.0 no ip directed-broadcast ip nat outside encapsulation ppp dialer remote-name indy-as5300 dialer idle-timeout 3600 dialer string 5547499 dialer load-threshold 25 either dialer pool 1 dialer-group 1 ppp authentication chap ppp multilink Show isdn stat Show dialer for idle timers Show int dialer X Show show int bri 0 1 or 0 2 Show snapshot Debug isdn q931 Debug isdn q921 Debug ppp nego Debug ppp authentication Debug dialer encaps failed Check dialer map Debug snapshot Debug dialer events Debug dialer packet Additional Commands Username r1 password r1pass Ppp chap hostname new host used for two dialers to same location when one dialer interface is a backup interface for IP and second is FFR for EIGRP or Appletalk Ip ospf demand-circuit for hello suppression Map-class dialer mapname Dialer isdn speed 56 Then Dialer string 5551212 class mapname Interface serial 0 Backup interface dialer 0 Backup delay 5 30 sec bef activat. sec bef teardo Backup load enable load disable load Load is 255 can also use keywork never Snapshot routing on client side Dialer map snapshot 60 5551212 Snapshot client 5 1200 spress-state-change dialer Or Snapshot client 5 1200 dialer active quiet time Server Snapshot server active time dialer Callback server dialer callback-secure dialer enable-timeout 2 ppp callback accept dialer map ip 7.1.1.8 name atlanta class dial1 555. map-class dialer dial1 dialer callback-server username on client ppp callback request Spot The Issue Notes Make sure you have BROADCAST in ALL your dialer map statements. This goes for frame-relay too Remember ip ospf demand-circuit when dealing with ospf When using backup interface activating the backup only makes
