Hello all.
I have 2 routers connected using leased line.Now I am trying to put a ISDN
backup ,but the backup line does not come up.
The status of ISDN line when the serial int. is up ,is
BRI2/2 is standby mode, line protocol is down
and should change to up upon going the serial line down but it's status
remain unchanged even the serial link goes down .
I have configued the serial int with
backup interface BRI2/2
backup delay 5 10
commands . Also i tried to simulate the situation by putting the modem at
Router A off to trigger the backup ISDN call but it does not happen and the
ISDN status remain in standyby mode only.
Can anybody help whether anyadditional command needs to be put up in either
Serial or Bri interfaces?
I am giving here th configuration of both the routers,
routerA#
interface BRI2/2
description "Backup connectivity "
ip address 172.16.128.49 255.255.255.252
no ip directed-broadcast
encapsulation ppp
dialer map ip 172.16.128.50 name routerB xxxxx
dialer-group 2
isdn switch-type basic-net3
interface Serial1/3
description "Leased link to RouterB"
bandwidth 128
backup delay 5 10
backup interface BRI2/2
ip address 172.16.128.17 255.255.255.252
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
RouterB#
interface BRI1/2
description "Backup connectivity for RouterA
ip address 172.16.128.50 255.255.255.252
encapsulation ppp
no logging event subif-link-status
dialer idle-timeout 3000
dialer wait-for-carrier-time 60
dialer map ip 172.16.128.49 name routerB YYYYYYY
dialer-group 1
no fair-queue
interface Serial0/0
ip address 172.16.128.18 255.255.255.252
logging event subif-link-status
bandwidth 128
hold-queue 75 in
Thanks in advance for help
Regards
Bware
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