RE: isdn backup

From: Brian Dennis (brian@5g.net)
Date: Mon Apr 28 2003 - 16:27:25 GMT-3


This is normal. A backup interface should be in the standby state. If
you need to also dial into the BRI while it's backing up another
interface switch to using dialer profiles.

Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
Director of CCIE Training and Development - IPexpert, Inc.
Mailto: brian@ipexpert.net
Toll Free: 866.225.8064
Outside U.S. & Canada: 312.321.6924

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Tom Young
Sent: Monday, April 28, 2003 11:29 AM
To: ccielab@groupstudy.com
Subject: isdn backup

Hi, group

 I made a isdn backup for my s0.1. The isdn is active, but
if I set the backup int b0 command, the b0 into the
standby status.And don't active forever, even I shutdown
the s0.1, maybe I couldn't use the callback in the same
time?

r5#sh dia
!
!
interface Loopback0
 ip address 137.50.50.1 255.255.255.0
!
interface Loopback10
 ip address 5.5.5.5 255.255.255.0
!
interface Ethernet0
 no ip address
 ip ospf priority 0
 shutdown
!
interface Serial0
 no ip address
 encapsulation frame-relay
 frame-relay lmi-type ansi
!
interface Serial0.1 multipoint
 bandwidth 64
 backup delay 2 2
 backup interface BRI0
 ip address 172.168.100.5 255.255.255.0
 ip ospf priority 200
 frame-relay map ip 172.168.100.3 503 broadcast
 frame-relay map ip 172.168.100.6 506 broadcast
 no frame-relay inverse-arp
!
interface Serial1
 no ip address
 encapsulation frame-relay
 no ip route-cache
 no ip mroute-cache
 frame-relay lmi-type ansi
!
interface Serial1.1 multipoint
 ip address 172.168.200.5 255.255.255.0
 no ip route-cache
 no ip mroute-cache
 frame-relay map ip 172.168.200.4 504 broadcast
 frame-relay map ip 172.168.200.8 508 broadcast
 no frame-relay inverse-arp
!
interface BRI0
 ip address 65.1.1.1 255.255.255.0
 encapsulation ppp
 ip ospf demand-circuit
 dialer map ip 65.1.1.2 name r6 class call broadcast 2002
 dialer-group 1
 isdn switch-type basic-net3
 ppp callback accept
 ppp authentication chap callin
!
router ospf 1
 log-adjacency-changes
 area 0 range 65.0.0.0 255.0.0.0
 redistribute igrp 1 metric 200 metric-type 1 subnets
 network 65.1.1.1 0.0.0.0 area 0
 network 172.168.100.5 0.0.0.0 area 0
 neighbor 172.168.100.6 priority 1
 neighbor 172.168.100.3 priority 1
 default-information originate always metric-type 1
!
router igrp 1
 timers basic 5 15 0 30
 redistribute ospf 1
 passive-interface Serial0.1
 network 172.168.0.0
 default-metric 64 100 255 1 1500
!
router bgp 5
 bgp log-neighbor-changes
 network 5.5.5.0 mask 255.255.255.0
 neighbor 172.168.100.3 remote-as 3
 neighbor 172.168.100.6 remote-as 6
 neighbor 172.168.200.4 remote-as 4
!
ip kerberos source-interface any
ip classless
no ip http server
!
!
map-class dialer call
 dialer callback-server username
dialer-list 1 protocol ip permit
!
alias exec sir sh ip route
alias exec cir clear ip route *
!
line con 0
 transport input none
line aux 0
line vty 0 4
 privilege level 15
 login
!
end

When I show the dialer , I found the interface was down.

BRI0 - dialer type = ISDN

Dial String Successes Failures Last DNIS Last
status
2002 33 1 00:06:12
successful
0 incoming call(s) have been screened.
0 incoming call(s) rejected for callback.

BRI0:1 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is shutdown

BRI0:2 - dialer type = ISDN
Idle timer (120 secs), Fast idle timer (20 secs)
Wait for carrier (30 secs), Re-enable (15 secs)
Dialer state is shutdown
r5#

Where the problem ?

Thanks alot



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