comments inline ... ----- Original Message ----- From: "Iwan Hoogendoorn" To: Sent: Monday, June 09, 2003 9:39 AM Subject: Problem with backup line... [7:70386]
> Hi, > > I am having a problem with setting up a backup line with 2 ISDN routers > (2503) they are connected with a serial connection and a ISDN as backup. > > I can ping the serial ip adresses...but if i do an extended ping and lets > say i ping the interface 1000 times and disconnect the Serial cable it > should come up with the ISDN line but t does not come up. > > This is allso very strange ... > > I have RouterA and RouterB... > > When i log into the routerB and i tupe a no shutdown command on the BRI > interface i get this: > > RouterB#config t > Enter configuration commands, one per line. End with CNTL/Z. > RouterB(config)#interface bri0 > RouterB(config-if)#no shut > RouterB(config-if)# > %LINK-3-UPDOWN: Interface BRI0:1, changed state to down > %LINK-3-UPDOWN: Interface BRI0:2, changed state to down > %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from unknown , call > lasted 81 seconds > %ISDN-6-DISCONNECT: Interface BRI0:2 disconnected from unknown , call > lasted 82 seconds > %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 102 changed to down > %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 103 changed to up > It comes UP again...that is strange isnt it? when you shut bri, layer one also should be in deactivated. ISDN is not up yet. This only layer 2, which is between your router and the switch.. this is normal.. in routerB isdn line is not a back up interface also if you have interesting traffic the line (layer 3) will come up as well... If i am not missing smt i have not seen a problem here... Regards Devvvv > These are my configs for the routers: > > ############################ RouterA######################## > RouterA#sh run > Building configuration... > > Current configuration: > ! > version 11.2 > no service password-encryption > no service udp-small-servers > no service tcp-small-servers > ! > hostname RouterA > ! > enable password cisco > ! > username RouterB password 7 030752180500 > isdn switch-type basic-net3 > ! > interface Ethernet0 > ip address 195.1.1.1 255.255.255.0 > no keepalive > shutdown > ! > interface Serial0 > backup delay 5 20 > backup interface BRI0 > ip address 193.1.1.1 255.255.255.0 > encapsulation ppp > no fair-queue > clockrate 64000 > ! > interface Serial1 > no ip address > shutdown > ! > interface BRI0 > ip address 196.1.1.1 255.255.255.0 > encapsulation ppp > dialer idle-timeout 90 > dialer map ip 196.1.1.2 name RouterB broadcast 21 > dialer-group 1 > no fair-queue > ppp authentication chap > ppp multilink > ! > router rip > network 195.1.1.0 > network 193.1.1.0 > network 196.1.1.0 > ! > no ip classless > dialer-list 1 protocol ip permit > ! > line con 0 > password cisco > login > line aux 0 > line vty 0 4 > login > ! > end > > RouterA#sh ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 > E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > U - per-user static route, o - ODR > > Gateway of last resort is not set > > 193.1.1.0/24 is variably subnetted, 2 subnets, 2 masks > C 193.1.1.0/24 is directly connected, Serial0 > C 193.1.1.2/32 is directly connected, Serial0 > R 196.1.1.0/24 [120/1] via 193.1.1.2, 00:00:09, Serial0 > > > ############################# RouterB########################### > RouterB#sh run > Building configuration... > > Current configuration: > ! > version 11.2 > service timestamps debug datetime localtime > no service password-encryption > no service udp-small-servers > no service tcp-small-servers > ! > hostname RouterB > ! > enable password cisco > ! > username RouterA password 7 030752180500 > isdn switch-type basic-net3 > ! > interface Ethernet0 > ip address 197.1.1.1 255.255.255.0 > no keepalive > shutdown > ! > interface Serial0 > ip address 193.1.1.2 255.255.255.0 > encapsulation ppp > ! > interface Serial1 > no ip address > shutdown > ! > interface BRI0 > ip address 196.1.1.2 255.255.255.0 > encapsulation ppp > dialer idle-timeout 90 > dialer map ip 196.1.1.1 name RouterA broadcast 20 > dialer-group 1 > no fair-queue > ppp authentication chap > ppp multilink > ! > router rip > network 193.1.1.0 > network 197.1.1.0 > network 196.1.1.0 > ! > no ip classless > dialer-list 1 protocol ip permit > ! > line con 0 > line aux 0 > line vty 0 4 > password cisco > login > ! > end > > > RouterB#sho ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP > D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area > N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 > E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP > i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > U - per-user static route, o - ODR > > Gateway of last resort is not set > > 193.1.1.0/24 is variably subnetted, 2 subnets, 2 masks > C 193.1.1.1/32 is directly connected, Serial0 > C 193.1.1.0/24 is directly connected, Serial0 > C 196.1.1.0/24 is directly connected, BRI0 > > > Please help me with this... > > Thank You Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=70396&t=70386 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
