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From: anadev on 8 Apr 2007 23:02
Dear all,
I am configuring a cisco 1841 modular to connect to clients' network
using ISDN basic-net3. I have done all the configuration and after I
restart the router the BRI is able to dialout using the dialer
profile, reaching to username authentication and then disconnect the
connection (as expected). However, after idle for some time, I cannot
dial out at all. I receive unfound B channel error message. I have to
reconnect the ISDN connection or do shut/noshut on the int Bri0/1/0.
then it connect and perform up to the authentication.

I need to know where to begin the troubleshooting and i have pasted
the config and error message for "unfound B channel".

I badly need help, please.

Below is the snipet of the config:



version 12.4
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname RPSPJ18
!
boot-start-marker
boot-end-marker
!
security authentication failure rate 3 log
security passwords min-length 8
logging buffered 51200 informational
enable secret 5 removed
!
no aaa new-model
!
resource policy
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
no ip source-route
ip cef
!
!
no ip dhcp use vrf connected
!
!
no ip bootp server
no ip domain lookup
ip host test 172.16.0.2
isdn switch-type basic-net3
!
username CRB password 7 removed
username rps privilege 15 removed
!
!
!
interface Null0
no ip unreachables
!
interface FastEthernet0/0
description $FW_INSIDE$
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
duplex auto
speed auto
!
interface FastEthernet0/1.1
description $ETH-LAN$
encapsulation dot1Q 1 native
ip address 192.168.0.205 255.255.255.0
no snmp trap link-status
no cdp enable
!
interface BRI0/1/0
no ip address
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
dialer pool-member 2
dialer pool-member 1
dialer pool-member 3
dialer pool-member 4
isdn switch-type basic-net3
isdn point-to-point-setup
isdn timeout-signaling
no cdp enable
ppp multilink
!
interface Async0/0/0
removed!
interface Async0/0/1
removed
!
interface Dialer1
description connected to TEST$FW_OUTSIDE$
ip address 172.16.0.1 255.255.0.0
no ip redirects
no ip unreachables
no ip proxy-arp
encapsulation ppp
no ip split-horizon
dialer pool 1
dialer remote-name TEST
dialer string 21751447
dialer hold-queue 10
dialer-group 1
snapshot client 15 360 suppress-statechange-update
no cdp enable
ppp authentication chap
!
interface Dialer2
removed!
interface Dialer3
removed
!
ip classless
!
ip http server
!
logging trap debugging
logging 10.10.10.3
access-list 20 permit 172.17.0.2
access-list 20 permit 172.20.21.100
access-list 20 deny any
dialer-list 1 protocol ip permit
no cdp run
!
control-plane

end


Below is the error message I got: can anyone help me ?
30064771072:00:51539607552: ISDN BR0/1/0 EVENT: UserIdle: callid
0x8006 received
ISDN_CALL (0x0)
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd: UserIdle: Call to
21751447 at 6
4 Kb/s
30064771072:00:51539607552: ISDN BR0/1/0 SERROR: isdn_get_guid: Cannot
allocate
a GUID (5)
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd: isdn_get_guid: Got
Guid 00004A0
4623C
30064771072:00:51539607552: ISDN BR0/1/0 EVENT: process_bri_call: call
id 0x8006
, called_number 21751447, Guid 00004A04623C speed 64, call type DATA,
bchan -1 c
lng_num none
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd: process_bri_call: No
name in GT
D
30064771072:00:51539607552: ISDN 00004A04623C Error: Invalid DSL (0)
SERROR: is
dn_get_display_text_from_gtd: false ret
30064771072:00:51539607552: ISDN 00004A04623C Error: Invalid DSL (0)
Error: Inv
alid DSL (0) SERROR: isdn_get_mlpp_from_gtd: MLPP from GTD failed
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd:
calltrkr_setup_received: isdn_i
nfo=1656107124l, call_id=0x8006 ORIGINATE
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd:
calltrkr_setup_received: calltr
acker disabled....
30064771072:00:51539607552: ISDN EVENTd: cc_clear_free_list freed
0x628B6F00
30064771072:00:51539607552: ISDN BR0/1/0 EVENT: process_rxstate: ces/
callid 1/0x
8006 calltype 1 HOST_DISCONNECT_ACK
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd:
calltrkr_call_cleared: isdn_inf
o=0x62B63074, call_id=0x8006
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd:
calltrkr_call_cleared: hndl=0l,
cause=0, Unknown cause value
30064771072:00:51539607552: ISDN BR0/1/0 **ERROR**:
host_disconnect_ack: Unfound
B-channel on Disconnect_Ack call id 0x8006.
Success rate is 0 percent (0/5)
RPSPJ18#
30064771072:00:51539607552: ISDN BR0/1/0 EVENT: UserIdle: callid
0x8006 received
ISDN_HANGUP (0x1)
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd: process_disconnect:
call id 0x8
006, call type is DATA, b_idb 0x62B61CD8, ces 1, cause Normal call
clearing(0x10
)
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd:
calltrkr_call_disconnected: isd
n_info=0x62B63074, call_id=0x8006
30064771072:00:51539607552: ISDN BR0/1/0 EVENTd: process_disconnect:
Raw Release
Message
30064771072:00:51539607552: 0502018006040802FF9008028090
30064771072:00:51539607552: ISDN BR0/1/0 **ERROR**: CCBRI_Go: NO CCB
Src->HOST c
all id 0x8006, event 0x5 ces 1
30064771072:00:51539607552: ISDN BR0/1/0 EVENT: process_rxstate: ces/
callid 1/0x
8006 calltype 1 HOST_QUERY_RESPONSE

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