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ISDN Drops Calls?? Capture attached

Hello everyone, we are tryint to setup an ISDN connection and are running into problems.  We are using a Cisco 1600 (1604?) to do this.  The connection is to qwest.net

The call gets connected and we are able to pass traffic to the Internet... however after a about 2-3 minutes the channels will drop and then connect back up again.  This occurs while we are sending continous traffic out to the internet.

Cisco Config on our end:

ip subnet-zero
isdn switch-type basic-ni
!
!
!
interface Ethernet0
 ip address (OMITTED)
 no ip directed-broadcast
!
interface BRI0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 dialer rotary-group 0
 dialer-group 1
 isdn switch-type basic-ni
 isdn spid1 (OMITTED)
 isdn spid2 (OMITTED)
!
interface Dialer0
 ip address negotiated
 no ip directed-broadcast
 encapsulation ppp
 dialer in-band
 dialer idle-timeout 432000
 dialer string (OMITTED)
 dialer hold-queue 10
 dialer load-threshold 2 either
 dialer-group 1
 ppp authentication chap callin
 ppp chap hostname (OMITTED)
 ppp chap password (OMITTED)
 ppp pap (OMITTED)
 ppp multilink
!
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
!
dialer-list 1 protocol ip permit
!
line con 0
 transport input none
line vty 0 4
 login local
!
end

_____________________________

Debug Info:


00:34:09: ISDN BR0: Could not bring up interface
00:34:09: ISDN BR0: Shutting down ISDN Layer 3
00:34:11: ISDN BR0: Outgoing call id = 0x8032
00:34:11: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:34:11: ISDN BR0: Activating
00:34:16:  isdn_Call_disconnect()

00:34:16:  isdn_Call_disconnect()

00:34:16: ISDN BR0: Physical layer is IF_DOWN
00:34:16: ISDN BR0: Could not bring up interface
00:34:16: ISDN BR0: Shutting down ISDN Layer 3
00:34:16: ISDN BR0: Shutting down ME
00:34:16: ISDN BR0: Shutting down ISDN Layer 3
00:34:17: ISDN BR0: Outgoing call id = 0x8033
00:34:17: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:34:17: ISDN BR0: Activating
00:34:20: ISDN BR0: L1 is IF_ACTIVE
00:34:20: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 88
00:34:20: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 88
00:34:21: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 88
00:34:22: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 88
00:34:23: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 88 changed to down
00:34:23: ISDN BR0: TX ->  IDVER  ri = 0  ai = 88
00:34:23: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x8033
00:34:23: ISDN BR0: Error: Unexpected Disconnect_Ack - call id 0x8033
00:34:23: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x0
00:34:23: ISDN BR0: Error: Unexpected Disconnect_Ack - call id 0x0
00:34:25: ISDN BR0: TX ->  IDVER  ri = 0  ai = 88
00:34:27: ISDN BR0: TX ->  IDVER  ri = 0  ai = 88
00:34:29: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 88
00:34:29: ISDN BR0: RX <-  IDREM  ri = 0  ai = 88
00:34:29: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 88 changed to down00:34:29: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 88 changed to down
00:34:29: ISDN BR0: TX ->  IDREQ  ri = 21166  ai = 127
00:34:29: ISDN BR0: RX <-  IDASSN  ri = 21166  ai = 104
00:34:29: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:34:29: ISDN BR0: RX <-  UAf sapi = 0  tei = 104
00:34:29: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 104 changed to up
00:34:29: ISDN BR0: TX ->  INFOc sapi = 0  tei = 104  ns = 0  nr = 0  i = 0x08007B3A0E3531353236333237323131313131
00:34:29: ISDN BR0: RX <-  RRr sapi = 0  tei = 104  nr = 1
00:34:29: ISDN BR0: RX <-  INFOc sapi = 0  tei = 104  ns = 0  nr = 1  i = 0x08007B3B02808B
00:34:29: ISDN BR0: TX ->  RRr sapi = 0  tei = 104  nr = 1
00:34:29: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 97
00:34:30: ISDN BR0: RX <-  INFOc sapi = 0  tei = 104  ns = 1  nr = 1  i = 0x08007B952A0480800150
00:34:30: ISDN BR0: RX <-  IDREM  ri = 0  ai = 97
00:34:30: ISDN BR0: TX ->  RRr sapi = 0  tei = 104  nr = 2
00:34:30: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 97 changed to down00:34:30: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 97 changed to down
00:34:30: ISDN BR0: TX ->  IDREQ  ri = 32143  ai = 127
00:34:30: ISDN BR0: RX <-  IDASSN  ri = 32143  ai = 113
00:34:30: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 113
00:34:30: ISDN BR0: RX <-  UAf sapi = 0  tei = 113
00:34:30: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 113 changed to up
00:34:30: ISDN BR0: TX ->  INFOc sapi = 0  tei = 113  ns = 0  nr = 0  i = 0x08007B3A0E3531353236333337313931313131
00:34:30: ISDN BR0: RX <-  RRr sapi = 0  tei = 113  nr = 1
00:34:30: ISDN BR0: RX <-  INFOc sapi = 0  tei = 113  ns = 0  nr = 1  i = 0x08007B3B02818B
00:34:30: ISDN BR0: TX ->  RRr sapi = 0  tei = 113  nr = 1
00:34:30: ISDN BR0: RX <-  INFOc sapi = 0  tei = 113  ns = 1  nr = 1  i = 0x08007B952A0480800150
00:34:30: ISDN BR0: TX ->  RRr sapi = 0  tei = 113  nr = 2
00:34:33:  isdn_Call_disconnect()
00:34:33:  isdn_Call_disconnect()

00:34:33: ISDN BR0: Physical layer is IF_DOWN
00:34:33: ISDN BR0: Shutting down ME
00:34:33: ISDN BR0: Shutting down ISDN Layer 3
00:34:33: ISDN BR0: Outgoing call id = 0x8034
00:34:33: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:34:33: ISDN BR0: Activating
00:34:41: ISDN BR0: Could not bring up interface
00:34:41: ISDN BR0: Shutting down ISDN Layer 3
00:34:41: ISDN BR0: Outgoing call id = 0x8035
00:34:41: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:34:42: ISDN BR0: Activating
00:34:49:  isdn_Call_disconnect()

00:34:49:  isdn_Call_disconnect()

00:34:49: ISDN BR0: Physical layer is IF_DOWN
00:34:49: ISDN BR0: Could not bring up interface
00:34:49: ISDN BR0: Shutting down ISDN Layer 3
00:34:49: ISDN BR0: Shutting down ME
00:34:49: ISDN BR0: Shutting down ISDN Layer 3
00:34:52: ISDN BR0: Outgoing call id = 0x8036
00:34:52: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:34:52: ISDN BR0: Activating
00:34:55: ISDN BR0: L1 is IF_ACTIVE
00:34:55: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:34:55: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:34:56: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:34:57: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:34:58: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 104 changed to down00:34:58: ISDN BR0: TX ->  IDVER  ri = 0  ai = 104
00:34:58: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x8036
00:34:58: ISDN BR0: Error: Unexpected Disconnect_Ack - call id 0x8036
00:34:58: ISDN BR0: received HOST_DISCONNECT_ACK call_id 0x0
00:34:58: ISDN BR0: Error: Unexpected Disconnect_Ack - call id 0x0
00:35:00: ISDN BR0: TX ->  IDVER  ri = 0  ai = 104
00:35:02: ISDN BR0: TX ->  IDVER  ri = 0  ai = 104
00:35:04: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 104
00:35:04: ISDN BR0: RX <-  IDREM  ri = 0  ai = 104
00:35:04: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 104 changed to down
00:35:04: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 104 changed to down00:35:04: ISDN BR0: TX ->  IDREQ  ri = 22144  ai = 127
00:35:04: ISDN BR0: RX <-  IDASSN  ri = 22144  ai = 64
00:35:05: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 64
00:35:05: ISDN BR0: RX <-  UAf sapi = 0  tei = 64
00:35:05: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 64 changed to up
00:35:05: ISDN BR0: TX ->  INFOc sapi = 0  tei = 64  ns = 0  nr = 0  i = 0x08007B3A0E3531353236333237323131313131
00:35:05: ISDN BR0: RX <-  RRr sapi = 0  tei = 64  nr = 1
00:35:05: ISDN BR0: RX <-  INFOc sapi = 0  tei = 64  ns = 0  nr = 1  i = 0x08007B3B02808B
00:35:05: ISDN BR0: TX ->  RRr sapi = 0  tei = 64  nr = 1
00:35:05: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 113
00:35:05: ISDN BR0: RX <-  IDREM  ri = 0  ai = 113
00:35:05: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BRI0, TEI 113 changed to down
00:35:05: %ISDN-6-LAYER2DOWN: Layer 2 for Interface BR0, TEI 113 changed to down00:35:05: ISDN BR0: TX ->  IDREQ  ri = 48769  ai = 127
00:35:05: ISDN BR0: RX <-  INFOc sapi = 0  tei = 64  ns = 1  nr = 1  i = 0x08007B952A0480800150
00:35:05: ISDN BR0: TX ->  RRr sapi = 0  tei = 64  nr = 2
00:35:05: ISDN BR0: RX <-  IDASSN  ri = 48769  ai = 73
00:35:05: ISDN BR0: TX ->  SABMEp sapi = 0  tei = 73
00:35:05: ISDN BR0: RX <-  UAf sapi = 0  tei = 73
00:35:05: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0, TEI 73 changed to up
00:35:05: ISDN BR0: TX ->  INFOc sapi = 0  tei = 73  ns = 0  nr = 0  i = 0x08007B3A0E3531353236333337313931313131
00:35:05: ISDN BR0: RX <-  RRr sapi = 0  tei = 73  nr = 1
00:35:05: ISDN BR0: RX <-  INFOc sapi = 0  tei = 73  ns = 0  nr = 1  i = 0x08007B3B02818B
00:35:05: ISDN BR0: TX ->  RRr sapi = 0  tei = 73  nr = 1
00:35:05: ISDN BR0: RX <-  INFOc sapi = 0  tei = 73  ns = 1  nr = 1  i = 0x08007B952A0480800150
00:35:05: ISDN BR0: TX ->  RRr sapi = 0  tei = 73  nr = 2
00:35:22: ISDN BR0: Event: Hangup call to call id 0x8036  ces = 1
00:35:22:     CC: dsl 0 No CCB Src->HOST cid 0x8036, ev 0x5 ces 1
00:35:22: ISDN BR0: received HOST_QUERY_RESPONSE call_id 0x8036
00:35:22: ISDN BR0: Outgoing call id = 0x8037
00:35:22: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:35:22: ISDN BR0: TX ->  INFOc sapi = 0  tei = 64  ns = 1  nr = 2  i = 0x08011105040288901801832C0733323336313739
00:35:22: ISDN BR0: RX <-  RRr sapi = 0  tei = 64  nr = 2
00:35:23: ISDN BR0: RX <-  INFOc sapi = 0  tei = 64  ns = 2  nr = 2  i = 0x08019102180189
00:35:23: ISDN BR0: TX ->  RRr sapi = 0  tei = 64  nr = 3
00:35:23: ISDN BR0: received HOST_PROCEEDING call_id 0x8037
00:35:23: ISDN BR0: RX <-  INFOc sapi = 0  tei = 64  ns = 3  nr = 2  i = 0x08019107
00:35:23: ISDN BR0: TX ->  RRr sapi = 0  tei = 64  nr = 4
00:35:23: ISDN BR0: received HOST_CONNECT call_id 0x8037
00:35:23: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
00:35:23: ISDN BR0: Event: Connected to 3236179 on B1 at 64 Kb/s
00:35:23: ISDN BR0: TX ->  INFOc sapi = 0  tei = 64  ns = 2  nr = 4  i = 0x0801110F
00:35:23: ISDN BR0: RX <-  RRr sapi = 0  tei = 64  nr = 3
00:35:24: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up
00:35:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state
to up
00:35:25: Vi1 PPP: Outbound cdp packet dropped, CDPCP is Closed [starting negotiations]
00:35:25: Vi1 PPP: Outbound cdp packet dropped, CDPCP is Closed [starting negotiations]
00:35:25: Vi1 PPP: Outbound cdp packet dropped, CDPCP is Closed [starting negotiations]
00:35:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up
00:35:26: Vi1 PPP: Outbound cdp packet dropped, CDPCP state is Listen
00:35:29: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 3236179 qwest
00:35:35: ISDN BR0: Outgoing call id = 0x8038
00:35:35: ISDN BR0: Event: Call to 3236179 at 64 Kb/s
00:35:35: ISDN BR0: TX ->  INFOc sapi = 0  tei = 73  ns = 1  nr = 2  i = 0x08011205040288901801832C0733323336313739
00:35:35: ISDN BR0: RX <-  RRr sapi = 0  tei = 73  nr = 2
00:35:35: ISDN BR0: RX <-  INFOc sapi = 0  tei = 73  ns = 2  nr = 2  i = 0x0801920218018A
00:35:35: ISDN BR0: TX ->  RRr sapi = 0  tei = 73  nr = 3
00:35:35: ISDN BR0: Event: incoming ces value = 2
00:35:35: ISDN BR0: received HOST_PROCEEDING call_id 0x8038
00:35:36: ISDN BR0: RX <-  INFOc sapi = 0  tei = 73  ns = 3  nr = 2  i = 0x08019207
00:35:36: ISDN BR0: TX ->  RRr sapi = 0  tei = 73  nr = 4
00:35:36: ISDN BR0: Event: incoming ces value = 2
00:35:36: ISDN BR0: received HOST_CONNECT call_id 0x8038
00:35:36: %LINK-3-UPDOWN: Interface BRI0:2, changed state to up
00:35:36: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 3236179 qwest
00:35:36: ISDN BR0: Event: Connected to 3236179 on B2 at 64 Kb/s
00:35:36: ISDN BR0: TX ->  INFOc sapi = 0  tei = 73  ns = 2  nr = 4  i = 0x0801120F
00:35:36: ISDN BR0: RX <-  RRr sapi = 0  tei = 73  nr = 3
00:35:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:2, changed state
to up
00:35:42: %ISDN-6-CONNECT: Interface BRI0:2 is now connected to 3236179 qwest
00:35:53: ISDN BR0: TX ->  RRp sapi = 0  tei = 64 nr = 4
00:35:53: ISDN BR0: RX <-  RRf sapi = 0  tei = 64  nr = 3sho
00:36:05: ISDN BRI0: isdn_is_bchannel_available: No Free B-channelsd
00:36:06: ISDN BR0: TX ->  RRp sapi = 0  tei = 73 nr = 4
_______________-

show controller bri:

BRI unit 0:BRI unit 0 with U interface and external S bus interface:
Layer 1 internal state is ACTIVATED

Layer 1 U interface is ACTIVATED.
    External S/T is DEACTIVATED
ISDN Line Information:
    Last C/I from ISDN transceiver:
        AI:Activation Indication
    Last C/I to ISDN transceiver:
        AI:Activation Indication
    Last C/I from ISDN S bus transceiver:
        DI:Deactivation Indication
    Last C/I to ISDN S bus transceiver:
        DC:Deactivation Confirmation
    Current EOC commands:
        RTN - Return to normal
    Received overhead bits:  AIB=1, UOA=1, FEBE=1, DEA=1, ACT=1
Errors:  Receive [NEBE]=1166, Transmit [FEBE]=1018

Siemens 2091 read-only registers:
    ISTA 0 MOR FF MOSR 0 CIRI 3F CIRU 33
Siemens 2091 write-only registers - last values written:
    MASK 96 STCR 15 MOX 8 DWU FF ADF2 28 RSVD 0 WB1U 0 WB2U 0



0
akant74
Asked:
akant74
2 Solutions
 
scrathcyboyCommented:
This is more likely to be a problem in the Qwest telco office or their head-end taking your ISDN than it is the Cisco router.  Have you called them?  They can monitor your line at their recieving end, see why the packets are being lost.  This is part of what you pay them for, consistent uptime, make them perform!
0
 
lrmooreCommented:
>Errors:  Receive [NEBE]=1166, Transmit [FEBE]=1018
Given these error counts, I agree with scrathyboy that is is generally a telco issue.
If the link works at all, it is not typically a configuration issue on the router.
However, the vast majority of IOS bugs that I've personally run into have been related to ISDN. You may want to update the IOS to the latest that your router will hold. I had basically same issue with some 804's and had to upgrade to 12.3.15a from 12.2.31
0
 
akant74Author Commented:
Thank you for the replies...   Well the lines have worked fine for over a week... and happened to start dropping again today.  I called the teleco and they said they can connect to use fine.  However they do not see our SPIDS in their switch and never have.  My status on the router says that the spids have been send and accepted?? So I am not sure why they are getting this.  They think it may be a problem with our extended demarc and we are checking on this.  Any ideas on how to arm myself to yell at Qwest?  We are seeing crc errors also..
0
 
lrmooreCommented:
>We are seeing crc errors also..
CRC errors are almost always related to wiring or the demarc point.
0
 
ravisimpiCommented:
Well I face similar kind of problem.

 I was able to make a test call but that call used to drop after 20 seconds. I informed telco about it, but they sais it is not their problem.

 The site was in a small town.. there were no other isdn customers in the town other then us. I called the telco engineer to our sub office and explained the problem. He understood it.. and decided to change some things in what they call as an ISDN tub. He changed the ISDN card in the ISDN tub and then it started to work very well. Our enterprise consists of 64 sub offices.. 3 of them had the same problem.. and the same solution was used.

  this is 100% an issue with telco.
0

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