Here is a good link for ISDN configs. There are also links from here to do
troubleshooting. Good luck.
http://www.cisco.com/warp/public/779/smbiz/service/configs/isdn/isdn_configs
.htm
This is the "root" link to that site. I've found it very helpful.
http://www.cisco.com/warp/public/779/smbiz/service/tech/index.html
Will
<chris.w.polson@xxxxxx> wrote in message
news:86256896.00332E54.00@xxxxxxxxxxxxxxxxxxx
> Ok, I've been working on this entirely too long. I recently purchased a
2503
> and an ISDN line. The 2503 works (aside from the BRI interface that I
can't
> confirm), the ISDN line works, but I can't get them to work together.
I've gone
> through my config numerous times. I've even blew it all away and started
from
> ground zero a couple of times. No matter what I do, I still can't get it
to
> even dial out.
>
> When I run a debug on the dialer, I can see where it dials the number, but
it
> always ends with "isdn carrier wait timeout". I've checked the switch
type
> (basic-ni1), played with tei-negotiation, etc. According to everything I
have
> read, it should be working. The only thing I haven't been able to rule
out is
> the actual BRI interface on the router. I've tried using "show isdn
status" and
> see that it hasn't connected to anything. But, I don't know if this is
normal
> or not. Here's the config with associated output.
>
> Here's the config and related data:
>
> hostname RouterB
> !
> !
> isdn switch-type basic-ni1
> !
> interface BRI0
> ip address negotiated
> encapsulation ppp
> dialer idle-timeout 600
> dialer fast-idle 10
> dialer map ip 216.215.65.1 broadcast 4174092
> dialer load-threshold 1 outbound
> dialer-group 1
> isdn spid1 81731495350101 3149535
> isdn spid2 81731495360101 3149536
> ppp authentication pap
> !
> ip route 0.0.0.0 0.0.0.0 BRI0
> !
> dialer-list 1 protocol ip permit
> !
>
> RouterB#sh debug
> Dial on demand:
> Dial on demand events debugging is on
> ISDN:
> ISDN events debugging is on
> ISDN Q921 packets debugging is on
> ISDN Q931 packets debugging is on
>
> RouterB#ping 216.215.65.1
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 216.215.65.1, timeout is 2 seconds:
>
> 16:32:40: BRI0: Dialing cause ip (s=10.0.0.1, d=216.215.65.1)
> 16:32:40: BRI0: Attempting to dial 4174092
> 16:32:40: ISDN BR0: Outgoing call id = 0x8007
> 16:32:40: ISDN BR0: Event: Call id 0x8007 to 4174092 at 64 Kb/s
> 16:32:40: ISDN BR0: Activating....
> 16:32:48: BRI0: wait for isdn carrier timeout, call id=0x8007
> 16:32:48: ISDN BR0: Physical layer is IF_DOWN
> 16:32:48: ISDN BR0: Could not bring up interface
> 16:32:48: ISDN BR0: Shutting down ME
> 16:32:48: ISDN BR0: Shutting down ISDN Layer 3.
> Success rate is 0 percent (0/5)
>
> RouterB#sh isdn status
> The current ISDN Switchtype = basic-ni1
> ISDN BRI0 interface
> Layer 1 Status:
> DEACTIVATED
> Layer 2 Status:
> Layer 2 NOT Activated
> Spid Status:
> TEI Not Assigned, ces = 1, state = 1(terminal down)
> spid1 configured, spid1 NOT sent, spid1 NOT valid
> TEI Not Assigned, ces = 2, state = 1(terminal down)
> spid2 configured, spid2 NOT sent, spid2 NOT valid
> Layer 3 Status:
> 0 Active Layer 3 Call(s)
> Activated dsl 0 CCBs = 0
> The Free Channel Mask: 0x80000003
> Total Allocated ISDN CCBs = 0
>
> RouterB#sh int
> BRI0 is up (spoofing), line protocol is up (spoofing)
> Hardware is BRI
> Internet address will be negotiated using IPCP
> MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation PPP, loopback not set
> Last input never, output never, output hang never
> Last clearing of "show interface" counters never
> Input queue: 0/75/0 (size/max/drops); Total output drops: 0
> Queueing strategy: weighted fair
> Output queue: 0/1000/64/0 (size/max total/threshold/drops)
> Conversations 0/0/256 (active/max active/max total)
> Reserved Conversations 0/0 (allocated/max allocated)
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 0 packets input, 0 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
> 0 packets output, 0 bytes, 0 underruns
> 0 output errors, 0 collisions, 10 interface resets
> 0 output buffer failures, 0 output buffers swapped out
> 7 carrier transitions
>
> Any ideas why this isn't working? The only conclusion I could come to is
that
> the router is not properly negotiating TEI. I did plug in an ISDN
> modem to verify the line was actually good. It works great (never thought
I
> would say that about Bay/Nortel equipment).
>
> Thanks,
> Chris
>
>
>
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