Hello,
First problem I see is 'Layer 1 DEACTIVATED'. Here is the link and
suggestion to this problem from Cisco:
http://www.cisco.com/warp/public/779/smbiz/service/troubleshooting/ts_isdn.h
tm
Using Show Commands To Troubleshoot ISDN Networks
The show commands in the Cisco IOS that are most helpful in solving ISDN
problems tell you whether you are connected to the local ISDN switch - show
isdn status, or whether you have successfully made a call - show dialer.
Show ISDN Status Command
Upon getting the ISDN line provisioned by telco, the only parameters that
are required for the router to synchronize with the switch are the switch
type and the spid(s). Sample configuration would be:
isdn switch-type basic-ni1
!
interface BRI0
isdn spid1 41555512120101 5551212
isdn spid2 41555512130101 5551213
After proper configuration, output from the show isdn status EXEC command
would yield:
The current ISDN Switchtype = basic-ni1
ISDN BRI0 interface
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 112, State = MULTIPLE_FRAME_ESTABLISHED
TEI = 113, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
Total Allocated ISDN CCBs = 0
--> Failure of the Cisco router to synchronize properly with the ISDN switch
would yield:
The current ISDN Switchtype = basic-ni1
ISDN BRI0 interface
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
No Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
Total Allocated ISDN CCBs = 0
If you receive this output, the possible causes are:
-----------------------------------------------------
Problem Suggested Action
Faulty Cable Replace the cable from router to ISDN jack, making
sure the
cable contains the middle two pins (pins 4 & 5 in an RJ-45 cable).
Wrong Switch Type or Spid(s) Contact telco and confirm switch type and
spid(s). Re-enter them into router and issue the clear interface bri number
EXEC command.
Faulty ISDN line Get an analog phone and plug into ISDN jack.
You should
get either 1) a clicking noise, or 2) white noise/light static. If you do
not get either of those, it is not an active ISDN line. Contact telco and
open trouble ticket.
------------------------------------------------------
Mike Munoz
****************************************************************************
*********************************
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Hans Stout
Sent: Friday, July 21, 2000 9:48 AM
To: [EMAIL PROTECTED]
Subject: ISDN interface problem
Hi there colleagues,
I have a problem with my ISDN interface on a Cisco 2610 router. I just had a
Telekom engineer at the site verify that the line is ok to the interface,
but he cannot see any lights burning on the intreface (B1 and B2 LEDs). When
I do a sh isdn status, I get the following:
Ener_Erkath#sh isdn status
Global ISDN Switchtype = basic-net3
ISDN BRI0/0 interface
dsl 0, interface ISDN Switchtype = basic-1tr6
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
Layer 2 NOT Activated
Layer 3 Status:
0 Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
The Free Channel Mask: 0x80000003
Total Allocated ISDN CCBs = 0
When I change the ISDN switchtype to basic-net3, it doesn't change the
status of the ISDN.
Here is the output from the sh int bri0/0:
Ener_Erkath#sh int bri0/0
BRI0/0 is standby mode, line protocol is down
Hardware is PQUICC BRI
Internet address is 10.90.1.70/30
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec, rely 255/255, load 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
21036936 packets output, 2224160372 bytes, 0 underruns
0 output errors, 0 collisions, 3 interface resets
0 output buffer failures, 0 output buffers swapped out
140 carrier transitions
Does anybody know if this could just mean that the interface is not
functioning at all ? What do the carrier transitions mean ? And what does
'standby mode' mean ?
I am also not able to bounce the interface (shutdown/no shutdown doesn't
change the status on the interface, it remains in standby mode).
Thanks for your help in advance !
Regards,
Georg
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