03-23-2009 08:32 AM - edited 03-18-2019 10:44 PM
I'm having a hard time configuring an IDSN E1 PRI in our 2811 router.
I followed all the cisco configuration guides, tips, forums, etc, and nothing.
I think is something related with the isdn switch-type, framing, or something with the controller configuration. Remember this setup is for Spain.
This is what I've got so far:
card type E1 0 3
isdn switch-type primary-net5
network-clock-participate wic 3
network-clock-select 1 E1 0/3/0
voice-card 0
dspfarm
no local-bypass
controller e1 0/3/0
framing no-crc4
pri-group timeslots 1-8
linecode hdb3
interface Serial0/3/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
voice-port 0/3/0:15
dial-peer voice 1 pots
description PRIMARIO
destination-pattern .T
incoming called-number 902333302
direct-inward-dial
port 0/3/0:15
Any help is appreciated! I'm really stuck on this.
03-23-2009 01:49 PM
Can you post the results of "show isdn status"? It appears this is a fractional PRI and that you're using 8 channels. Does this configuration match the carriers config?
Brandon
03-23-2009 08:20 PM
Fairly generic problem description.
Generic troubleshooting steps:
'sh controller t1' - is it up? If not, physical problem.
'show isdn status' - is it multiple frame established? If not, 'debug isdn q921' and possibly check switch type. There can be some local variant (especially with BRI) for getting layer 2 up.
'debug isdn q931' for a failed call if your layer 2 is up. This will show if your dial plan or dial peers are configured correctly.
hth,
nick
03-24-2009 12:27 AM
Router#show
*Mar 24 07:21:44.407: %SYS-5-CONFIG_I: Configured from console by consoleisdn st
at
Global ISDN Switchtype = primary-5ess
ISDN Serial0/3/0:15 interface
dsl 0, interface ISDN Switchtype = primary-net5
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 0
Total Allocated ISDN CCBs = 0
Router#
Router#show controllers e1
E1 0/3/0 is down.
Applique type is Channelized E1 - balanced
Cablelength is Unknown
Transmitter is sending remote alarm.
Receiver has loss of signal.
alarm-trigger is not set
Version info Firmware: 20071011, FPGA: 13, spm_count = 0
Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.
CRC Threshold is 320. Reported from firmware is 320.
Data in current interval (847 seconds elapsed):
0 Line Code Violations, 0 Path Code Violations
0 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins
0 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 847 Unavail Secs
Router#
I read a bit in internet, it appears to be a problem that my configuration is not matching the telco parameters? am I right?
Thanks again for the help!
03-24-2009 04:32 AM
Your T1 is down. Make sure 3 things are right:
clock source matches provider
line code matches provider
framing matches provider
If this is back-to-back between routers you need a T1/E1 crossover cable.
If this is to a smartjack, it should be a straight through cable.
hth,
nick
03-25-2009 07:49 AM
Good afternoon, thanks for all the replies! I still need help.
We talk to our provider and we have the "correct" paremeters, but we still can't work this out.
Router#show isdn stat
Global ISDN Switchtype = primary-net5
ISDN Serial0/3/0:15 interface
dsl 0, interface ISDN Switchtype = primary-net5
Layer 1 Status:
DEACTIVATED
Layer 2 Status:
TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED
Layer 3 Status:
0 Active Layer 3 Call(s)
Active dsl 0 CCBs = 0
The Free Channel Mask: 0x00000000
Number of L2 Discards = 0, L2 Session ID = 1
Total Allocated ISDN CCBs = 0
We tried everything, and I'm sure we're stuck on some detail we can't see. Our provider is not helping much, either.
Any more ideas? Thanks.
03-25-2009 08:29 AM
This is wiring or layer 1.
Layer 1 Status:
DEACTIVATED
No amount of ISDN configuration is going to help you now.
-nick
03-25-2009 08:35 AM
yes, sadly, I know.
The problem is, with our "old" pbx, it works. I'm only unplugging the jack on the "old" one, and plug in in the Cisco WIC. So (maybe) is not a cabling/jack/crossover cable issue.
03-25-2009 10:45 AM
The main thing to be aware of is that back-to-back requires a T1 cross over, but if you're connecting to a smartjack or an ISDN switch, it may be a straight through.
(This could be vice versa for your situation). Pins 1+4 and 2+5 are switched in the crossover scenario.
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