[cisco-voip] ISDN Bad Frame

Jason Aarons (US) jason.aarons at us.didata.com
Fri Dec 4 16:56:47 EST 2009


One side needs to network side vs user side, also who's providing
clocking? Eg isdn protocol-emulate

 

http://www.cisco.com/en/US/docs/ios/12_1t/12_1t3/feature/guide/dt_q931.h
tml

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Mark Holloway
Sent: Friday, December 04, 2009 4:46 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] ISDN Bad Frame

 

I'm trying to get this lab ISDN configuration up and running but I am
having ISDN problems.  I have two 2811 routers each with a VWIC 2MFT-T1
and a T1 crossover cable connecting them.  They won't move from
TEI_ASSIGNED to MULTIPLE_FRAME_ESTABLISHED.  I know my T1 cable is good.


 

# debug isdn q921

 

Dec  4 20:57:58.250: ISDN Se0/0/0:23 Q921: User RX <- BAD
FRAME(0x00017F)

Dec  4 20:57:59.250: ISDN Se0/0/0:23 Q921: User RX <- BAD
FRAME(0x00017F)

Dec  4 20:58:00.250: ISDN Se0/0/0:23 Q921: User RX <- BAD
FRAME(0x00017F)

 

 

# show isdn status

 

Global ISDN Switchtype = primary-ni

 

%Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may
not apply

 

ISDN Serial0/0/0:23 interface

            dsl 0, interface ISDN Switchtype = primary-ni

            L2 Protocol = Q.921 0x0000  L3 Protocol(s) = CCM MANAGER
0x0003 

    Layer 1 Status:

            ACTIVE

    Layer 2 Status:

            TEI = 0, Ces = 1, SAPI = 0, State = TEI_ASSIGNED

 

 

# show run | sec controller

controller T1 0/0/0

 framing esf

 linecode b8zs

 cablelength short 133

 pri-group timeslots 1-3,24 service mgcp

 description PRI

 

# show run | sec Serial

interface Serial0/0/0:23

 description PRI

 no ip address

 encapsulation hdlc

 isdn switch-type primary-ni

 isdn incoming-voice voice

 isdn bind-l3 ccm-manager

 no cdp enable

 

 

The "PSTN" router

 

controller T1 0/0/0

 clock source internal

 cablelength short 133

 pri-group timeslots 1-3,24

 description PRI

 

interface Serial0/2/0:23

 description PRI

 no ip address

 encapsulation hdlc

 isdn switch-type primary-ni

 isdn incoming-voice voice

 isdn bchan-number-order ascending 

 no cdp enable

 

PSTN#deb isdn q921

debug isdn q921 is                  ON.

PSTN#term mon

PSTN#

Dec  4 21:54:51.090: ISDN Se0/0/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0

Dec  4 21:54:55.590: ISDN Se0/2/0:23 Q921: L2_EstablishDataLink: sending
SABME

Dec  4 21:54:55.590: ISDN Se0/2/0:23 Q921: User TX -> SABMEp sapi=0
tei=0

Dec  4 21:54:56.590: ISDN Se0/2/0:23 Q921: User TX -> SABMEp sapi=0
tei=0

Dec  4 21:54:57.090: ISDN Se0/0/0:23 Q921: L2_EstablishDataLink: sending
SABME

Dec  4 21:54:57.090: ISDN Se0/0/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0

Dec  4 21:54:57.590: ISDN Se0/2/0:23 Q921: User TX -> SABMEp sapi=0
tei=0

Dec  4 21:54:58.090: ISDN Se0/0/0:23 Q921: Net TX -> SABMEp sapi=0 tei=0

 

 

 




-----------------------------------------
Disclaimer:

This e-mail communication and any attachments may contain
confidential and privileged information and is for use by the
designated addressee(s) named above only.  If you are not the
intended addressee, you are hereby notified that you have received
this communication in error and that any use or reproduction of
this email or its contents is strictly prohibited and may be
unlawful.  If you have received this communication in error, please
notify us immediately by replying to this message and deleting it
from your computer. Thank you.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20091204/a59c976b/attachment.html>


More information about the cisco-voip mailing list