Cisco Qsig Problem

[SL1M1]

Have had my Cisco link working fine with QSIG but recently the link is causing problems...The indication is that the 'D'Channel is AEST (Awaitign Establishment) and can Enable each channel ENCH on the loop ?

When I try and ENL the Dchannel I don't get any expected responses.

I have looped back the link down the Cisco and they can see it, but nothing has changed either on the Cisco side or the PBX.

The DChannel is on an MSDL supporting other IPTrunks etc and am very hesitant to take this down and Force Down Load again...Have taken down the Dual Pri Card and reset/reseated no effect..I am struggling now !!

Spoke to the IPT guys and they say that they are expecting to see the Dchannel on 15 ? Ironically my MSDL physical address is 15 and the Dchanel is 6, surely there is no relation !!

Cheers !!

 

[johnpoole]

has anything changed on the link? post the qsig and i will compare it to mine

john poole
bellsouth business
columbia,sc

 

[SL1M1]

John, Thanks for the swift response

ADAN DCH 6
CTYP MSDL
GRP 1
DNUM 15
PORT 0
DES Cisco
USR PRI
DCHL 35
OTBF 32
PARM RS422 DTE
DRAT 64KC
CLOK EXT
IFC ISGF
PINX_CUST 0
ISDN_MCNT 300
CLID OPT0
CO_TYPE STD
SIDE NET
CNEG 1
RLS ID **
QCHID YES
RCAP COLP NDI CCBI CCNI PRI CTI
PR_TRIGS DIV 2 3
CNG 2 3
PR_RTN NO
MBGA NO
OVLR YES
DIDD 0
OVLS NO
T310 120
T200 3
T203 10
N200 3
N201 260
K 7

Cheers !!

 

[srmega41]

Can we assume this is a EURO ISDN link, using an E1? The reason I ask is that the D-Channel is on channel 24 on all US 1.544 Mb/s T1's. If you IPT guys are looking for it on channel 15, that would sound like a 2.0 Mb/s E1.

BTW, one other option you may want to add is under the PR_TRIGS CTR1 or CTR2. This allows the Nortel to respond to path replacement requests as defind in the Q.SIG RFC.

Hope this helps,

Scott M.

 

[johnpoole]

here's a snap shot on the cisco side

isdn switch-type primary-qsig
!         
controller T1 1/0
 framing esf
 linecode b8zs
 pri-group timeslots 1-24 service mgcp
!         
interface Serial1/0:23
 no ip address
 no logging event link-status
 isdn switch-type primary-qsig
 isdn protocol-emulate network
 isdn incoming-voice voice
 isdn T310 120000
 isdn bind-l3 ccm-manager
 no cdp enable

and here is the link from my 81c from my switch.

TYPE RDB
CUST 00
ROUT 100
DES  CISCO LOCAL
TKTP TIE
NPID_TBL_NUM   0
ESN  NO
CNVT NO
SAT  NO
IDEF NET
RCLS EXT
VTRK NO
DTRK YES
BRIP NO
DGTP PRI
ISDN YES
    MODE PRA
    IFC  ISGF
    SBN  NO
    PNI  00000
    NCNA NO
    NCRD NO
    CHTY BCH
    CTYP UKWN
    INAC NO
    ISAR NO
    CPFXS YES
    DAPC NO
    INTC NO
DSEL VOD
PTYP PRI
AUTO NO
DNIS NO
DCDR NO
ICOG IAO
SRCH RRB
TRMB YES
STEP
ACOD 8760
TCPP NO
TARG
CLEN 1
BILN NO
OABS
INST
IDC  YES
DCNO 2 *
NDNO 2
DEXT NO
DNAM NO
ANTK
SIGO STD
ICIS YES
TIMR ICF  512
     OGF  512
     EOD  13952
     NRD  10112
     DDL  70
     ODT  4096
     RGV  640
     GRD  896
     SFB  3
     NBS  2048


PAGE 002

     NBL  4096

     IENB  5
     TFD  0
     VSS  0
     VGD  6
DRNG NO
CDR  NO
VRAT NO
MUS  YES
MRT  10
RACD NO
FRL  0 0
FRL  1 0
FRL  2 0
FRL  3 0
FRL  4 0
FRL  5 0
FRL  6 0
FRL  7 0
OHQ  NO
OHQT 00
CBQ  NO
AUTH NO
TDET NO
TTBL 0
ATAN NO
PLEV 2
ALRM NO
ART  0
SGRP 0
AACR NO

    
DES  CISCO LOCAL
TN   000 12
TYPE TIE
CDEN SD
CUST 0
TRK  PRI
PDCA 1
PCML MU
NCOS 1
RTMB 100 12
B-CHANNEL SIGNALING
TGAR 1
AST  NO
IAPG 0
CLS  CTD DTN WTA LPR APN THFD HKD
     P10 VNL
TKID
FCAR NO
DATE 24 FEB 2005

ADAN     DCH 100
  CTYP MSDL
  GRP  0
  DNUM 13
  PORT 0
  DES  Cisco
  USR  PRI
  DCHL 0
  OTBF 32
  PARM RS422  DTE
  DRAT 64KC
  CLOK EXT
  IFC  ISGF
    PINX_CUST 0
    ISDN_MCNT 300
  CLID OPT0
  CO_TYPE  STD
  SIDE USR
  CNEG 1
  RLS  ID  **
  RCAP COLP NDI CCBI CCNI PRI DV3I CTI  QMWI
  PR_TRIGS DIV 2 3
           CNG 2 3
  PR_RTN NO
  MBGA NO
  OVLR YES
  DIDD 0
  OVLS NO
  T310 120
  T200 3
  T203 10
  N200 3
  N201 260
  K    7

i never think of software for a condition that is not stable. qsig like most software seems to be perfect or it will not come up.. does the lcnt table show any problem? either way i would look at the hardware on both ends... if the link is clean, my local link is a patch cord my second route is across glass and neither have taken a single lcnt hit after the install feb of last year..




john poole
bellsouth business
columbia,sc

 

[SL1M1]

John & ScottM,

on the counters I have so far:-
G2 RAI (26)
LOS (3)

SLPPREP (3)

When I try and enable the loop it tells me every time I have Group2 error detected

Any ideas ?

The IPT Guys still go on about this channel 15 on the cisco
needs to be matched ?

Do I need to insist that they double check it's set up for ISDN Primary QSIG

Cheers !!

 

[johnpoole]

i would still look at the loop itself. those hits are layer 1 if my book is current

john poole
bellsouth business
columbia,sc

 

[srmega41]

I agree. I am showing the router should be set up like this within Call Manager:

Network Locale = United States
PRI Protocol Type* = PRI QSIG T1
Protocol Side* = User
Channel Selection Order* = Bottom Up
Channel IE Type* = Timeslot Number
PCM Type* = u-Law
Delay for first restart = 32
Delay between restarts = 4

This is the Call Manager config to match with your Q.SIG programming on the Nortel. The only thing I can find that would even begin to address D-Channel location is on the Network Locale option. If it is set to anything like Europe or EURO ISDN, the router will look for the D-Channel on Channel 15 (and 16). Otherwise, the D-Channel is always on Channel 24.

Scott M.

 

[SL1M1]

OK Guys many thanks for your time and help on this !!
Checking cables/connections working backwards..Thanks for the Cisco Configs as I can clarify with the IPT guys.

Maybe I'll source a daughter board rather than changing out the MSDL card without impacting too much on other dch's configured.

Cheers!!

 

[johnpoole]

i haven't had a msdl cause intermittent problems, they either seem to work as programed or never est. sounds like you know that any change has to be downloaded to the card. ld 96 dis msdl x all enl msdl x fdl.. we get used to changes being dynamic we sometimes forget to download that card.

john poole
bellsouth business
columbia,sc