ISDN PRI not coming up

[shyam2014]

Hi All,

We are turning up a LD PRI in a site ..but even after turning up the D channel it is not coming up. The switch type is primary ni2.

Below is the current status

ISDN Serial0/2/0:23 interface
        dsl 2, interface ISDN Switchtype = primary-ni
    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 2 CCBs = 0
    The Free Channel Mask:  0x00000000
    Number of L2 Discards = 0, L2 Session ID = 18
    Total Allocated ISDN CCBs = 0

Controller-

controller T1 0/2/0
 fdl both
 cablelength long 0db
 pri-group timeslots 1-24
 description T1/PRI XXXXXXX

interface Serial0/2/0:23
 no ip address
 encapsulation hdlc
 isdn switch-type primary-ni
 isdn incoming-voice voice
 no cdp enable

The interface is constantly going up and down constantly showing loss of frame.

do we need to connect crossover cable or something?

[shyam2014]

Doing a terminal monitor

*Jan 24 04:54:01.448: %CONTROLLER-5-UPDOWN: Controller T1 0/2/0, changed state to up
*Jan 24 04:54:03.448: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state to up
*Jan 24 04:54:04.448: %CONTROLLER-5-UPDOWN: Controller T1 0/2/0, changed state to down (LOF detected)
*Jan 24 04:54:04.448: ISDN Se0/2/0:23 Q931: L3_ShutDown: Shutting down ISDN Layer 3
*Jan 24 04:54:04.452: ISDN Se0/2/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2
*Jan 24 04:54:06.448: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state to down
*Jan 24 04:54:07.448: %CONTROLLER-5-UPDOWN: Controller T1 0/2/0, changed state to up
*Jan 24 04:54:09.448: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state to up
*Jan 24 04:54:11.456: ISDN Se0/2/0:23 Q931: Ux_DLRelInd: DL_REL_IND received from L2
*Jan 24 04:54:12.448: %CONTROLLER-5-UPDOWN: Controller T1 0/2/0, changed state to down (LOF detected)
*Jan 24 04:54:12.448: ISDN Se0/2/0:23 Q931: L3_ShutDown: Shutting down ISDN Layer 3
*Jan 24 04:54:14.448: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state to down

[Aman Soi]

seems to be a framing issue logs show loss of frame [LOF]

what is the framing[sf/esf] and CRC4 u have configured under controller ?

regds,

aman

[shyam2014]

T1 0/2/0 is down.
  Applique type is Channelized T1
  Cablelength is long 0db
  Description: T1/PRI XXXX
  Transmitter is sending remote alarm.
  Receiver has loss of frame.
  alarm-trigger is not set
  Soaking time: 3, Clearance time: 10
  AIS State:Clear  LOS State:Clear  LOF State:Failure
  Version info FPGA Rev: 08121917, FPGA Type: PRK4
  Framing is ESF, FDL is ansi & att, Line Code is B8ZS, Clock Source is Line.
  CRC Threshold is 320. Reported from firmware  is 320.

[Aman Soi]

Hi Shyam,

It would be better if u speak to TELCO and get the parameters to be configured  for T1 Controller.

regds,

aman

[Carlo Poggiarelli]

Hi Shyam.

+5 to my buddy Aman.

I also would try theese two commands:

network-clock-select 1 T1 0/2/0

Also check cabling between your VG and TELCO Equipment

HTH

Regards

Carlo