ISDN Trace 1

[szpuni]

Hi there lads.
Do anybody have some howto or documents about isdne traces.

I have a problem with one of my customers, the line is going down without a reason. I have a ISDN Trace but I`m affraid I don`t understand it enough to find the problem.

Thanks

 

[tlpeter]

Can you post it here ?


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[szpuni]

I would but there is good few megs of this in text only so I don`t think this is good idea.

I`m looking for some materials which can give me more informations about how the call is send and recive from the layer 1, 2 and 3. I have found some codes but this is only small pice of knowledge and I need some more.

 

[tlpeter]

Search for cause=, lock and falc


ACA - Implement IP Office
ACS - Implement IP Office
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!

 

[MrIPO]

Look for PHDI and PHAI, most of the time you will see F8 and F3 prior to the line going down.

See below more specific details, PRI's output very similar information.
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The following messages only appear if System/PRN and ISDN/Events Layer1 are enabled :-
PRN: Falc %d slip
PRN: Slot A slip (412)
PRN: Slot B slip (412)
PRN: Clock %d: excursion %u
PRN: Falc %d unlocked
PRN: Falc %d: excursion %u
PRN: Falc %d locked
PRN: Isac %d: excursion %u

The following messages are output when ISDN/Events/Layer1 only is set :-

ISDNL1Evt: v=[line_no.] peb=[hardware device no.], [new L1 state] [old L1 state]

Where BRI L1 state value is as follows :-

Value Message
F1 Inactive
F2 Sensing
F3 Deactivated
F4 awaiting signal
F5 identifying input
F6 synchronized
F7 activated
F8 lost framing


ISDNL1Evt: v=[line_no.] peb=[hardware device no.], [message]

Where BRI L1 sates value is as follows :-

Message Description

PHAI Physical Activate Indication (i.e. Line is UP)
PHDI Physical Deactivate Indication (Line is DOWN)
T3TO T3 timeout has occurred
TxErr A Transmit error has occurred
UnLocked The IP Office is not able to lock its clock to this line.
Locked The IP Office and the clock extracted from this line are locked together.



Mr IPO

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[szpuni]

thanks very much man.