Re [asterisk-ss7] MTP2 CRC error (CRC=0x74b0 != 0xf0b8) on link

[Mitul Limbani]

Hi Kai,

>> I would like to know if any one faced this, i also surfed through
>> archives, but that issue was pertaining to some IRQ issues but my
>> machine has seperate IRQ for my TE110P card.
>
> I had a very similar problem with a system with a TE210P and was
> struggling quite some time to get behind it. It finally turned out that
> my card was broken. I changed the card and the CRC-Problems were gone.
> (See my mail from 07/07/06 with the subject "[asterisk-ss7] Strange
> interrupt issue with zaptel and chan_ss7" and following mails)
>
> I think (if I am wrong please correct me) the reason that this happens
> quite often with chan_ss7 is, that in SS7 one channel (time slot) is
> used with its complete bandwidth of 64k all the time to do the
> signaling. IIRC that is not the case in PRIs, so it is possible that
> more cards are broken, but the problem simply does not show because of
> less used bandwidth.

So what card you suggest to replace TE110P with ? another Single Span 
card of a Double / Quad or try totally different brand like Sangoma ?

I see that there is a lot of documentation on Sangoma site, but would 
like to get opinions out here.

Also, today i m facing constant problem of:
-----------------------------------------------------------------------
Linkset: siuc
CIC   1 Idle             BLOCKED Remote Hardware
CIC   2 Idle             BLOCKED Remote Hardware
CIC   3 Idle             BLOCKED Remote Hardware
CIC   4 Idle             BLOCKED Remote Hardware
CIC   5 Idle             BLOCKED Remote Hardware
CIC   6 Idle             BLOCKED Remote Hardware
CIC   7 Idle             BLOCKED Remote Hardware
CIC   8 Idle             BLOCKED Remote Hardware
CIC   9 Idle             BLOCKED Remote Hardware
CIC  10 Idle             BLOCKED Remote Hardware
CIC  11 Idle             BLOCKED Remote Hardware
CIC  12 Idle             BLOCKED Remote Hardware
CIC  13 Idle             BLOCKED Remote Hardware
CIC  14 Idle             BLOCKED Remote Hardware
CIC  15 Idle             BLOCKED Remote Hardware
CIC  17 Idle             BLOCKED Remote Hardware
CIC  18 Idle             BLOCKED Remote Hardware
CIC  19 Idle             BLOCKED Remote Hardware
CIC  20 Idle             BLOCKED Remote Hardware
CIC  21 Idle             BLOCKED Remote Hardware
CIC  22 Idle             BLOCKED Remote Hardware
CIC  23 Idle             BLOCKED Remote Hardware
CIC  24 Idle             BLOCKED Remote Hardware
CIC  25 Idle             BLOCKED Remote Hardware
CIC  26 Idle             BLOCKED Remote Hardware
CIC  27 Idle             BLOCKED Remote Hardware
CIC  28 Idle             BLOCKED Remote Hardware
CIC  29 Idle             BLOCKED Remote Hardware
CIC  30 Idle             BLOCKED Remote Hardware
CIC  31 Idle             BLOCKED Remote Hardware
-----------------------------------------------------------------------
Some times all channel comes to idle mode by restarting asterisk, but 
at times that too doesnt work after which I have to ask the MSC 
managers to reset that particular E1 and everything starts working... 
this to me doesnt sound very good, coz NOC guys would simply get pissed 
off :P

Anyone faced these eccentric problems with chan_ss7 ?

Thanks & Regards,
Mitul Limbani,
Founder & CEO,
Enterux Solutions,
The Enterprise Linux Company (TM),
www.enterux.com