[asterisk-ss7] Internal protocol analyzer

[Matthew Fredrickson]

Tim Danner wrote:
> Do you know if libss7 has the same capabilities?  But let's say we use these SS7/ISDN capable cards as a SS7 or ISDN protocol analyzer, no such development work there?  Digium, Sangoma?
> 

It does, sort of.  It has an internal protocol dumper/analyzer.  You use 
`ss7 debug linkset x` at the Asterisk CLI and it will dump the debug as 
well as the messages' data.

> Why ask for two or more, when you can try and get it all in one.
> 
> But this is also good to know about Wireshark.
> 
> -----Original Message-----
> From: Kristian Nielsen [mailto:knielsen at mysql.com]
> Sent: Tuesday, September 25, 2007 11:19 PM
> To: asterisk-ss7 at lists.digium.com
> Subject: Re: [asterisk-ss7] Internal protocol analyzer
> 
> 
> "Tim Danner" <tdanner at pacwest.com> writes:
> 
>> Just a question for this list.  Has there been any development work here for
>> an internal protocol analyzer for either ISDN or SS7?
> 
> In chan_ss7, you can use the command "ss7 dump start ..." to send protocol
> data to a file, and then use ethereal (now renamed to wireshark) to analyze
> it.
> 
> For details, see
> 
>  http://www.voip-info.org/wiki/index.php?page=Asterisk+ss7+commands
> 
>> My thoughts here are that something like that could be developed against the
>> card drivers for both transmit and receive, and relay to a process just for
>> decoding the packets.  I am also aware that this could be more processor
>> intensive, but could be developed many different ways so not to scan
>> everything, except for what needs to be decoded.  I think this would help
>> out a faster turn around of any signaling issues.  Not everyone can afford
>> expensive external analyzers.
> 
>  - Kristian.
> 
> 
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-- 
Matthew Fredrickson
Software/Firmware Engineer
Digium, Inc.