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Hey Michael,

Thanks a lot!!!
I got it that while setting up an association, the SUT can be configured as
server or a client.

I'm looking at the guile basics. In the meantime, can you please give me just
one example of creating an association using stt?

Till now I got a lose idea of the tool and its usage (Thank God, I got one
more post of urs in the mailing list regarding usage of stt):

Probably I have to do following steps:

1. Open guile interface using command ./stt

2. Load sctp.scm using command ====>
(load-from-path "/absolute/path/to/the/file")

3. Configure IP and port parameters in sctp-param-testtool.scm

4. Load sctp-param-testtool.scm, using command ====>
(load-from-path "/absolute/path/to/the/file")

What to do next???????????? :(

Finally, I want to create an association and then sending configured data
packets
I tried "runsctptest" but its saying error: "NON-EXISTENT"

Thanks,
Arif

-----Original Message-----
From: Michael Tüxen
[mailto:Michael.Tuexen AT micmac.franken.de]

Sent: Monday, December 20, 2010 1:06 PM
To: Mohd Arif
Cc:
sctp-discussion AT sctp.de
Subject: Re: [SCTP-Discussion] how to use stt tool? Please help...

Hi Arif,

have a look at the following test from the ETSI SCTP test suite:

(define (sctp-d-v-8-1-help peer-server? peer-addr local-port peer-port mtu)
(sctp-cleanup)
;; set up a asscociation first.
(let* ((tcb (if peer-server?
(associate-from-port peer-addr local-port peer-port
tester-os tester-mis)
(accept-association tester-os tester-mis)))
(header (get-header tcb))
(local-port (get-source-port header))
(local-tsn (get-local-tsn tcb))
(peer-addr (get-peer-addr tcb))
(peer-tsn (get-remote-tsn tcb)))
(sctp-send header
(vector (make-data-chunk local-tsn 1 0 0 (make-random-bytes (-
mtu (+ 20 12 16)))))
peer-addr)
;; Wait for the DATA chunk to receive.
(sctp-receive-chunk data-chunk?)
;; Acknowledge it.
(sctp-send header
(vector (make-sack-chunk peer-tsn 0 #() #()))
peer-addr)
(sctp-send header
(vector (make-abort-chunk #f))
peer-addr)
stt-test-result-passed))

In combination with the setting in sctp-param-testtool.scm you
can control if the above test acts as a server or client:

(define sut-is-server #f)

Best regards
Michael
On Dec 20, 2010, at 5:17 AM, Mohd Arif wrote:

> Hi Machael,
>
> Thanks a lot for your responses!!!
> It's helping me a lot.
>
> Can you please clarify one more point to me?
>
> The SCTP association is a server-client connection.
> If one endpoint is SUT and other endpoint is test tool based.
> Then how will I configure my SUT to be a server or client so that it will
> establish a connection with the other endpoint (test tool based endpoint)?
>
> Thanks for your continous support.
>
> Regards,
> Arif
>
> -----Original Message-----
> From: Michael Tüxen
> [mailto:Michael.Tuexen AT micmac.franken.de]
>
> Sent: Sunday, December 19, 2010 7:49 PM
> To: Mohd Arif
> Cc:
> sctp-discussion AT sctp.de
> Subject: Re: [SCTP-Discussion] how to use stt tool? Please help...
>
> On Dec 19, 2010, at 2:41 PM, Mohd Arif wrote:
>>
>> Hi All,
>> Hey Michael, Thanks for the reply. But here is a small twist.
>>
>> The link http://sctp.fh-muenster.de/sctp-testtool.html/ states
>> that in order to use the stt tool "the operating system must NOT provide
>> kernel SCTP support."
>> I have to use a tool to verify the changes that will be
>> done in kernel SCTP code. So I think the stt tool can't be used in my
>> case. Kindly confirm.
> You need two systems: One being the system under test (SUT) which runs your
> modified
> kernel stack, and the other one, which runs the test tool and does not have
> an
> SCTP kernel implementation.
>>
>> Further I found one more tool at
>> http://sctp.fh-muenster.de/m3ua-testtool.html/ which states that "the
>> operation system must provide kernel SCTP support."
>> But again the tool is guile based and I am clueless about
>> its usage. Kindly help.
> This is for M3UA tests, not for SCTP tests.
>>
>> My sole purpose is to get an application or tool which can
>> create or generate SCTP data packets (duplicate packets, very low and very
>> high TSN packets etc)
> So you need two systems as indicated above...
>
> Best regards
> Michael
>>
>> Time is running out for me. It is very urgent and I will be really
>> grateful if anybody can suggest.
>>
>> Thanks,
>> Arif
>>
>> -----Original Message-----
>> From: Michael Tüxen
>> [mailto:Michael.Tuexen AT micmac.franken.de]
>>
>> Sent: Saturday, December 18, 2010 4:35 PM
>> To: Mohd Arif
>> Cc:
>> sctp-discussion AT sctp.de
>> Subject: Re: [SCTP-Discussion] how to use stt tool? Please help...
>>
>> On Dec 18, 2010, at 10:06 AM, Mohd Arif wrote:
>>
>>> Hi All,
>>>
>>> Please help!!!
>>>
>>> I want to verify the SCTP implementation by generating and configuring
>>> different SCTP packets like high TSN data chunks, duplicate data chunks
>>> or duplicate INIT chunks.
>>>
>>> To achieve the same, I have installed stt-0.9.9b and download sctp-tests
>>> from following location:
>>> http://sctp.fh-muenster.de/sctp-testtool.html/
>>>
>>> I am new to guile based tools and don't know how they work.
>>> Please help me out and give me steps to generate the packets using stt
>>> tool.
>>>
>>> In the meantime i am trying to get the usage of the software.
>> Hi Arif,
>>
>> you might want to take a look at the implementation of the ETSI conformance
>> tests to figure out how to write simple tests.
>>
>> Best regards
>> Michael
>>>
>>> Thanks,
>>> Arif
>>>
>>>
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It shall not attach any liability on the originator or NECHCL or its
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this email are solely those of the author and may not necessarily reflect the
opinions of NECHCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification,
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is
strictly prohibited. If you have
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• [SCTP-Discussion] how to use stt tool? Please help..., Mohd Arif, 12/18/2010
  • Re: [SCTP-Discussion] how to use stt tool? Please help..., Michael Tüxen, 12/18/2010
  • <Possible follow-up(s)>
  • RE: [SCTP-Discussion] how to use stt tool? Please help..., Mohd Arif, 12/19/2010
    • Re: [SCTP-Discussion] how to use stt tool? Please help..., Michael Tüxen, 12/19/2010
  • RE: [SCTP-Discussion] how to use stt tool? Please help..., Mohd Arif, 12/20/2010
    • Re: [SCTP-Discussion] how to use stt tool? Please help..., Michael Tüxen, 12/20/2010
  • RE: [SCTP-Discussion] how to use stt tool? Please help..., Mohd Arif, 12/21/2010

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