Hi Tom
Thanks a lot for your answer!
On Sun, 27 Oct 2013 21:54:47 -0700
Tom Henderson t...@tomh.org wrote:
On 10/22/2013 08:59 AM, Ramon Hofer wrote:
Hi all
I'm writing my master thesis and would like to use NS to test a
protocol which uses SCTP. It is about routing various hybrid subnets
including Ethernet, Fiber, WiFi, ZigBee, PLC, GPRS and sending data
with SCTP.
According to your wiki, SCTP is not yet implemented in NS-3 [1].
But I found in the archive of this mailing list a thread from last
year where somebody was interested in implementing SCTP for NS-3
[2].
According to this I should use ns-2, right?
I will write a communication framework in C++, which I think would
be better to use in ns-3?
But I could probably find more ready to use modules for ns-2?
Ramon, I think arguments could be made for either ns-2 or ns-3, in
the case of SCTP.
Ok, I will try both.
The group at the University of Delaware put a lot of effort into
developing the ns-2 model, over the course of several years, so if
the emphasis is really on studying the finer points of SCTP, perhaps
you will find that code useful.
I want to study routing protocols and SCTP communication in a hybrid
network mainly for reliability and QoS demands.
From what you write, it would probably be best to start with ns-2?
For ns-3, there is no code available yet, but it appears that a group
may post some code for SCTP in ns-3 shortly; please review this
thread: https://groups.google.com/forum/#!topic/ns-3-users/SfJ8cLXoXhA
Thanks for the link. Sounds promising!
I'm trying to register without a Google account. It seems that I have
managed to subscribe to the ns-3-users Google groups. But I will have
to wait for another mail of the Sctp based Lte Handover in Epc
thread to be able to answer it. But for the moment I will play with
both versions...
There is also the ns-3 DCE kernel code framework; since SCTP is in
the Linux kernel, one might be able to reuse this code (although I'm
not sure whether in your use case it would be suitable). I checked
with Hajime Tazaki about whether SCTP was supported yet for Linux
kernel DCE, and he replied not yet and that it would probably be a
few weeks of work to support CONFIG_IP_SCTP.
Hmm, unfortunately I think I won't be able to do that, I'm on quite
tight schedule.
In general, all things being somewhat equal, you will probably find
more help on the lists when using ns-3, since it is actively
maintained.
On the other hand there may be more documentation on ns-2?
Beside the main documentation, I found a lot of ns-2 tutorials. This is
also the case for ns-3, but the missing SCTP is the reason why I didn't
already go for ns-3...
You mentioned needs for a number of other models: Ethernet, Fiber,
WiFi, ZigBee, PLC, GPRS. I don't think either ns-2 or ns-3 has all
of these.
Ethernet and Fiber are not very important to me. But ZigBee and PLC
are.
To be honest, I haven't looked at ns closely, but I suppose I will be
able to parametrize a new connection type or some kind of scenarion
where nodes fail and recover.
Given all of this, probably it makes sense to try both out (existing
ns-2, and ns-3 once the SCTP code becomes available).
I think, it probably won't hurt to directly contact Madan. I will wait
and see what he anserws to your post from today...
Thanks again
Ramon
