when i write : $ sudo chmod 0755 /usr/local/nam
it return this message : chmod: cannot access `/usr/local/nam': No such file or directory

when i write : $ which nam ,it return :/usr/local/bin/nam

← #46 .

Sorry for the typo.
It is of course $ sudo chmod 0755 /usr/local/bin/nam

It still the same problem " couldn't open "/home/memoire/.nam-port": permission denied " the same message

← #48 .

Well, you could delete the file .nam-port :
$ sudo rm .nam-port

It is work ok , think you very very much , i'm so gratefull

I'm back

My questions are :
Q1 : i find under ns2.34 a folder called "sctp" is that mean that i can use sctp protocol in my simulation ?
Q2 : there is two version of sctp called :CMT-SCTP and MPSCTP , is there a patch for these two transport protocols ?

← #51 .

SCPT/CMT seems to be included from ns-2.33, up :
ns-2.34/sctp/{ sctp-cmt.cc, sctp-cmt.h }.

No traces of any MPSCTP code.

SCTP-CMT tcl examples
. https://groups.google.com/forum/#!ms...o/29vSZuc6Kh0J
. http://network-simulator-ns-2.7690.n...es-td6584.html
. http://blog.163.com/xjtshua@126/blog...1112510136559/
. http://xjtshua126.wap.blog.163.com/w...ID=xjtshua@126


Other SCTP-CMT
http://www.isi.edu/nsnam/ns/CHANGES.html
"Concurrent Multipath Transfer with Potentially Failed(CMT-PF) extension is default now.
To use CMT, set useCmtPF tcl bindable variable to 0 at the data sender."
http://blog.tianya.cn/blogger/post_r...PostID=6970392
"To use CMT, set useCmtReordering, useCmtCwnd and useCmtDelAck 1 at the sender,
and useCmtDelAck and useDelayedSacks to 1 at the receiver."


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Hi Sir!
plz i need your help i have installed NS2.34 and a tried to add lte patch but when i tried to simulate enaya.tcl example there's a problem , than i reinstaled ns2.34 but this error is shown:

tcl8.4.18 make succeeded.
Warning: tclStubInit.c may be out of date.
Developers may want to run "make genstubs" to regenerate.
This warning can be safely ignored, do not report as a bug!
Installing libtcl8.4.a to /home/aziza/Bureau/ns-allinone-2.34/lib/
cp: cannot create regular file `/home/aziza/Bureau/ns-allinone-2.34/lib/#inst.20046#': Permission denied
rm: cannot remove `/home/aziza/Bureau/ns-allinone-2.34/lib/libtcl8.4.a': Permission denied
mv: cannot stat `/home/aziza/Bureau/ns-allinone-2.34/lib/#inst.20046#': No such file or directory
ranlib: could not create temporary file whilst writing archive: No more archived files
make: *** [install-binaries] Error 1
tcl8.4.18 installation failed.
Tcl is not part of the ns project. Please see www.Scriptics.com
to see if they have a fix for your platform.

Hello ,
Q1: please can you provide to me an example of MPTCP ?
Q2: you provide to me examples of SCTP-CMT , can you help me to find a TCL code only for SCTP ?
Q3: Is WIFI included to ns by default or should i add it like WIMAX and LTE ?

← #54 .

MPTCP example (mptcp-sample.tcl) : MPTCP-example.tar.gz
https://drive.google.com/file/d/0B7S...ew?usp=sharing

? Not quite sure what these do (csma***.tcl)
https://github.com/dnlove/ammac-ns2/tree/master/duy/tcl

WIFI : No reason not to use this : "lwx+LTE+dccp+MPTCP-ns234.patch".

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Think you very much

For WIFI i want to use it in a scénario im my (WiFi-Wimax) or (WiFi-LTE ) that is why i ask .

← #54 .

More examples.

SCTP : Google .. ns2 sctp simulation ..
https://www.google.com/webhp?hl=all&...ctp+simulation
Example http://www.youtube.com/watch?v=EF1oXE_5DAc

SCTP/CMT : Google .. ns2 sctp-cmt.tcl ..
https://www.google.com/webhp?hl=all&...2+sctp-cmt.tcl
Example.tcl :
http://blog.163.com/xjtshua@126/blog...1112510136559/
The example "sctp_cmt.tcl" works perfect with a default "ns".
And also with the executable 'ns234-wimax-lwx+DCCP+LTE+MPTCP'.

Another 'sctp_cmt' https://groups.google.com/forum/#!ms...o/29vSZuc6Kh0J

INFO : [tomh]Fri June 23 07:25:00 PDT 2006:
Updated SCTP implementation; patch contributed by Janardhan Iyengar: The Concurrent Multipath Transfer (CMT) extension to SCTP has been added. To use CMT, set useCmtReordering, useCmtCwnd and useCmtDelAck 1 at the sender, and useCmtDelAck and useDelayedSacks to 1 at the receiver. You can turn OFF the DAC algorithm by setting useCmtDelAck to 0 at both the sender and the receiver. These variables will (hopefully) get consolidated by the next release.
( Quoted from the ns2 file "CHANGES.html" ).


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Think you very much

Hello Sir

I have two questions about programming in ns2 so

Q1 : I want mesure the efficiency , equity and loss rate of network and i will use it to mesure the performance of this network so my question is after i create the network with TCL code what should i use to calculate this parameters ( efficiency , equity , loss rate )

Q2 : HOW can i change the results to graph ( curve ) by using xgraph ?