Hi
I wondering by looking at the internal code: like how are the instances of
the stations created.
Means if you go to the mac802.11.cc/.h the variables used pktCTRL_, pktRTS_,
pktTx_ etc. are they ?
- global variables (means for the entire simulation)
- or variables
Hello,
In my simulation, packets are getting dropped and the reason shown in
trace is IFQ. If I change my IFQ length (which initially was at 50), it
doesnt seem to alleviate the problem.
Any ideas why?
Thanks,
Sita
ns-users,您好!
致
礼!
耿蓉
[EMAIL PROTECTED]
2006-04-07
I am not sure, may be because the trace formats have changed between
2.1b8 and 2.29
dhammika
On 4/9/06, Pooja Vyavahare [EMAIL PROTECTED] wrote:
hi Dhammika,
Thank you very much for your suggestion... its working now but still
one problem remains... to get the information from trace
Message: 12
Date: Sun, 9 Apr 2006 16:27:22 +0200
From: Salvatore La Bua [EMAIL PROTECTED]
Subject: [ns] General question about extracted files of ns-allinone
and a FC5 issue
To: NS Users-List ns-users@ISI.EDU
Message-ID: [EMAIL PROTECTED]
Content-Type: text/plain;
hi ,
i am working on ODMRP (ns2.1b8) on ns2.28. the simulation is working fine
but while reading the trace file the error is like :
CBR Logging error
f 199.094331332 _14_ ODM --- 6150 cbr 64 [0 8 800] --- [2:32769
32769:32769 253 0] [703] 2 0
CBR Logging error
f 199.094606286
Dear all,
Can I install ns-allinone-2.28 on Linux Redhat 8.0. Last
time I installed it on Redhat 8.0; it was unsuccessful make and validate
ns-2.28. Is there any patch or bug fix for Redhat 8.0 and where can I
get them?
Thanks in advance.
Ekularn Dhavarudfha
Trace converter has been developed because Trace graph (ns-2 trace files
analyser)
is very slow at parsing ns-2 trace files and converting them to it's own
format (Trace graph format). i have downloded one ,but it only can convert the
file which is 32k. who can send me TRACE CONVERTER which is
On Monday 10 April 2006 07:00, you wrote:
during the installation process some or more files are spreaded over
the system's directory structure?
I was afraid of a wrongly built installation was spreading files over
the
system and I can't recognize them.
In that case, the allinone
ASSERT() IS A C++ function. you can google and find more details
On 4/10/06, narayanan k [EMAIL PROTECTED] wrote:
Dear ns users,
is assert() a macro or a function? I am not able to
find where assert.h is located.
Where is the source code of this macro/function, its
used all over in
For sensing a object their is nothing in normal ns 2 package but their is an
extension for it
http://pf.itd.nrl.navy.mil/nrlsensorsim/
For making base station node you might find the tutorial on manet routing
in ns 2 helpful...just google it...
Regards
Ankit MEhta
On 4/9/06, Hadi JamaliRad
Dear All,
I am using ns-2.29 in simulation of mobile adhoc network using aodv routing
protocol for 50 nodes having all other standard parameters. I want to design a
particular node such that it will send unnecessary bulk packets for consumption
of resources and it may send fictious routing table
Hi everybody,
When i make my new agent code and call the constructor method, it
reports undefined reference to `vtable for myAgent'
what's wrong? how to correct it?
thank you a lot for your sugestions
Hello everybody,
I created 2 CBQ class for a link, and would like to be able to observe
queue size for each class instead of global queue size.
Any help would be GREATLY appreciated.
Thanks a lot.
my code is following :
set cbqlink [$ns link $r1 $dst_tcp(0)]
set topClass [new CBQClass]
set
Hi,
Anybody knows reference or website links to the
subject above?
I need to understand the importance of CDF and learn
how to plot them.
Thank you very much.
Ben.
Send instant messages to your online friends http://uk.messenger.yahoo.com
Hello Everyone,
I just joined to the group and have some installation problems so
you can guess I am a newbie.
I have a Fedora Core 5 with TCL and TK both being 8.4.12 version.
When I try to ./configure Otcl, a v1.11, I get me this error message.
Any idea? Thank you!
checking for
HI users
I am interested in tracing the packet processing at diffrent events/modules
as it passes during the simulation of wired cum wireless scenerio. I am infact
doing resarch in mobile IP implementation and currently using ns2.28 in REDHAT
Linux 8.0
Bonjour tout le monde
j'essaye d'utilser un fichier de trace d'une simulation d'un reseau ad
hoc,mais lorseque j'analyse le contenu du fichier de trace je trouve que aucun
paquets n'es reçu!tous les paquets sont perdus,pourquoi?
Merci pour toutr aide ou tout conseil
hi all,
well i need an old version of ns2 and i cant find it anywhere .. i need
ns-2.26-allinone if available ... so if anybody knows from where to get old
versions. ??
thanx anyways !!
Dear OLSR Experts,
Is it possible to add a route manually in a OLSR node?
Would you please provide some hints?
I will really appreciate the help.
Best regards,
Abdul Awal.
Hi,
In mac_802_11.cc, I have a node address (the ID number, for ex. 0, 1,
etc.) and i can access to the node with the command:
MobileNode *Node = (MobileNode *) Node::get_node_by_address(address);
so i can use the node functions (for example: Node-getLoc(X, Y, Z);)
How Can I access to the
Hi all,
I perform simulation of TCP using NS-2 simulator.
I already read all mails about CBR over TCP.
But, I really not understand about TCP mechanism when CBR is used.
1. use following TCP parameters :
1) CBR packetsize : 500
2) TCP packetsize : default
When I start
Hello Everyone,
I have posted the message containing the below-problem yesterday i didn't get
any answers yet. I want to ask something else which might be a relevant
question. That is if there might be a bash shell incompatibility between
different versions of Fedora. I am now using Fedora 5
[EMAIL PROTECTED] schrieb:
I am just putting this question out there to see if it is possible to
implement. Right now I only have access to one laptop. I am running
ns-2.27 with pclinuxos. So far I was able to 'make nse' and did not
return any error messages however I still can't run the
Hi,
Can any one help me in understanding the MAC flow in ns2.26
AND is any one working on BI_MCMAC . I need to simulate this code.
Please help me., any documentation links and tutorials.
Thanks,
Nagender Reddy
Hello all,
I need to use the Sack or Snack Agent of NS and work with Westwood+ to see
if Sack or Snack can improve Westwood+ (which is based
in Newreno) performances. Unfortunately, it seems that Sack1 Agent in
NS2.29doesnt perform very well compared to Newreno. Is there
something special in
the
Hi users I am currently studying the mobile IP behaviour using ns2.28. During
simulations I noticed a serious bug in mip implementation of ns2.28 . That is
too long handover time. It was difficult for me to trace the actual cause.
How ever in the ns mail archieves I read the same problem
Hi,
I want to insert an extra header of my own so that I can make some routing
decisions based on the fields in that header. For example, in case of TCP, I
want the TCP header to be encapsulated in my custom header and my customer
header (along with TCP header and data) encapsulated in the
Hi all,
I am now using NS2 to simulate wireless sensor networks. I think that it is
a very useful tool for my purpose.
I would like to discuss with anybody who have the same interest with me.
Do you guys have experience and notes or tactics on simulating wireless
sensor networks with NS2? I
Hello ns users!
I am using ns 2.29 on Mandriva 2006 and i'm trying to run a simulation with 50
nodes using the DSDV routing protocol, in order to obtain a graphic
representation of the parameteres. I have begun with the
wireless-dsdv-newnode.tcl script in the ns-allinone-2.29/ns-2.29/tcl/ex
#
==
# Define options
#
==
set val(chan) Channel/WirelessChannel
set val(prop) Propagation/TwoRayGround
set val(netif) Phy/WirelessPhy
set
Sorry i forget to ask you my question ;i don't know what is the raison,i don't
observe that ther is a change between a paquets,all the paquets are
droped?!why,i use the file generated with cbrgen.tcl please help me its very
urgent,thak you for your helping
hi,
The code u have written is correct ..
and txpower and rx power are in watt and initial energy is in J..
Im not sure why they are like this.
Hope i've answered atleast one of ur questions.
All the best
Amrutha.
All,
Can someone please point me to a document that explains in details the
best mearurements for the energymodel parameters, (energy-aware nodes).
i.e. below is an example, but I am not too sure how can I define the value
for the parameters below, if anyone can show me a good document I will
hello alaeddine
hoping that u r very well
I would like to produce the tracing of xgraph for a
scenario of 50 node it dosnt worke
but in 3 node as indivisual it works can u help me
please
mohd hammad
__
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Hello Mowly,
You might want to try the Pcap/BPF Network Object to read a packet trace
from a file in tcpdump format.
http://www.isi.edu/nsnam/ns/doc/node574.html
Best regards,
Svilen
[EMAIL PROTECTED] wrote:
I am just putting this question out there to see if it is possible to
implement.
hello alaeddine
hoping that u r very well
I would like to produce the tracing of xgraph for a
scenario of 50 node it dosnt worke
but in 3 node as indivisual it works can u help me
please
mohd hammad
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail
HI Friends,
Does DSDV stores the Routing table of its neighbours. I was
unable to get it from the code of DSDV. And if it doesn't stores the routing
table, then how the increamental updates works.
Plezzz help.
jeevesh kumar.
Hi friends,
What are the values to be set in the TCL file to make
the transmission range 100m. In some mail i got some pointer for this
but i am not getting them clearly. There i have to set Pt_ variable to
a
fixed value. Is it the only value I have to change? or it need some
Hello all
I have a topology like this
__n2
/ \
Src---n1/ \n4__Dst
\___ /
n3
From the src the packets are send both
Hi Jeevash
There are two method to do it.
Method a)
You calculate the RxThreshold using a small program written in C called
threshold.cc locayed in the folder ns-2.29/indep-utils/propogation/
compile the file as g++ threshold.cc
then run the program /a.out with the required distance you want
Hi,
First, in general, CBR is used for UDP traffic, not with TCP. You
should be able to tell the specific reason why you use CBR over TCP.
And the question you asked is also dependent upon a bottleneck link
speed and a bottleneck queue size. If the dely-bandwidth product is
larger than the CBR
transmission range defined internally by distCST_
the transmission range is suppose to be calculated using the parameted
below (as you mentioned) and propagation model however by looking at the
Wireless Physical code, the propagation model is not implemented yet and
thus the result is as -1
Sasan Sahraei schrieb:
transmission range defined internally by distCST_
This is only the maximum assumed interference range for a propagation
model and will be used to speed up the calculation of packet receivers.
the transmission range is suppose to be calculated using the parameted
Hello,
Why the goodput measured by [$sink set bytes_] is greater than the
throughput measured with [$tcp set ndatabytes_] ??
This means that the receiver get more data than what the tcp sender has sent
??
Julien
Vinod schrieb:
im working in qos routing in mobile adhoc networks.
can anyone tell me why the default value of bandwidth is 0 in link layer
of type LL (wireless routing simulation). Does that mean its not used or
something else? I can see that the delay value is set to 25us by
default.
Hello ns-users, please help
Anybody know how to debug memory in ns2? as applied to OTCl objects?
I`m use ns-2.29/cygwin(windows)
Thanks in advance
--
Best regards,
skipper-com mailto:[EMAIL PROTECTED]
Thank you for all the people that help me to implement SIP protocol in NS.
Especially the guy that gave me the ns-2.27 patch I’m sorry because I delited
the e-mail so I forgot his name so thank you guys !!
OK my next part of the project is to trace the traffic from the .tr file
generated by
Hi every body ,
i try to use a tcl/tk graphic interface , but when i add ns the program
declare an error .
ex:
in example.tcl when i create only widgets and i execute wish example.tcl
it 's run very well , but when i add set ns [new Simulator] at the same
program , it doesn't execute .
Dear friend:
I want to ask whether there is an appropriate routing protocol in
NS2.29to cooperate with SMAC. I tried to test the end-to-end delay of
SMAC with
test-suite-smac-multihop.tcl,but when I set CBR packet size 100bit and
interval 1sec, I got 400 sec end-to-end delay. The
Dear users,
I want to transfer information from mac layer to network layer
in NS2 simulatiion. Please help me regarding this.
Regards.
abdulsamad.s
CSE,MNNIT
INDIA
Thank you Gilles
I followed your guide and the installation succeded
However I still have problems installing xgraph
This is the log
dialog.c: In function `make_msg_box':
dialog.c:780: warning: passing arg 2 of `getline' from incompatible pointer
type
dialog.c:780: error: too few arguments
Dear ns users,
I am running ns-allinone-2.28 successfully on my
RedHat Linux 9.0 PC. But when I ran
./setdest -n 20 -p 2.0 -s 10.0 -t 200 -x 500 -y 500
scen-20-test
It aborts at:
void
Node::RandomSpeed()
{
/* original version */
if (VERSION == 1) {
speed = uniform() *
Hi,
I'm implementing a fully working script about directional antenna in ns-2.
The last thing that I have to do is an antennas' switching logic.
The problem is:
I have a pointer to a Node (MobileNode *Node) and therefore i can use the
node functions (for example: Node-getLoc(X, Y, Z);)
How Can
Hi all,
Can anybody help me how packet retranmission is done in ns2 for ALOHA protocol.
--
Er. Kapil Suchdeo
93032-07702
Dear Ns-users,
I am looking for a solution that would allow me to dynamically monitor the
number of bits received at a node for a certain flow id fid.
For the moment I am using the variables of a queue monitor (parrivals_ ,
barrivals ...) but it is not accurate enough, as I need to have this
Dear Daniel,
Thanx for your reply.
Actually, my problem involves calculating the effective bandwidth of a
wireless node (more specifically in a MANET). I guess the bandwidth_
variable of MAC or Phy layers dont give this value.
I am using the default parameters given in the AODV
Vinod schrieb:
Actually, my problem involves calculating the effective bandwidth of a
wireless node (more specifically in a MANET). I guess the bandwidth_
variable of MAC or Phy layers dont give this value.
I am using the default parameters given in the AODV implementation.
To put it
please, don't take my previous e-mail into account. I have found a solution:
the object flow monitor (http://www.isi.edu/nsnam/ns/doc/node288.html) is
exactly what I need.
regards,
Gilles
2006/4/13, Gilles Bertrand [EMAIL PROTECTED]:
Dear Ns-users,
I am looking for a solution that would
Hello everybody
I have a problem that makes some days I am blocks.
I achieved several scripts of mobility in order to draw the curve: number of
packets received / number of packets gave out according to the mobility.
I generated several scripts with. / setdest,with variable M between 10 and
Hi,
I'm writing a routing protocol and have been racking my brains on what could
possibly be happening to these packets. Everything else seems to be working
ok, but when i send these particular packets (ORP_RREP), the receiver does
not seem to be receiving them. I put printf statements upon
Hello,
I would like help on understanding how AODV computes routes in the
following scenario:
Node A wants to send a packet to Node B (Both are stationary to begin
with). Packets are broadcast and the next hop is based on the route that
was decided. Node B finally receives the packet.
Now if
Thank you for the hint, but I try to use nam as the same user as when I
installed it.
more strange: if I launch nam form the prompt it runs well. The problem
appears only when a tcl script launches it
sergio
From: Miguel Sepulcre [EMAIL PROTECTED]
To: Sergio Torassa [EMAIL PROTECTED]
Dear ns users,
I am using ns-allinone-2.28 for cygwin on XP-SP2. I am working on a new
routing approach with an additional metric for AODV. My routing
decision is based on another metric which I can get only after
receiving a route reply. When a packet is put into queue in
rt_resolve(.), I
I would like to set values in a packet header using Tcl. For example,
set the packetSize_ variable in the Ping header (found in
ns-allinone-2.29/ns-2.29/ns-tutorial/examples). However, when I set
packetSize_ in Tcl, it does not change the default value. The
tcl/lib/ns-default.tcl file has the
hi
i want to install ns-2.29.2 all in one package on fedora core four
but it always give me error or the other kindly help me out
=
mostly it give error that taclcl failed
kindly help me out and tell me is this due to corrupt download ??
secondly can u plz list the steps to
Oops. I know what the problem is. The set command does work. However,
the value is not changed until the constructor completes execution.
Shruti Gorappa wrote:
I would like to set values in a packet header using Tcl. For example,
set the packetSize_ variable in the Ping header (found in
Hi,
If any of the packages in an allinone distribution causes a problem,
try to install it individually. Try to be careful with the configure
and Makelife files, you might need to change them, too, after
installing a package alone.
Once I had to install ns-2.28 and ns-2.29 to rad hat 3.0 64
Hello everybody
I want to installing random-waypoint model in ns-2.27 or ns-2.29,how can i do
to install it?
please help me,thanks
-
Faites de Yahoo! votre page d'accueil sur le web pour retrouver directement
vos services préférés :
Hi ,my ns friends:
I am quite confused by some code in wireless-phy.cc,it is:
double begin_adjust_time = MIN(channel_idle_time_, temp);
double finish_adjust_time = MIN(channel_idle_time_, NOW+txtime);
double gap_adjust_time = finish_adjust_time - begin_adjust_time;
if
Hi samad
I'm also working on the MAC layer, so if u can be some what more specific
then i may be able to help you.
Like what exactly you want to know and by network layer you mean the network
interface layer??
On 4/13/06, samad abdul [EMAIL PROTECTED] wrote:
Dear users,
I want
Hi Jeevesh,
DSDV stores the Routing table for each node that is modified by the
information received by the node's neighbor nodes. rtable.h file
contains class RoutingTable and rtable.cc stores each entry, contains
information about the current node's neighbors, into rtable_ent *rtab
Hi Jeevesh,
Actually DSDV doesn't have the all the neighbours's routing table with
it, at the time of calculation of shortest path. it has got only
necessary information gathered by the neighbor nodes during triggered
and periodic update.
It gets the routing update packet from its
thanks tathagata and all who answered
effectively I added the path of that directories, but in the wrong form
(e.g., path=c:\cygwin\ns-allinone-2.29 instead of path=/ns-allinone-2.29
and similar)
now the more difficult task: understand ns ;-)
sergio
From: tathagata dasgupta [EMAIL
Hello everybody
that makes one week i have this probleme and it doesn't advance
i want to plot the curve nombre of paquets received / nombre of paquets send
in fuction to the mobility,
so i do it this stages:
1) i generated a scenario with ./setdest -n 50 -p 5 -m 0 - M x -t 200 -x 500
Hi, people. I try to do some modifications in the manner that 802.11 decrement
the Contention Window (CW) but I can't find the function in mac-802_11.cc that
return this variable to CWmin when the tx is successful. Anybody can help me?
Thank you a lot
Hi!
I downloaded and installed the HCCA patch for NS-2.27 from
http://info.iet.unipi.it/~cng/ns2hcca/
However, I am not able to find out how the stations get the access to the
channel. Consider the offline TXOP list that is created. Suppose it contains
the TXOP times for the stations
hi,
I m getting an error that no display variable set or no display when I try
to run nam on cygwin...if ne1 can hlp I would be obliged.
Tuhin Kanti Sharma
hi,
I m getting this error:
$ nam MySnoop.nam
nam: no display name and no $DISPLAY environment variable
when I try to run nam on cygwin.if ne1 can hlp I would be obliged.
Tuhin Kanti Sharma
I have found a call to function rst_cw in mac-802_11.cc but the function is
not there. Do you know where it is?
Thak you
- Original Message -
From: Sebastián Guazzini
To: usuarios_ns
Cc: meschoyez3 ; meschoyez2 ; meschoyez
Sent: Friday, April 14, 2006 10:43 AM
Subject: [ns] Reset CW
Hi,
I am running ~ns-2.29\tcl\ex\snoop\MySnoop.tcl.
This tcl file is making a trace file out.tr.
In the trace file there is an h, what does this h stand for.
Help wld b appreciated.
Other identifiers:
+:enqueue
-:dequeue
r:recieve
f:forward
h:?
Tuhin
Dept. of CS, DU
Vinod, Kapil, Kanthi,
Thank you for your replies. I think the timer refresh is not sufficient
enough in my case and the route (re-)requests are happening not so
frequently i.e. it is not in sync w/ the mobility (i am not yet sure how
that can be handled). Due to this, there is packet loss and
Please check mac-802_11.h. Regards,
Inanc
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Sebastián Guazzini
Sent: Friday, April 14, 2006 8:00 AM
To: usuarios_ns
Cc: meschoyez3
Subject: [ns] Fw: Reset CW
I have found a call to function rst_cw in
hellon everybody;
I want to generate ERPGM mobility scenario but im wondering if there is a
generator for such mobility model else how to implement this by tcl script?
thank you
-
Faites de Yahoo! votre page d'accueil sur le web pour
Hi all,
I hope you are doing fine. Can anyone help me with this issue?
I am trying to use Qiang Ni's code on a Fedora 2 environment. Aparently all
variables are set, even though I face the error below:
(There is lots of this before)
Hello Tuhin Kanti Sharma,
You are probably trying to use NS on a linux server with ssh. Am I
wrong? Anyway, typing the following commands in your console should help
you a lot:
export DISPLAY = localhost:0
and if you are using ssh, please use the option -Y after having set the
DISPLAY
in addition, I guess you need to run nam through startup batch file of
XWindows simulator, make sure X11 is installed and from bin directory you
can run startxwin.bat
Sasan
Hello Tuhin Kanti Sharma,
You are probably trying to use NS on a linux server with ssh. Am I
wrong? Anyway, typing the
Hi,
I am currenty coding a MANET protocol in NS. In routing agent, I am
able to send the packets to neighbouring nodes but when nodes are trying to
send the reply I am getting an error Invalid Control Packet from
802.11physical layer code. I have not changed anything in the physical
layer,
hi all,
i want to simulate alternate path routing for multicast.
can any one plz give some idea about it
regards..
-
Jiyo cricket on Yahoo! India cricket
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Hi All,
I am generating both trace formats (old and new) for the exact same
simulation, and for instance I count total number of messages sent as
below (in my awk file)
$1~/s/ /AGT/ { sent ++; }
but I get two different results
now I wonder, which one of the trace files are accurate? which
Thnx everyone for their help, my nam indeed is working.
I am not aware whether I am using a linux server with or without ssh , I m
using cygwin on windows XP. Also
export DISPLAY=localhost:0 is working, but for this you need two terminals
and 1 terminal should connect with the other.
I did modify
Sasan,
both versions of tracefile report the same information.
The
difference only lies in the format (actually, the
new trace format is
somehow more complete).
So they are accurate in the same way, but the
point
is that you can't use the same awk script on both!
You have to
write two
NS2 faqs in the link below
Good NS2 faq
http://web.syr.edu/~dchen02/FAQ.txt
--
Ankit Mehta
Undergraduate
Computer Science and Engineering
Indian Institute Of Technology,Madras
Chennai,India
Hello ns users!
I'm using ns2.29 and i want to make a simulation of a 50 nodes MANET scenario,
using AODV as the routing protocol. I want to get an xgraph representation of
the bandwidth, packet delivery ratio, traffic(number of packets, routing tables
sent between nodes) and delay. My tcl
hello
thank you for your reponse,i would like to ask you a question,the trace file
its contain juste the cbr or tcp messages,or this contain the HELLO and TC
messages also.
because i remarque that the nombre of paquets receive is more than the number
of paquets send and i think its not
hi,
ive a doubt in the AODV implementation in ns-2.
Can anyone tell me a way to find the source of the pkt, given only the
Packet P. That is ... I want to know the originator of the pkt.
thanx,
vinod
--
Vinod Kone,
Btech,Computer Science,
VIII sem,
Room 177,Kapili,
IIT
Hello everyone,
I am trying to modify LEACH code, which is a cluster-oriented sensor network
protocol. It uses CDMA technique, using different code for each
cluster-node/cluster-head-node communication and cluster-head-nodes/Base
Station (BS) communication. In the protocol the CHs (cluster
Hi,
I have been investigating NS2 for research purposes for the last several
weeks. I have a very basic question and would really appreciate if you could
shed some valuable light on it.
I really stepped through each line of the code but can't really find when
and where the simulator assigns
Hi,
I need to install an implementation of HCCA mode of 802.11e for ns2. After
spending a week of trying to install Qiang Ni's and University of Pisa's
implementation on both cygwin/windows or linux I still haven't got far. I have
run into errors after errors.
Apparently the latest
check here, you might find the answer:
http://k-lug.org/~griswold/NS2/ns2-trace-formats.html
Sasan
-- Forwarded message --
From: Tuhin Kanti Sharma [EMAIL PROTECTED]
Date: Apr 15, 2006 7:57 AM
Subject: [ns] What does h stand for in trace format
To: ns-users@isi.edu
Hi
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