[ns] TCP Retransmission Timeout-reg
hi all!!! does tcp RTO value vary for each packet??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] congestion ctrl phases in trace file
hi., is it possible to get the congestion control phases(slow start,congestion avoidance,fast ret and fast recovery) in trace file -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] packet drop in ns2-its urgent!!!
hi plz anyone suggest me how to make more number of packet drops using tcl -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] To print four phases of congestion avoidance algms in trace file
hi!!! Is it possible to print when the pkt enters into slow start ,CA ,Fast Ret and Fast retransmission phase in trace file in ns2?? if so how to print?? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] explanation newreno.cc file in ns2
hi!!! can anyone explain me the fast retransmit and fast recovery action in new reno.cc file??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] seq id analysis of ns2 trace file
hi all., i tried to analyze the number of packets retransmitted from trace file using awk script... i hav traced out the seq count (since each packet has unique sequence id) and i got the count values as follows, Index: 75 Count: 1 Index: 76 Count: 1 Index: 77 Count: 1 Index: 78 Count: 1 Index: 79 Count: 1 Index: 80 Count: 1 Index: 81 Count: 23 Index: 85 Count: 1 Index: 88 Count: 2 Index: 91 Count: 3 Index: 93 Count: 2 Index: 95 Count: 2 Index: 97 Count: 2 Index: 99 Count: 2 Index: 101 Count: 2 Index: 103 Count: 2 Index: 105 Count: 2 Index: 107 Count: 2 can any help me to know the reason why the ack for seq id 81 is sent 23 timesis it possible to send dat much ack ??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] newreno tcp explanation help-reg
hi all!! plz, can anyone tell me where the fast recovery and fast retransmit mechanisms is coded in tcp-new reno.cc file -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] trace file analysis in ns2
how to make row and column comparison in trace file of ns2 using awk script??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] retransmitted packets count in ns2
hi, can anyone tell how to find number of retransmitted packets due to timeout from trace file (or) from tcp.cc in ns2.34...plz do help me its urgent -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] dupack count esyimation in ns2
hi all!!! can anyone explain me how the dupacks_ (i.e)dupack count is calculated in tcp.cc -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] add-dupack in ns2
hi all, how to find additional dupack variable in ns2? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] trace file analysis-reg
hi everyone,if i add the following line in tcl, $tcp2 tracevar nrexmitpack_ $tcp2 attach $tracefd i can get the count of the retransmitted packets in the trace file as follows, 73.23503 2048 1 4194307 0 nrexmitpack_ 1 can anyone explain me wat does each row represents? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] awk script to trace dupacks
can any one tell me how to find number of dupack ack received from trace file using awk script.. -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] retransmitted packet loss recovery-reg
hi all,i need a solution to implement my project...is it possible to recover retransmission lost packets by using SACK TCP... kindly please suggest me wid some solutions... -- Reagards., R.Abinaya,B.Tech,(M.E)
Re: [ns] how to access the variables in .cc files?
hi all,wat does nrexmitpack_ refers??? On Tue, Feb 5, 2013 at 4:10 PM, Saravanan Kandasamy wrote: > Mate, > > Do post this to the mailing list mentioning > 1. what you like to achieve, > 2.what you have done so far (research in internet, mathematical > analysis, logical deduction, changes in codes) to show you had made > sufficient effort in attending this problem yourself > 3. what is the specific bottle neck you are facing now > > If I am convinced you had done sufficient effort, I may try to come in to > help. > > rgds > Saravanan K > > On Tue, Feb 5, 2013 at 4:36 AM, abinaya rajendhiran > wrote: > > hi sir, > > am ding ma pg project on ns2, am new to ns2,can yo guide me how we > > can find the number of retransmitted packets from trace file...? > > > > On 2/5/13, Saravanan Kandasamy wrote: > >> > >> Dear Shiny, > >> > >> This is a more of a programming question rather than NS2. Perhaps you > >> can check with other programming related forums. > >> > >> In the programming point of view for sure it can be done but you have > >> to check if it is logically sound from simulator or real life > >> implementation point of view. Assume you like to read a content of > >> source node address of an ACK packet from MAC layer (mac-802.11.cc) at > >> Physical Layer (wireless-phy.cc), since current frame format of ACK > >> does not carry that information, you may create a new field to carry > >> this information for you. So when you read it at physical layer, your > >> are not only reading the variables from two different files, but also > >> logically sound, as you are reading the packet content which flows > >> from MAC to Physical layer when it flows out from destination (Data) > >> node. > >> > >> Good Luck. > >> > >> rgds > >> Saravanan K > >> > >> On Wed, Jan 30, 2013 at 4:29 AM, shiny wrote: > >>> > >>> hi all, > >>> how to include variables from one .cc file to other? > >>> > >>> -- > >>> With Regards, > >>> John Shiny.J > >> > >> > > > > > > -- > > Reagards., > > R.Abinaya,B.Tech,(M.E) > -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] awk script to read flags
hi all,how to write an awk script to read flag bit set (i.e,C,N,A) in trace file of NS2??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] rto value in tcp.cc
hi all!! does anyone know in which variable rto value is maintained in tcp.cc file??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] when does "A" flag set
hi all, does "A" flag in trace file denote the packet is retransmitted??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] to trace rto value
hi does any one know how to trace rto value using tcl in ns2??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] detection of retransmitted packets
hi all,how to detect the retransmitted packets from the trace file in ns2?? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] identify dupack from trace file
how to identify duplicate acknowledgement from trace file of ns2??? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] cwnd_ value from backend
hi everyone!!!does anyone hav idea about how cwnd_ value is obtained from backend in ns2? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] cwnd value calculation of ns2???
can anyone tell me how cwnd value for a tcp is estimated in ns2? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] to find no of ack received
hi eveyone, can any one help me to find,in which variable no of ack received is defined in backend files of ns2 -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] bandwidth estimation using rtt
hi can any help me to how to calculate available bandwidth in ns2.34 usiing RTT and rate of returning acks -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] urgent plzzzz
can anyone send me the awk script to calculate bandwidth for wireless in ns2.34?? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] formula to calculate bandwidth
hi can anyone tell me the formula to calculate the bandwidth using RTT in ns2.. -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] awk script for bandwidth
is der any awk script to find bandwidth of a wired-cum-wireless scenario in ns2? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] to print tcp's rtt estimated value
hi can any help me to know how to print the tcp's rtt estimation value in ns2.34 -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] awk script for wired-cum-wireless scenario
hi can anyone send me the awk script of packet loss, delay,throughput for wired-cum-wireless networks -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] how to compare tcp variants in ns2
hi everyone,am new to ns2.can anyone tell me how to simulate and compare tcp variants(tahoe,reno and SACK tcp) waiting for ur reply...thanx in advance -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] Implementation of SACK in ns2
can yo help me to estimate available bandwidth based on RTT in ns2..and how to implement SACK in tcl script... -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] Bandwidth estimation using pathchirp tool in ns2
hi,i am trying to estimate available bandwidth by integrating pathchirp
tool(http://www.spin.rice.edu/Software/pathChirp/) in ns2.35 but during
running make command i got the follwing error message
tools/rng.cc: In member function ‘virtual int RNG::command(int, const char*
const*)’:
tools/rng.cc:285: error: ‘RNGTest’ was not declared in this scope
tools/rng.cc:285: error: expected ‘;’ before ‘test’
tools/rng.cc:285: error: ‘test’ was not declared in this scope
make: *** [tools/rng.o] Error 1
and while running tcl script i get an following error...
invalid command name "Agent/pathChirpSnd"
while executing
"Agent/pathChirpSnd create _o82 "
invoked from within
"catch "$className create $o $args" msg"
invoked from within
"if [catch "$className create $o $args" msg] {
if [string match "__FAILED_SHADOW_OBJECT_" $msg] {
delete $o
return ""
}
global errorInfo
error "class $..."
(procedure "new" line 3)
invoked from within
"new Agent/pathChirpSnd"
invoked from within
"set p0 [new Agent/pathChirpSnd]"
(file "pathChirp.tcl" line 29)
can anyone help me to debug the above errors??
--
Reagards.,
R.Abinaya,B.Tech,(M.E)
--
Reagards.,
R.Abinaya,B.Tech,(M.E)
[ns] plz help me to debug the following error
hi i get an following error during running make command ,how can i debug this??? common/packet.cc:44: error: conflicting declaration ‘char** p_info::name_’ common/packet.h:278: error: ‘p_info::name_’ has a previous declaration as ‘char* p_info::name_ [60]’ common/packet.cc:44: error: declaration of ‘char* p_info::name_ [60]’ outside of class is not definition common/packet.cc:45: error: ‘unsigned int p_info::nPkt_’ is not a static member of ‘class p_info’ common/packet.cc:46: error: expected constructor, destructor, or type conversion before ‘*’ token common/packet.cc:48: error: no ‘int p_info::addPacket(char*)’ member function declared in class ‘p_info’ make: *** [common/packet.o] Error 1 -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] Bandwidth estimation using pathchirp tool in ns2
hi all,i am trying to estimate available bandwidth by integrating pathchirp
tool(http://www.spin.rice.edu/Software/pathChirp/) in ns2.35 but during
running make command i got the follwing error message
tools/rng.cc: In member function ‘virtual int RNG::command(int, const char*
const*)’:
tools/rng.cc:285: error: ‘RNGTest’ was not declared in this scope
tools/rng.cc:285: error: expected ‘;’ before ‘test’
tools/rng.cc:285: error: ‘test’ was not declared in this scope
make: *** [tools/rng.o] Error 1
and while running tcl script i get an following error...
invalid command name "Agent/pathChirpSnd"
while executing
"Agent/pathChirpSnd create _o82 "
invoked from within
"catch "$className create $o $args" msg"
invoked from within
"if [catch "$className create $o $args" msg] {
if [string match "__FAILED_SHADOW_OBJECT_" $msg] {
delete $o
return ""
}
global errorInfo
error "class $..."
(procedure "new" line 3)
invoked from within
"new Agent/pathChirpSnd"
invoked from within
"set p0 [new Agent/pathChirpSnd]"
(file "pathChirp.tcl" line 29)
can anyone help me to debug the above errors??
--
Reagards.,
R.Abinaya,B.Tech,(M.E)
[ns] pathchrip implementation in ns2
can i implement pathchrip,a tool for available bandwidth estimation in ns2.35?? -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] tcl script for SACK tcp
hi am new to ns2 ,can anyone tell me how to implement SACK tcp in tcl script -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] Bandwidth estimation-reg
hi can anyone help me to estimate available bandwidth by modifying backend files of tcp.cc and tcp.h -- Reagards., R.Abinaya,B.Tech,(M.E)
[ns] Implementation of ELN
can anyone help me to know how to implement eln in ns2? -- Reagards., R.Abinaya,B.Tech,(M.E)
