Re: [ns] about command "$ns rtmodel-at 1.0 down $n(1) $n(2)"

[ma-haiyuan]

Thanks for your reply!
but there is no command "Iif" in tcl/lib/ns-link.tcl.
 it is  "
Link instproc all-connectors op {
 foreach c [$self info vars] {
  $self instvar $c
  if ![info exists $c] continue
  if [array size $c] continue
  foreach var [$self set $c] {
   if [catch "$var info class"] {
    continue
   }
   if ![$var info class Node] { ;# $op on most everything
    catch "$var $op";# in case var isn't a connector
   }
  }
 }
}
"
 However ，the script can run successfully on NS-2.26.
 
Thanks!






At 2011-05-07 17:14:01，fivos <fivos....@gmail.com> wrote:

>Go to tcl/lib/ns-link.tcl and try renaming lif to if and recompile ns
>. it should work then.
>Iif ![$var info class Node] { ;# $op on most everything   ----- > if
>![$var info class Node] { ;# $op on most everything
>
>cheers
>
>2011/5/6 ma-haiyuan <ma-haiy...@163.com>:
>>
>>
>> Hello everyone!
>>
>> When I do the tutorial for the network simulator "NS" originally developed 
>> by Mac Greis, the subsection VI.2, the example can not run on my ns(version 
>> 2.31). The error is as follows:
>>
>> invalid command name "Iif"
>>    while executing
>> "Iif ![$var info class Node] { ;# $op on most everything
>> catch "$var $op";# in case var isn't a connector
>> }"
>>    (procedure "_o63" line 10)
>>    (Link all-connectors line 10)
>>    invoked from within
>> "$self all-connectors isDynamic"
>>    (procedure "_o63" line 10)
>>    (SimpleLink dynamic line 10)
>>    invoked from within
>> "$links_($l) dynamic"
>>    (procedure "_o177" line 8)
>>    (rtModel configure line 8)
>>    invoked from within
>> "$m configure"
>>    ("foreach" body line 2)
>>    invoked from within
>> "foreach m $rtModel_ {
>> $m configure
>> }"
>>    invoked from within
>> "if [info exists rtModel_] {
>> set rtq_ [new rtQueue $self]
>> foreach m $rtModel_ {
>> $m configure
>> }
>> }"
>>    (procedure "_o3" line 3)
>>    (Simulator rtmodel-configure line 3)
>>    invoked from within
>> "$self rtmodel-configure                        "
>>    (procedure "_o3" line 4)
>>    (Simulator run line 4)
>>    invoked from within
>> "$ns run"
>>    (file "example.tcl" line 60)
>>
>> I just download the example script without any modifization.
>>
>> If I comment out the commands
>> #$ns rtmodel-at 1.0 down $n(1) $n(2)
>> #$ns rtmodel-at 2.0 up $n(1) $n(2)
>> The example can run succefully.
>>
>> How can this happen?
>> Thanks very much!
>>
>>
>>
>>