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Re: [ns] ns-2.1b8 & MNS v2 (Haobo Yu help???)

Hi Jason,

I don't completely understand it, but for as far as I know,
the node structure in ns has been changed since ns-2.1b7. If
you compare the MPLS-module added with ns-2.1b7 and ns-2.1b8
and the original MNS module, you will see that has been quite
a number of changes. (See also the ns change log, paricularly
Thu Sep 14 2000 when MPLS was added)
I suspect, no I fear, that MNS version 2 still uses the "old
type of nodes". This would mean that all references to a node,
or a MPLS module in MNS v2 would have to be redefined in order
to make it run with the new node structure.

Hopefully Haobo Yu can tell us more, because he was the one
that has rewritten MNS v1 and added it to ns-2.1b7.

So Haobo Yu, could you please tell us more?

kind regards,

Onno

Kuang-Jen Liu wrote:
> 
> Hi Onno,
> I tried your method but the "for{}" doesn't work in my ns-2.1b8 so
> instead I just did something like this:
> 
> $ns node-config -MPLS ON
> set LSR1  [$ns node]
> $LSR1 color red
> 
> set LSR2  [$ns node]
> $LSR2 color red
>         :
>         :
>         :
> set LSR9  [$ns node]
> $LSR9 color red
> 
> $ns node-config -MPLS OFF
> 
> And it worked. But the system now complained about:
> $ns configure-ldp-on-all-mpls-nodes
> 
> So I tried to comment out $ns configure-ldp-on-all-mpls-nodes, and then the
> system complained about:
> $ns cfg-cbq-for-SBTS
> 
> So I am wondering if my ns was not "Configure" or "Make" properly.
> 
> What do you think?
> 
> Regards
> 
> Jason
> 
> >From: Onno Kievit <[email protected]>
> >To: Kuang-Jen Liu <[email protected]>
> >Subject: Re: Fwd: Re: [ns] ns-2.1b8 & MNS v2
> >Date: Fri, 10 Aug 2001 16:04:19 +0200
> >
> >Hi Jason,
> >
> >There's another way to create a MPLS node in ns2.1b7. Maybe
> >this does work in ns2.1b8 with MNS v2.0...
> >
> >For example if you want to create 10 (red) MPLS nodes:
> >
> >for {set i 0} {$i < 10} {incr i} {
> >$ns node-config -MPLS ON
> >set node($i) [$ns node]
> >$node($i) color red
> >$ns node-config -MPLS OFF
> >}
> >
> >Good luck, and please let me know if this does work
> >
> >Onno
> >
> >Kuang-Jen Liu wrote:
> > >
> > > Hi there!
> > > I followed Christian Glomb's steps to run mns in ns-2.1b8 but in the end
> > > still no luck.
> > >
> > > The system kept saying the same thing when I run test-*.tcl files:
> > >
> > > (_o3 cmd line 1)
> > >     invoked from within
> > > "_o3 cmd MPLSnode"
> > >     invoked from within
> > > "catch "$self cmd $args" ret"
> > >     (procedure "_o3" line 2)
> > >     (SplitObject unknown line 2)
> > >     invoked from within
> > > "$ns MPLSnode"
> > >     invoked from within
> > > "set LSR1   [$ns MPLSnode]"
> > >     (file "test-constraint-routing.tcl" line 94)
> > >
> > > Can anyone give me some advice?
> > >
> > > Jason Liu
> > >
> > > <html><P>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<BR>Jason
> >Kuang-Jen
> > > Liu <BR>MSc Mobile &amp; Personal Communication<BR>King's College
> >London</P>
> > > <P>Tel:&nbsp; +44 (0) 7979818952<BR>Email: <A
> > >
> >href="mailto:[email protected]">[email protected]</A><BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
> > > <A
> > >
> >href="mailto:[email protected]">[email protected]</A><BR>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</P>
> > > <DIV></DIV></html>
> > >
> > > >From: Onno Kievit <[email protected]>
> > > >To: Christian Glomb <[email protected]>
> > > >CC: [email protected]
> > > >Subject: Re: [ns] ns-2.1b8 & MNS v2
> > > >Date: Thu, 09 Aug 2001 15:25:56 +0200
> > > >
> > > >Have you tried to use the code of the MPLS module included in
> > > >ns-28, i.e.
> > > >
> > > >Simulator instproc mpls-node args {
> > > >         $self node-config -MPLS ON
> > > >         set n [$self node]
> > > >         $self node-config -MPLS OFF
> > > >         return $n
> > > >}
> > > >
> > > >Maybe this helps...
> > > >
> > > >Onno Kievit
> > > >
> > > >Christian Glomb wrote:
> > > > >
> > > > > O.k. the problem is in 'tcl/mns_v2.0/ns-mpls-simulator.tcl':
> > > > >
> > > > > Simulator instproc MPLSnode args {
> > > > >        $self instvar linked_mplsnodes_
> > > > >
> > > > >        # let node_factory_ indicate MPLSnode(class)
> > > > >
> > > > >        set tmp [Simulator set node_factory_]               <<== HERE
> > > > >
> > > > >        Simulator set node_factory_ MplsNode                <<== HERE
> > > > >
> > > > >        set n [$self node]
> > > > >
> > > > >        lappend linked_mplsnodes_ $n
> > > > >
> > > > >        Simulator set node_factory_ $tmp                    <<== HERE
> > > > >
> > > > >        return $n
> > > > > }
> > > > >
> > > > > The 'node_factory_' setting is old-style and not recommended to be
> >used.
> > > > > It results in 'target_' pointer being set to NULL.
> > > > > Does anybody know how to solve this problem?
> > > > >
> > > > >
> > >
> > >----------------------------------------------------------------------------
> > > > > Christian Glomb
> > > > > Siemens AG
> > > > > Corporate Technology
> > > > > Networks and Multimedia Communications
> > > > > Email: [email protected]
> > > > >
> > >
> > >----------------------------------------------------------------------------
> > > >
> > >
> > > _________________________________________________________________
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