Re: [ns] the time delay in node

[Ya Xu <yaxu@ISI.EDU>]

Lloyd,

In (traditional wired)ns, queue is not the part of a node.
The enQ and deQ trace happens on the LINK object, not
a node object. (refer to ns doc)

I know many people are confused by this, but it is the
way in ns.

In wireless simuation, a (broad) wireless node contains a
queue inside it.

-Ya

On Mon, 29 Oct 2001, Lloyd Wood wrote:

> On Sun, 28 Oct 2001, Ya Xu wrote:
> 
> > On Wed, 24 Oct 2001, Sol Dashing wrote:
> > 
> > > We can assign a link delay in script file. However, I
> > > am confused if there is a time delay in every node
> > > simulated in ns-2. 
> > > 
> > > I check my trace file what I have got, and found that
> > > the time of "+" and "-" corresponding to same packet
> > > are always same. That means the time delay in each
> > > node is 0, isn't it? In addition, I also noticed the
> > 
> > In the wired simulation, the answer is yes. 
> 
> If you have queuing, time delay in each node is not zero - even in
> wired simulation.
> 
> http://www.isi.edu/nsnam/ns/doc/node211.html
> 21.4 Trace file format.
> 
> L.
> 
> > You can find more details in the ns docs available in hte
> > vint website.
> 
> <L.Wood@surrey.ac.uk>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>
> 
> 
>