Re: [ns] time resolution in Gbps bandwidth

[Xuan Chen <xuanc@ISI.EDU>]

Does it caused by the same problem posted before?

http://www.isi.edu/nsnam/archive/ns-users/webarch/2000/msg03272.html

Thanks,
-chen xuan

On Fri, 21 Jul 2000, Bo  Wen wrote:

> 
> Hi,
> 
> When I use Gbps as links bandwidth, but I just
> found the total delay of a packet is not exactly equal
> to the sum of propagation delay and transmission delay
> of the packet (I removed the queue delay from links,
> so there is no queuing delay introduced).
> 
> My way to calculate delay is that received time at
> the received substracts the time in time stamp of packet
> header.  With Mbps bandwidth, results look reasonable
> with the acceptable resolution.
> 
> Is that the problem of the resolution of ns scheduler?
> 
> Thanks a lot,
> Bo Wen
> 
> 
> 

-- 
Xuan Chen
ISI/USC