[ns] ns limitation regarding network topology

[Yasuhiro Ohara <yasu@sfc.wide.ad.jp>]

Hi,

Is there any topology limitation while doing ns simulation ?

I was trying to test the 300 node version of tutorial's
"VI.1 Creating a larger topology".

I've got error messages saying "unable to alloc 2480",
and Segmentation error. (2480 is from my memory, might be 2400...)


I've found that the error message was from Tcl (tclCkalloc.c:
Tcl_Alloc()). Then I retry it with doing vmstat(8).
My testing machine is NetBSD, and it says the machine has about
300M. (avail memory = 349 MB)
The vmstat at the failure was: (This shows the most avm)

avm    fre    (size 1Kb)
157788 184132

I can't see the reason of memory allocation failed...

Please help me...
regards

       yasu