[ns] a question about routing in NS.

[mahesh@cs.iitm.ernet.in]

hi seniors,
i'm new NS. Here i got a doubt in routing. I noted that routing in NS
is done using the hop count but not using the link costs. is that true? I
made this statement because i found that changing cost of the link doesn't
effecting the routing. But for my research i want this routing to dine
using weightage of the link.
how is that possible?
can anyone help me.........please

thanks in advance,

mahesh