[ns] Some simple questions

["Leonidas A. Lymberopoulos" <llymber@doc.ic.ac.uk>]

Hello,
I am a new user of the NS software.
I am trying to set up a link between two nodes with a specified delay
and bandwidth.
I can do that with the command

$ns duplex-link $n1 $n2 1Mb 10ms DropTail,
where I can specify these parameters.

I expected I could do that by having an DelayLink object instead and
inside  that object I could specify these parameters.
How can I do that?

Another question is how can I have a QueueObject for a specified link
and obtain from that object
characteristics of the queue (packets received etc).

Also, can I find somewhere all the available methods that the Simulator
class provides?
(Like the duplex-link method before).

Thank you.

Leonidas