Re: [Testbed-admins] Request a specific interface type?

[Jonathan Walsh <jonathan.d.walsh@lmco.com>]

Rob,

This is very close to what I need.  Unfortunately both sides of the 
lan/link have different interface types.  Is there a way to specify this 
for one side rather than both?

If I do this in my NS file:

set weirdnode [$ns node]  #has nic with type foo
set normalnode [$ns node] #does not
set mylink [$ns duplex-link $weirdnode $normalnode ...
tb-set-link-protocol $mylink ethernet-foo

I get the error:

No possible mapping for normalnode
No links of type ethernet-foo found! (1 Requested)

Which makes sense since it does not have that interface type available.

-Jonathan


Robert P Ricci wrote:
> There is, actually.
>
> For Ethernet interfaces, we give the link the type 'ethernet', but also
> 'ethernet-fxp', 'ethernet-em', etc.: whatever type you gave the
> interface in the database. So, they can use confusingly-named
> tb-set-link-protocol command (or tb-set-lan-protocol for LANs):
>
>     tb-set-link-protocol $mylink ethernet-fxp
>
> Thus spake Jonathan Walsh on Fri, Jan 08, 2010 at 11:48:13AM -0500:
> > Is there currently a way for an experimenter to request a specific 
> > interface type on a node?  I don't see anything obvious in the 
> > documentation about a way to do this, is there perhaps a hack way I can 
> > get it done?
> >
> > Thanks!
> > -Jonathan
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