Re: [Testbed-admins] NetFPGA Instructions

["David A. Kotz" <dkotz@cs.utexas.edu>]

David M. Johnson wrote:
> On Fri, Sep 25, 2009 at 10:54:49AM -0500, David A. Kotz wrote:
> > Now that I'm using an NS file, I move on to the following error, which 
> > seems to suggest its own solution, but I wanted to ask before hacking 
> > the database.
> >
> > ________
> >
> > Type precheck passed.
> >    *** No possible mapping for nfrouter
> >        No links of type ethernet found! (2 requested)
> >    *** No possible mapping for nfhost
> >        No physical nodes have feature hosts-netfpga!
> > *** Node mapping precheck failed!
> >
> > ________
> >
> >
> > I see that there is a node_type_features table in the database which is 
> > currently empty.  Should it have entries to indicate that pcr200 has the 
> > feature "hosts-netfpga"?
>
> You can either remove the line in your NS file that specifies the desire for
> a node that has that feature, or you can add a feature to the node_features
> table for each node that hosts a netfpga (or, if all your nodes of a specific
> type have netfpgas, add it to the node_type_features table like you suggest).
>
> (Note that adding features to nodes or node types means that when assign adds a
> node to the mapping, the mapping score will be increased by the weight you
> specify for the feature... and this will make it more unlikely that users who
> do not specifically ask for netfpgas get nodes that host the cards (because
> there is a higher scoring penalty for including them).)
>
> > - dave
>
>
> david


Sorry if I'm being dense, but I don't think I requested the feature.  I 
took your tutorial NS file and changed only the type from "netfpga2" to 
my "netfpga".


# Boilerplate
source tb_compat.tcl
set ns [new Simulator]

# Create a NetFPGA node
set nfrouter [$ns node]

# Set its hardware type to NetFPGA
tb-set-hardware $nfrouter netfpga

# Name the NetFPGA host, bind it to the NetFPGA node, and
# set its OS.
set nfhost [$ns node]
tb-bind-parent $nfrouter $nfhost
tb-set-node-os $nfhost FC6-NetFPGA

# Create end nodes
set n0 [$ns node]
set n1 [$ns node]

# Create links between the end nodes and the NetFPGA
set link0 [$ns duplex-link $n0 $nfrouter 1Gb 0ms DropTail]
set link1 [$ns duplex-link $n1 $nfrouter 1Gb 0ms DropTail]

# Set up static routing on all nodes,
$ns rtproto Static

# Boilerplate
$ns run