node type, but allow it to be overridden with tb-set-jail-os().

other changes to the commvirtsig branch.

* Run assign with nice; when assign is cranking (or when two are
  cranking!) boss gets really sluggish (web, DB).

* Minor change to "impotent" option; run a little longer and print out
  what the vlan table would look like.

* Two trivial grammer changes.

parser with new functions tb-set-jail-os() and tb-set-delay-os()).
Prefer these over anything in the node_types table. Makes it easier to
test new images in the various configurations.

jail and delay node OSIDs. When set, will override anything in the
node_types table. Use with caution.

for the experiments table.

paper effort. Note, not an osid, but an osname like we specify for a
virt_node. Lookup rules are the same; first check the current project
for a match, and then check emulab-ops.

Modified routecalc, adding a command line option to dump all route lengths to a file for statistical analysis.

is broken right now.

Told Jon I'd do this so that he can check in - so that we have
snapshots of his code, but he doesn't have to worry about breaking
the build (yet.)

anyway, so not as important anymore.

from one pnode to another during a swapmod.

From the code:
        # N.B. privnet is setup first even before the default route.
        # This is because the gateway for the default route is on the
        # privnet, but our control net interface is not (because it has
        # a 255.255.255.255 netmask by virtue of being an alias on the
        # real control interface).  Thus there is no way to use the
        # default route until the privnet route is up (ARP complains
        # about "host is not on local network").

in find_best_link(), don't try plinks that already have a non-emulated
link on them, when we're doing an emulated link.

- the problem with broadcast when using fake MACs instead of encapsulation
- why ARP is hard in our environment

pnode. Used to no be allowed, but with multiple routing tables this is
now possible. My code to construct link names on the fly when delay
nodes are inserted, was generating non-unique names which was causing
vlans to be dropped.

vnode and a PC node, under normal circumstances, a real physical link
is used. However, a user can use tb-set-multiplexed on the link that
allows assign to map multiple vlinks over the same physical link.
This is fine when the PC is running FBSD-STD which can use veth
interfaces. Not so if it is running Linux or a non-standard BSD.
This fix forces EMULATED links and VETH devices when the PC is running
FBSD-STD and turns those attributes off otherwise so that assign
will not give a mapping that cannot be realized on the client side.
For the gory details of this problem, look at testbed-ops email thread
"pcvm route problem" dated 29th Jan 2004.

A problem still exists in the non-BSD router + jail vnodes in a delayed
LAN. VLANs table is not getting the correct entries. A fix will come
soon. Follow the testbed-ops email thread "fix for the pcvm route problem"
dated 29th Jan 2004 for the gory details.

arguments, passes keyfile name, pidfile name, logfile name, etc.

Acts as a transparent filter for assign - parses the top file given to
assign, coarsens the graph in it, then feeds that to assign.
Translates assign's output back into context of the original graph,
and spits that out for parsing.

Right now, only includes a single coarsening algorithm - conglomerates
the nodes in leaf lans. Hopefully, it will soon include other
algorithms, such as running METIS to partition the graph.

Still needs a fair amount of work to be general - only works on
certain types of topologies right now.

Not called yet, but that will be trivial - just need to change
assign_wrapper to call assign_prepass instead of assign.

tmcd passes back an encapsulation flag to inform this.
NOTE: new version (15) for tmcd!

as well as links.

I am not using paperbag to run it on ops, but just installing the two
programs that are needed. Eventually should paperbag it.

This same script runs on both boss/ops and on experimental nodes to
fire off the linktest daemon on the nodes and wait. This is icky as
some crufty stuff has to be done so that it will run in both
environments. ltevent is of course not needed on boss, but do not want
to bother it now since it *is* needed on the nodes.

To run it on boss script needed severe cleanup and taint checking.
Also added the use of event keyfile, which is currently optional, but
needs to be mandatory once the images are updated.

The current problem is that run_linktest can hang waiting for the
clients to finish?. We can use quick mode in the experiment setup
path, but maybe we need a cancel operation?

into table_regex.

each veth from tmcd cause that is easy. Defaults to 1 for now.
Add tb-set-encapsulate to front end so Mike can play with it.