If a counter returns a non-numeric value, then treat it as zero and print
a warning.  Most likely these are OIDs that are unimplemented.
It will only warn once per device per OID, but even that might get tedious
so warnings can be turned off entirely with a global variable.

Made the obvious change and it seems to work.  I'm sure Keith must have sent
us this change before!

the ports on the unknown switch.

HP support could *probably* be added to this script trivially, but
it would need some testing: the HPs should support the standard
MIBs that this script uses.

Note: this script could probably use the tblog treatment.

ports.

syntax.  This allows us to query interswitch link counters.  Only root
or the admin can use this option.

Updates to to Error Logging API Code.

You should start seeing much better error messages coming from my
system.  Errors coming from parse.proxy and assign (the two most
frequent sources of errors) should now be concise and to the point.
Errors coming from libosload/libreboot (the next most frequent source
of errors) should now also be much better, but not perfect.  Getting
perfect errors will likely a rework of how errors are handled in
libosload/libreboot, just adding tberror/tbwarn/tbnotice calls is not
enough.  I can do this at a latter date if necessary.

A few minor database changes.

Some changes to the API.  A few bug fixes. Lots of tberror/tbwarn/tbnotice
added to scripts.

Since assign is a C program, and at this time my API is perl only, I wrote a
second wrapper around assign, assign_wrapper2.  When assign fails errors are
now parsed in assign_wrapper2, sent to stderr and logged.  This means that
RunAssign() just returns when assign fails rather than echoing some of
assign.log output and then quiting.  The output to the activity log remains
unchanged.

Since "parse.proxy" is run from ops I couldn't use my API in it, even though
it is a perl program.  Instead I parse the errors coming form it in
parse-ns.

for snmpit.

XMLRPC, but for now avoid the warnings.

Contributed by Keith Sklower at Berkeley.

mere users.

get an updated copyrights message.

allow you to view interfaces that are not in an experiment.

subtract that out form the numbers obtained from the switch.  So, we
have a new option to 'zero' (store current values) of counters.  This
is intended to be used at experiment swapin, but can also be used by
experimenters whenever they want.

Along with this, the following new options:
-z    Zero out counts for selected counters, after printing
-q    Quiet: don't actually print counts - useful with -z
-c    Print absolute, rather than relative, counts

Also improved the usage message.

now only shows packet/octet couters. '-e' shows error counters, and
'-a' shows all counters.

Usage: portstats <pid> <eid> [vname ...] [vname:port ...]

If only pid and eid are given, prints out information about all
ports in the experiment. Otherwise, output is limited to the
nodes and/or ports given.