[Orca-users] Problem with network

[Blair Zajac]

Jordi Vidal wrote:
> 
> Hi
> 
>         I'm running orcaware.se over a SunE480 box and I'm getting Network
> errors level 4 and 8 in "System Overview". Looking closer I dont see what
> is going wrong, no collisions, no nocanputs, no deferreds. Can someone
> how to force some setoolkit scripts to be more specific telling what
> problem detects?
> 
>         virtual_adrian.se says:
> 
> Adrian detected slow net(s): Fri Jun 13 16:21:47 2003
> Add more or faster nets
> State Name      Ipkt/s  Ierr/s  Opkt/s  Oerr/s Coll% NoCP/s Defr/s
> red   ce0         31.2     0.0    24.4     0.0  0.14   0.00   0.00
> 
> Adrian detected slow net(s): Fri Jun 13 16:24:47 2003
> Add more or faster nets
> State Name      Ipkt/s  Ierr/s  Opkt/s  Oerr/s Coll% NoCP/s Defr/s
> red   ce0         29.9     0.0    23.4     0.0  0.14   0.00   0.00
> 
> Adrian detected slow net(s): Fri Jun 13 16:26:17 2003
> Add more or faster nets
> State Name      Ipkt/s  Ierr/s  Opkt/s  Oerr/s Coll% NoCP/s Defr/s
> red   ce0         27.5     0.0    21.0     0.0  0.16   0.00   0.00

The way to check for this stuff is to read the RICHPse/include/pure_rules.se
files.  Here we see the message:

        case ST_RED:   action = "Add more or faster nets";
          break;


searching for ST_RED above it, we see

              if (coll_problem <= collpercent[i])
                {
                coll_state = worst_state(coll_state, ST_RED);
                states[i] = worst_state(states[i], ST_RED);
                }

.....
              if (defer_problem <= deferpercent)
                {
                defer_state = worst_state(defer_state, ST_RED);
                states[i] = worst_state(states[i], ST_RED);
                }

Judging by your non-zero collisions, this is where the error message
is coming from.

You may want to check your network.  It's odd to see this many collisions
for this little traffic.

Which Sun hardware and switch do you have?  Various combinations of these
have interopibility issues.

Best,
Blair

-- 
Blair Zajac <blair at orcaware.com>
Plots of your system's performance - http://www.orcaware.com/orca/