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20030612: Test

>From: address@hidden
>Organization: ULM
>Keywords: 200306111400.h5BE0HLd016841 LDM-6 IDD firewall

Adam,

>Could you please test this machine with the file transfer test using the same 
>login as the other.
>
>altostratus.geos.ulm.edu
>
>This machine is our other linux box.  This way we can tell is it is tornado or
>something else.

I tried to get onto altostratus a couple of minutes ago but was unable
to.  I tried ssh from my machine in Boulder -- that got no response --
and then I sshed to tornado and tried to ssh to altostratus as 'ldm'
using the password that got me onto tornado -- this also failed.

>Also, we have replaced the network card in tornado thinking that it may bad 
>acouple of months ago.  We still had the exact same problem afterwards.

OK.  Did you verify that the card is running at 100 Mbps full duplex?
We have seen instances where a 10/100 Ethernet card will default to 10
Mbps.  If yours is running at the slower speed, it could account for
the bottleneck that we are seeing.  In my mind I have ruled out simple
things like bad cabling or a bad Ethernet card since the
/var/log/messages file on tornado is not full of errors.

Since I happened to notice a log entry about IP chains, I will have one
of our system guys take a look at your IP chains setup on tornado to
see if there is anything peculiar there (I am at home right now, so
this will have to wait for an hour or so).

For grins, I just reran the scp speed test on tornado for the same
file, ldm-6.0.13.tar.Z, and this time the transfer of 638 KB took 31
seconds; yesterday afternoon it took 29 seconds.

I ran the same scp test from the machine in Rio to tornado, and it took
44 seconds.  I then reran the same scp test from UCAR to Rio and it
took 7 seconds; yesterday afternoon it took 4 seconds.

>Thanks

Please let me know when you have altostratus opened for logging on.

Tom