netstat -is showing strange send failure

[Dawn Urey]

I am running Tru64 5.1A patchkit 6 on an Alphaserver ES40. The network card is a DE504. I am getting send failures from netstat -is on my tu1 interface that list the reason as short circuit. Has anyone seen this before? Could this indicate a hardware problem with the card?

[Johan Brusche]

More probably a lan-cable problem. Is this
on coax-thinwire ? If yes, somewhere in a BNC-connector you will find the shielding
touching the central wire.

Happy cable-hunting ;-}

Johan.

[Dawn Urey]

I'm not using coax. I have an RJ45 connection. I will check the cable connection.

[Ravi_8]

Hi,

change the n/w cable and check again

[Ralf Puchner]

DE504 is twisted pair only.... but it seems a cabling problem, swap cable.

[Dawn Urey]

I swapped the cable and I am still getting a short ciruit error. Since this card has 4 ports, is it possible that the port itself is having a problem that does not affect the other ports?

[Mobeen_1]

Dawn,
You have a good point there. If i were you i would look at the following, in the order of their precendence :-)

1. Cable Problem(You already ruled this out)

2. Try each of the port available on your
DE504.

3. If item#1&2 don't help, try a different
n/w card and that will help most of the
time.

I ran into this problem quite some time back, but was lucy to stop at item#1 :-)

All the best

regards
Mobeen

[Dawn Urey]

I switched to another port on the card and my problem has been resolved. It looks as though the 2nd port on the nic card is bad.

[Dawn Urey]

Apparently, I jumped the gun on the resolution. I received more short circuit errors. So far, I have switched cables twice, I have moved to another port on the de504 (tu2) and I have changed switch ports. I still continue to get these short circuit errors. I am leaning towards a problem with the DE504 card. Does anyone have any other suggestions as to what may be causing my errors?

[Ralf Puchner]

In a KAT5 cabling environment the ports on both side (switch/hub and machine) must have the same settings (point to point connection).

Tulip Cards like the DE50x series works best with manual "fixed" settings. So check both side for proper setup.

Depending on the settings (half/fullduplex) cabling limitations must be checked (e.g. no more than 10m shielded cabling from plug on the wall). Test plug and cable with test equipment (poor man testing: use another plug on the wall and on the switch/hub) or switch cabling over to a maschine without a problem.

DE504 is out of production - there is no known problem with "short circuits".