Re: 500AU NIC Issues

From: Bob Harris (nospam_at_sorry.I.have.been.harvested.before)
Date: 01/03/05 

Date: Mon, 03 Jan 2005 15:10:49 GMT

In article <wMmdnU-QjrUVzUTcRVnygQ@eclipse.net.uk>,
 johhny <m66@hotmail.com> wrote:

> Hello,
>
> I have recently put Tru64 onto a 500AU workstation system. I have been
> using FreeBSD on this system for some time (see previous posts) and had
> this problem also.
>
> When the nic is setup to autosense/negotiate it will automatically
> detect as being 100-FULL. The switch (Cisco Catalyst 2950) as being
> 100-FULL but the performance is woefull. Not able to get greater than
> about 100kb/second from the network and its really unstable with the
> traffic coming in bursts etc.
>
> I have TWO 500AUs and both show exactly the same symptoms on both
> FreeBSD and Tru64. Is there something in the config that I need to change.
>
> If I try and force the network card to anything it will be just as poor
> in the performance. Ive tried different cables both STP and UTP. Im a
> little confused. Any additional advise could be great.
>
> Thanks
>
> J
>
> http://forum.lucidnow.com

I ran Tru64 UNIX v5.1b on my AlphaStation 500au and I could not get
reliable 100baseT networking from the built in ethernet.

Here are the built in ethernet settings that did and did not work for me:

>>> show e*
>>> set ewa0_mode auto-negotiate # 100BT Full hangs net
>>> set ewa0_mode fast # 100BT Half Hangs net
>>> set ewa0_mode fastFD # 100BT Full Hangs net
>>> set ewa0_mode twisted-pair # 10BT Half is OK
>>> set ewa0_mode Full Duplex # 10BT Full is OK

I ended up installing a DE500 PCI ethernet card to get reliable
100BaseT. But even then, it seemed as if I was not able to get really
good performance, but at least it was reliable.

                                        Bob Harris

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