[S] Tulip Ethernet Controller Collision Rate

From: Bivins, Jeff <BIVINS_at_nebeng.otis.utc.com>
Date: 28 Sep 1995 10:02:00 -0700 (PDT)

My Original question is:

> Hello all,
>
> I have 35 AlphaStation 250 4/266 workstations and 2 AlphaServer 2100 4/233

> servers. All of these machines have a DEC TULIP PCI ethernet card. When
> using the 'monitor' tool I see on the average 30-40 percent of collision
on
> a high throughput transfer.
>
> When I send a large file from on of these machine to a DECsystem 5900. The

> high collision rate only exist in the Alpha side and not the DECsystem
side.
>
>
> Is this a tuning issue ?

Nope. It's normal.

> How can I resolve this issue ?

Thanks to those who responded
     Matt Thomas
     Dave Cherkus
     J. Dean Brock
     Dave Golden


The consensus is that the TULIP controller reveals accurate statistics on
collisions, where the LANCE controller does not.

I will look at this problem from a network perspective.

Thanks,

Jeff
     
Received on Thu Sep 28 1995 - 15:57:04 NZST