From: Peter Nosko <[EMAIL PROTECTED]>
> pn] I've noticed when FTPing large files between two machines on the same
> subnet/hub, the collision light alternates between flickering and almost
> solid-on. Is this normal and of any real concern? Does it have anything
to
> do with hub "quality?"
>
> pn] FWIW, I'm using Kingston KND800TX 10/100 hubs, and both machines in
this
> case have 3C905B-TX (100) NICs.
Are they big files that should tax the network? If so, you're probably
maxing out the network in which case it's "normal" and not a reason for
concern. I've heard people target 5% collisions. You can check each
machine's interface with ifconfig (or, I guess newer distro's use ip): I
believe you divide the collisions by the bytes out. If the error rate seems
high then maybe you have some trouble to worry about.
As I understand it, you should be able to get about half the bandwidth. A
100 Mb connection will transfer 50*1000*1024/8 bytes per second (half the
100 times a million bits divided by 8 bits per byte). Are you getting these
kind of throughputs?
Finally, I thought that with hubs you had a single, lowest-demoninator
speed... so if one connecting card was 10 Mb then all connections would be
10Mb... I could be wrong about this.
-Alan
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