[Info-vax] hub better than switch?!

Phillip Helbig---undress to reply helbig at astro.multiCLOTHESvax.de
Sun Mar 4 04:31:48 EST 2012


In article <jiv9fo$k7f$1 at news.albasani.net>, Jan-Erik Soderholm
<jan-erik.soderholm at telia.com> writes: 

>  > about a slowly (about 2 per day) increasing error count,
> 
> Does it say anything about *what* error ?

PEA0:                                   46

This is the one which is increasing, but only on the node with the 100 
Mb/s network card.

> If I understand correctly, you have VMS-Cluster ovar LAN with one node
> running at 100 Mb/s and the other node/nodes running at 10 Mb/s ?

Right.

> What if you, just as a test, force the 100 Mb/s node down to 10 Mb/s ?

I suppose I could, but if it works, it's not something I want.  I would 
like each machine to run at the speed it is capable of and had hoped 
that such a switch would allow this.

>  > while on the "hub" it ran at 10...
> 
> So it that case *all* cluster members run at the same speed ?

Right, though other things (a WLAN access point and another switch) ran 
at 100.

> I'd look closer to the speeds then to any hub/switch diffrences.

The thing is that with the "hub" (not really a hub---see previous posts) 
the problem stopped.  OK, maybe the problem is due to the mixed speeds 
and the "hub" forced the one node to slow down to 10 Mb/s.  However, 
normally it shouldn't be a problem to have different ethernet speeds in 
a LAN cluster, right?




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