Help needed regarding Ethernet Switch

Anthony Tam atctam at csis.hku.hk
Mon Sep 3 02:18:36 EDT 2001


At 07:50 AM 9/3/2001 +0200, Jakob Østergaard wrote:
>On Sun, Sep 02, 2001 at 09:20:12PM -0700, Sakthivel Narayanan wrote:
> > Dear Lists,
> >
> >         We are having a 20 node linux cluster with
> > 24 port 10/100 Mbps Intel EtherExpress
> > 510T (manageable & stackable) switch. We would like
> > to add some more machines with the existing cluster.
> >
> > I want to buy one more Ethernet Switch and stack with
> > the existing Intel 510T switch.
> >
> > I need your suggestion for the following.
> >
> > 1. Can i go for one more Intel 510T E-switch with
> > stackable interface module and stack with the
> > existing switch.
>
>We have that here:
>
>The stacking module is advertised as 1Gbit, but when you receive it
>the docs will tell you it's actually 400 Mbit full duplex.  However,
>that may be enough (?)

This is likely coming from the 800 Mbps aggregated bandwidth
limitation of the 510T switch. Don't trust those advertised info.
They claimed this switch has a 2.2 Gb backplane, however,
some where in their datasheet, it has mentioned the 800 Mbps
limitation.

BTW, if you want to have a medium-sized cluster with good network
performance, I would suggest using the Cisco catalyst 2948G or
2980G, which has 48 or 80 FE ports respectively. I have tested
on the 2980G, its performance looks promising, however, I have
only tested it with 32 ports, which is the largest size of our
cluster :(



Cheers		
		
Anthony	
		
		
  		
       e Y8               d8    88
      d8b Y8     88*8e   d8888  88*e    88 88   88*8e  Y8b Y888
     d888b Y8    88 88b   88    88 88  88   88  88 88b  Y8b Y8
    d888888888   88 888   88    88 88  88   88  88 888   Y8b
   d888    b Y8  88 888   888   88 88   88 88   88 888    88
                                                         88
                                                        88





_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf



More information about the Beowulf mailing list