Re: High Collision Rate

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From: QuarkBomb (spank_at_themonkey.net)
Date: 09/15/04 

Date: Wed, 15 Sep 2004 23:41:02 +0100

Plugging the 10Mbps computer into the switch still fives a very high
collision rate. This would suggest that what you say does not solve the
problem.

Thanks. 

-- 
www.CheaperThanBT.org.uk/2
"Michael Pardee" <anonymous@discussions.microsoft.com> wrote in message 
news:08a201c49b21$f6a87e00$a401280a@phx.gbl...
: The hub is unable to mediate the two speeds. You need a
: switch for that. Technically, hubs operate in ISO layer 1
: (essentially, hardware), switches operate in ISO layer 2
: (essentially, packets).
:
: Mike
:
: >-----Original Message-----
: >Hi,
: >
: >I have a 100Mbps hub connected via it's uplink port to a
: 100Mbps switch.
: >One of the machines connected to the hub is 10Mbps.
: >Now when the 10Mbps machine wants to transfer files to a
: machine located on
: >the switch, the hub experiences vary high collision
: rates on it's 10Mbps
: >portion, but no collisions are seen on it's 100Mbps
: portion or on the
: >switch.
: >This is giving me a very poor 100kB/s transfer rate,
: which is painful when
: >wanting to transfer 25GB of data!
: >I have set my network card to both half duplex and full
: duplex, but it only
: >ever achieves half duplex, and still has the high
: collision rate.
: >
: >Does anyone know what could be causing this, and how I
: can resolve the
: >problem?
: >Could be a bottleneck problem due to the 10/100
: switchover?  Maybe the
: >collisions are actually discards and not collisions?
: >
: >HUB: Netgear DS108
: >SWITCH: Netgear FS105
: >NIC: Realtek 10Mbps
: >
: >Thanks.
: >
: >-- 
: >
: >
: >
: >
: >
: >
: >www.CheaperThanBT.org.uk/2
: >
: >
: >.
: >

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