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Re: Need Quad Ethernet for router box
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: Need Quad Ethernet for router box
- From: Kevin <kkadow_(_at_)_gmail_(_dot_)_com>
- Date: Thu, 21 Jul 2005 02:09:22 -0500
- Reply-to: Kevin <kkadow_(_at_)_gmail_(_dot_)_com>
On 7/21/05, Bill Chmura <Bill_(_at_)_explosivo_(_dot_)_com> wrote:
> We finally got some money to build a router for the center of a 200-300
> user network. Upon arrival I found it to be one giant segment with old
> old switches (sort of - not real ones) and terrible sprawl.
> I need to build a router that will handle 7 segments, 4 of which are
> very heavily used, 3 of which are pretty light.
Can you define "very heavily used" ?
Have you considered aggregating the lightly-used segments in a slightly
more modern switch (e.g. a 3524XL), configuring a trunk port from the
switch to uplink multiple VLANs to a single GigE physical interface on the
Alternately, if you really do need router throughput at or above 1000Mbps,
you might want to consider a purpose-built gigabit router from Cisco :)
Both suggestions are under the assumption that the "router" is not primarily
intended as a security separation between subnets.
> I was contemplating a
> Quad gigabit card and a 100MB Quad card (to keep the price down). I've
> got a budget of $3000 US to build this thing. I was thinking the Intel
> Pro 1000 Quad cards, but thats pretty pricy considering I have to
> aquire the hardware also.
We are very happy with the ""Intel PRO/1000MT" quad copper GigE cards,
but we are not coming close to pushing their limits, I'm still waiting for OC-3.
> Can someone recommend another good obsd friendly good performer / value
> for the price Quad Ethernet 1000 card? If I can keep it down, I would
> use two and not do the 100MB on the slow segments.
> Also is going PCI-X going to get me much? I was reading some notes in
> the archives (obsd?) that showed the cards won't need it that much, and
> another post saying it was going to be slammed by a Quad card.
If you expect to push hundreds of megabits at peak through the multiport
card, then PCI-X will buy you some headroom. One caveat, many PCI-X
motherboards can only run one card at the full 133Mhz speed.
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