> On Jan 12, 2015, at 10:34 AM, Justin Wilson - MTIN <li...@mtin.net> wrote: > Cost per port is what we always look at. If we are going into a market where > there won’t be much growth we look at Cisco and Force 10. Their cost per > port is usually cheaper for smaller 10 Gig switches. You need something that > is fairly robust.
We see a lot of IXPs being formed or upgrading with Cisco Nexus 3524 switches,
which have 48 1G-10G SFP/SFP+ physical ports, license-limited to 24 active,
upgradeable to 48 active.
FWIW, 83% of IXPs have 48 or fewer participants, and 70% of IXPs have 24 or
fewer participants. And the failure rate of chassis-based switches is _way_
higher than that of stand-alone switches. So we never recommend that an IXP
buy a switch larger than necessary to accommodate 18 months
reasonably-projectable growth.
-Bill
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