Re: Recommended L2 switches for a new IXP

[Bill Woodcock <woody () pch net>]

> On Jan 12, 2015, at 10:34 AM, Justin Wilson - MTIN <lists () 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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