nanog mailing list archives
Re: Recommended L2 switches for a new IXP
From: Mark Tinka <mark.tinka () seacom mu>
Date: Mon, 12 Jan 2015 22:11:10 +0200
On Monday, January 12, 2015 05:54:38 PM Bill Woodcock wrote:
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.
Would tend to agree with this approach, and the above. Multi-rate (i.e., 1Gbps/10Gbps SFP/SFP+) standalone 1U switches are reasonable these days. The issue you'll probably run into with them is limited support for features you find being implemented by larger exchange points (VPLS, Sflow, e.t.c.), and quirks with the hardware that could impact things like Layer 2 or Layer 3 filtering (especially if they are using off-the-self silicon), e.t.c. Test before you buy, in as far as you can anticipate your (growth) needs. Mark.
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Current thread:
- Recommended L2 switches for a new IXP Manuel MarĂn (Jan 11)
- Re: Recommended L2 switches for a new IXP Mike Hammett (Jan 12)
- Re: Recommended L2 switches for a new IXP Aaron (Jan 12)
- Re: Recommended L2 switches for a new IXP Justin Wilson - MTIN (Jan 12)
- Re: Recommended L2 switches for a new IXP Martin Hannigan (Jan 12)
- Re: Recommended L2 switches for a new IXP Bill Woodcock (Jan 12)
- Re: Recommended L2 switches for a new IXP Mark Tinka (Jan 12)
- RE: Recommended L2 switches for a new IXP Tony Wicks (Jan 12)
- Re: Recommended L2 switches for a new IXP Mehmet Akcin (Jan 12)
- Re: Recommended L2 switches for a new IXP Christopher Morrow (Jan 12)
- Re: Recommended L2 switches for a new IXP Mark Tinka (Jan 12)
- Re: Recommended L2 switches for a new IXP Stepan Kucherenko (Jan 13)
- Re: Recommended L2 switches for a new IXP Eduardo Schoedler (Jan 13)
- Re: Recommended L2 switches for a new IXP Jeff Tantsura (Jan 13)
- Re: Recommended L2 switches for a new IXP Nick Hilliard (Jan 13)
- Re: Recommended L2 switches for a new IXP Jeff Tantsura (Jan 13)
- Re: Recommended L2 switches for a new IXP Mark Tinka (Jan 13)
- Re: Recommended L2 switches for a new IXP Aaron (Jan 12)
- Re: Recommended L2 switches for a new IXP Mike Hammett (Jan 12)