Date: Thu, 24 May 2012 09:16:05 +0200 From: Luigi Rizzo <rizzo@iet.unipi.it> To: net@freebsd.org Subject: Any deployment with very many small (/28 .. /32) subnets ? Message-ID: <20120524071605.GB50710@onelab2.iet.unipi.it>
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Also related to my previous question on lookups, I believe some ISPs may have a huge number of very small subnets (say /28 or even smaller) attached to some kind of virtual interfaces (vlans, gif, tun,...). Can anyone comment on what the numbers are (i.e. 100-1k-10k subnets ?) and whether the subnets are taken from a single larger pool which only includes such subnets, or they are randomly scattered across a large number of /24 subnets ? thanks luigi
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