| From: | Florian Weimer <fweimer(at)bfk(dot)de> |
|---|---|
| To: | Steve Atkins <steve(at)blighty(dot)com> |
| Cc: | PostgreSQL Performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: Best way to index IP data? |
| Date: | 2008-01-14 08:27:52 |
| Message-ID: | 827iicizg7.fsf@mid.bfk.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
* Steve Atkins:
> I don't think there's ambiguity about what an dotted-quad without a
> netmask means, and hasn't been for a long time. Am I missing
> something?
Classful addressing is still part of many user interfaces, for
instance Cisco's IOS. It's not just that the CLI accepts it, it's
also the standard[*] output format (that is, "192.0.2.0" instead of
"192.0.2.0/24"; if no prefix length is given, the one based on the
class is used).
[*] I don't think you can switch it off. Obviously, for backwards
compatibility reasons, the default has to stay anyway.
--
Florian Weimer <fweimer(at)bfk(dot)de>
BFK edv-consulting GmbH http://www.bfk.de/
Kriegsstraße 100 tel: +49-721-96201-1
D-76133 Karlsruhe fax: +49-721-96201-99
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