Re: Best way to index IP data?
| От | Florian Weimer |
|---|---|
| Тема | Re: Best way to index IP data? |
| Дата | |
| Msg-id | 827iicizg7.fsf@mid.bfk.de обсуждение исходный текст |
| Ответ на | Re: Best way to index IP data? (Steve Atkins <steve@blighty.com>) |
| Ответы |
Re: Best way to index IP data?
|
| Список | 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@bfk.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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