Re: RIPE DNS Hostcount October 1992
- Date: Tue, 3 Nov 1992 10:06:26 +0000 (GMT)
Marten Terpstra writes:
>
>
> bob@localhost writes:
> * Marten,
> *
> * > The UK and DE have been counted by ULCC and DE-NIC,
> * > and the output collected at the NCC. As you will see, this has increased
> * > counts for both countries quite significantly, especially the UK.
> *
> * The increase in UK figures you saw may not be due to the method of
> * collection, but rather a real effect. Our own figures showed a substantial
> * increase this month -- about 4,200 "real" hosts. (Our accounting of
> * "real" hosts is always a bit more conservative than yours -- we identified
> * 40636 this month, rather than the 43301 you saw. This is possibly because
> * we have a better (local) understanding of what constitutes a duplicate?)
>
> I don't get it. Tony uses *exactly* the same tools for counting as I do, so
> it is quite impossible that the definition of duplicates is different,
> because the tools decides what is a duplicate and what is not.
> Also, from private mails between Tony and me, his count has always been
> higher than mine, and Tony has been using the same tools right from the
> start. If you are not talking about the figures Tony regularly sends around
> in the UK, what other hostcount measure do you take ?
> I understand that some of the increase is real increase, but the rest is
> increase due to to better connectivity.
>
Marten and Bob are right. We had a big jump with a lot of delegations this mont
but unfortunately, the count Bob got
(my monthly auto-script) actually didn't get as much as the local count I
did for Marten. We lost a couple of zones for some reason that had a lot of
duplicates. As Marten says I do use the same tools so it is not a local
understanding of duplicates thing. I hope this clears this up.
> As for the duplicates, our program defines a host with more than one hostname
> for the same IP address as a duplicate host. So for instance;
>
> mail.Munich.Germany.eu.net 86400 IN A 139.4.6.1
> victoria.Munich.Germany.eu.net 86400 IN A 139.4.6.1
>
> is counted as one (1) duplicate host, because it is the same machine with
> more than one name. These duplicates are checked inside the domain it is
> counting; in case of the hostcount this is the top-level domain. Also of
> course, hosts with more than one IP address are only counted once, but these
> do not show up in the duplicates.
>
> * We still have a considerable number of JIPS sites that have not yet
> * delegated so I guess we'll carry on growing for a while yet...
>
> I guess so. You should be able to get very near Germany soon ...
This is true. We have a lot of zone still not delegated.
>
> -Marten
