Subj : Re: Weekly nodelist report on noteworthy changes (238)
To   : Michiel van der Vlist
From : Wilfred van Velzen
Date : Wed Aug 31 2022 10:26:43

Hi Michiel,

On 2022-08-31 09:25:06, you wrote to Torsten Bamberg:

 MvdV> But why would anyone want to use an inefficient means of
 MvdV> transporting data when an efficient means is available?

 MvdV> I am still puzzled about the added value of using ISDN over IP for Fido. I
 MvdV> can see two reasons for advertising ISDN as an alternative way of
 MvdV> connection in the nodelist:

 MvdV> 1) As a fall back in case the "normal" connection fails. In the case of
 MvdV> ISDN over IP, this fails. If the IP connection is down, the ISDN over IP is
 MvdV> also down. It is not an independant means of connection, so it is useless
 MvdV> as a fall back.

 MvdV> 2) During the transition fase. When there are still nodes around that only
 MvdV> support "classic" ISDN and that have no IP connection. ISDN over IP can be
 MvdV> used to connect with these nodes. But that will end at the end of the year
 MvdV> when German Telecom shuts down "classic" ISDN. And maybe if the dead wood
 MvdV> is cleared from the nodelist, that situation already exists now in R24.

As I understand it, it is to be able to use old equipment that doesn't support communication over IP. Like a dos computer with an ISDN modem. Or the operator doesn't want to upgrade his system to software that supports communication over IP...

Bye, Wilfred.

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