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Reserved addresses in the SSM range




Regarding Hugh question about reserving addresses in the SSM address space,
I would suggest to reserve at least 255 addresses, or even more.

First, we have nothing to loose. 

Second, we all know that UDP and TCP reserved ports is proven to be helpful.

Third, especially if my suggestion about "Multicast on-demand" will be
accepted, a multicast server will have the ability to know if it has at
least one connected client to any given multicast address. In this case, we
can think of the following services, each given in a different, predefined,
multicast address:

1. Time service. The server's local time and time zone every second.
   Support packet-loss rate detection.
   Support "ping" for multicast.
   I suggest address 232.0.0.1 for this one.

2. CA service. Send certification about the server every 5 seconds.

3. Quote of the day service. Actually, quote of the minute.

4. Directory service. Send some information regarding the current server.
   Probably the most important service.

5. ...


Doron.