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Unread 9 Feb 2004, 14:56   #1
Structural Integrity
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Network admins and broadcasting
Is it true network admins don't really appreciate broadcasts over their local network?
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Unread 9 Feb 2004, 16:13   #2
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Re: Network admins and broadcasting
No, they don't.. broadcast traffic eats bandwidth and turns a switch based network into a hub based (i.e. everyone is copied the data which in most cases isn't needed)

*looks at his works network and says no more*
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Unread 9 Feb 2004, 21:14   #3
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Re: Network admins and broadcasting
net send domain Please do not abuse broadcasts, also has anyone seen my sandwich.
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Unread 10 Feb 2004, 17:10   #4
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Re: Network admins and broadcasting
broadcasts kill bandwith, period
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Unread 10 Feb 2004, 20:32   #5
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Re: Network admins and broadcasting
It's for node discovery on a local network. The place I work now (for my final internship period) wants a P2P-like system for their products, and I thought a broadcast would be particulary kinky for easy node discovery.
The broadcast will still be in the prototype to show it's possible, but I now know what to put in my recommendation report at the end.
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Unread 10 Feb 2004, 23:52   #6
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Re: Network admins and broadcasting
Quote:
Originally Posted by Remy
broadcasts kill bandwith, period
It does more then that. In the simplist terms possiable, it also puts the line in use and hency gives a busy signal for everyone else.
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Unread 19 Feb 2004, 15:59   #7
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Re: Network admins and broadcasting
*Bump*

And what about multicast? Just got the input that multicasting is very handy for making a quick P2P app where nodes leave "advertisements" and "requests" on the network through a multicast mechanism.
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Unread 19 Feb 2004, 17:31   #8
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Re: Network admins and broadcasting
Instead of broadcasting to everyone, the machines ask centeral device what services are up and taking requests. Its common on Broadcast based protocols like IPX/SPX

I will need to double check this when I get home in my book because I am not 100% sure I am thinking the right thing.
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Unread 20 Feb 2004, 19:23   #9
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Re: Network admins and broadcasting
Yeh, something like a rendezvous node. I read some things about that. That could be a solution, but it requires a hard-code in the app or as a setting that has to be made. I don't really like that, but it's an option that should be in the app.
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Unread 21 Feb 2004, 02:15   #10
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Re: Network admins and broadcasting
Subnetting is the usual solution though.
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Unread 21 Feb 2004, 03:12   #11
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Re: Network admins and broadcasting
A possible, though odd, option to consider is to use SMTP to find out the IP of a connected server to connect to, and have each client respond to 'entry' requests on mail every minute or five or something. Fulfils some requirements, far from perfect but 'nutty'.
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