Is there something wrong in what I do? Does Windows behave
the same way?
On Linux, try this:
- if it's not installed already, install the netcat tool through your
distribution's package system
- make sure your multicast routing is set up properly
- do:
dd if=/dev/zero bs=1k count=100k | nc -u -q 1 239.255.0.16 1234
(on some distributions the nc command is called netcat, with the same syntax)
This sends 100MB of zeroes to the multicast address. On my PII/350 this gives:
102400+0 records in
102400+0 records out
104857600 bytes (105 MB) copied, 8.88197 seconds, 11.8 MB/s
...which is as close to the wire speed as one can expect. I cannot
test this on my PI/166, since it has no Fast Ethernet interface.
Note that this test may give false negatives. The netcat tool is not
optimized for speed (or processor loading), but if your computer can
get >11MB/sec with netcat, you can expect linrad to be able to get
the same amount of bandwidth. The opposite may not be true.
JD 'insomnia' B.
--
LART. 250 MIPS under one Watt. Free hardware design files.
http://www.lartmaker.nl/
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