[Udpcast] Two or more clients drops bandwith by 2 orders of magnitude

William Oquendo woquendo at gmail.com
Sat Jul 3 06:07:43 CEST 2021


Hi, (I hope this list is still active)
I am a newbie. I am testing multicast support on three computers connected
through a gigabit switch. When only the server, ran as (rand.bin is a 1Gb
file)
udp-sender  --interface eth1   --file rand.bin
and ONE client
udp-receiver --file rand.bin
are connected, the bandwidth is around 937.32 Mbps, which is very good. But
with two or more clients if consistently drops to 11 Mbps
I would expect to bandwidth to decrease as 1/N, where N is the number of
clients.
What am I missing?
I am using a dumb switch.
Thanks

-- 

Best regards / Cordialmente,

William-Fernando Oquendo
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