<![CDATA[Multicast slow, only 10Mbit/s]]>Server
  • FOG Version: 1.3.0. RC 11 SVN 5956
  • OS: Ubuntu x64 16.04.1
Client
  • Service Version:
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Description

Hi. I have problem. Unicast use maximum speed (1Gbit/s) but Multicast only 10Mbit/s. SVN Revision: 5956. Iperf3 test TCP and UDP runs on 1Gbit. Anyone have solution?

]]>http://forums.fogproject.org/topic/8670/multicast-slow-only-10mbit-sRSS for NodeFri, 08 May 2026 08:53:34 GMTFri, 30 Sep 2016 10:57:26 GMT60<![CDATA[Reply to Multicast slow, only 10Mbit/s on Fri, 30 Sep 2016 17:58:53 GMT]]>@czajne what is the exact switch you’re using? What happens when you multicast to just 2 computers ?

]]>http://forums.fogproject.org/post/79977http://forums.fogproject.org/post/79977Fri, 30 Sep 2016 17:58:53 GMT<![CDATA[Reply to Multicast slow, only 10Mbit/s on Fri, 30 Sep 2016 12:36:11 GMT]]>@Tom-Elliott Ok. What information will be useful?

]]>http://forums.fogproject.org/post/79950http://forums.fogproject.org/post/79950Fri, 30 Sep 2016 12:36:11 GMT<![CDATA[Reply to Multicast slow, only 10Mbit/s on Fri, 30 Sep 2016 12:07:19 GMT]]>Like I said, that doesn’t give us anything.

Maybe your switches are filtering UDP traffic?

]]>http://forums.fogproject.org/post/79947http://forums.fogproject.org/post/79947Fri, 30 Sep 2016 12:07:19 GMT<![CDATA[Reply to Multicast slow, only 10Mbit/s on Fri, 30 Sep 2016 11:40:45 GMT]]>Testing on two PC same type as fog server. Unicast restoring speed is 4-5GB/min for each, multicast ~160MB/min.

0_1475235346851_Zrzut ekranu z 2016-09-30 13-30-38.png 0_1475235353074_Zrzut ekranu z 2016-09-30 13-34-30.png

]]>http://forums.fogproject.org/post/79940http://forums.fogproject.org/post/79940Fri, 30 Sep 2016 11:40:45 GMT<![CDATA[Reply to Multicast slow, only 10Mbit/s on Fri, 30 Sep 2016 11:12:55 GMT]]>Multicast is highly dependent on ALL variables of hosts.

For example, a one to one UDP test might prove 1GB is still applicable, but One to many, and one host with a 10Mbps link will put ALL hosts in the multicast group at 10 Mbps.

Can you provide more details on your setup?

]]>http://forums.fogproject.org/post/79936http://forums.fogproject.org/post/79936Fri, 30 Sep 2016 11:12:55 GMT