On Fri, May 06, 2016 at 05:48:35PM +0800, Terry T wrote: > The server has a 1G symmetrical fibre line. It has been speedtested to > various local servers to be close to 800-900M.
Ok, then we can rule out the Internet as the culprit.
> The server is configured as a bridge and is relaying multicasts
> continuously. Below is the server configuration.
[...]
> Mode = hub
You want to use Mode = switch here, otherwise every packet is broadcast
to every node.
> Cipher = none
> Digest = none
> MACLength = 0
> PMTUDiscovery = yes
PMTUDiscovery might not work correctly if Digest = none or MACLength
= 0, because then there is no way to tell from which node packets with
an unknown address/port combination comes. So it could be that this is
forcing communication between nodes that are behind a NAT to go via TCP.
I recommend that if you really want Digest = none, that you set:
PMTUDiscovery = no
PMTU = 1440
> Broadcast = direct
> DirectOnly = yes
It's best to remove those two lines for efficiency.
--
Met vriendelijke groet / with kind regards,
Guus Sliepen <[email protected]>
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