From: Sowmini Varadhan <redacted>
Date: Tue, 12 Jan 2016 09:47:25 -0500

On (01/12/16 17:40), Stas Sergeev wrote:

quoted

Updated testing results:
After I disabled shared_media not only for "all", but
also for _all_ interfaces individually, the problem seem to
have stopped. So thanks for these hints.
Now, as the media is actually really shared (same NIC/cable),
I just wonder what's going on here.

I dont know the history of the shared_media tunable (or
the rationale behind the default) - I was just reading out the
code - perhaps someone on the list who has the history can share 
the motivation behind this tunable.

Most of the choices for defaults for ipv4 routing and ARP behavior
are motivated by two things:

1) host based addressing model

2) increasing the chance of successful communication with peers