Hi, On Thu, 2019-02-14 at 07:01 -0500, Brian J. Murrell wrote:
On Thu, 2019-02-14 at 07:49 +0100, Thomas Haller via networkmanager-It's not clear to me what you mean. Do you mean, that the many RA received at NetworkManager cause NetworkManager to send too frequent RS (in turn, repeating a vicious cycle)?That's exactly how I understand the description from the author of the software on the router that is sending the RAs, yes: https://github.com/openwrt/odhcpd/issues/122#issuecomment-459263681
OK, makes sense.
Also, NM only sends RS based on timeouts, not based on RAs that it receives [1].Assuming no bugs, of course. Such as could the receiving of the multiple RAs perhaps be causing the timeout to get reset, etc.? How/when does the logging in send_rs_timeout: https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/src/ndisc/nm-ndisc.c?id=2c881b8064e1cb5b227e5a3c61abfe95c6ddd05a#n711 supposed to get logged?
In 1.10.2-16.el7_5, that code looks pretty similar. NetworkManager
should either log
"router solicitation sent"
or
"failure sending router solicitation: ...
for every RS that gets send.
Possibly the logging message was suppressed by journald's ratelimiting
(as the journal would tell you, if that's the case). Make sure to
disable rate-limiting, see [1].
[1] https://cgit.freedesktop.org/NetworkManager/NetworkManager/tree/contrib/fedora/rpm/NetworkManager.conf#n28
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