From: "Linus Lüssing" <linus.luessing@web.de>
To: netdev@vger.kernel.org
Cc: "Herbert Xu" <herbert@gondor.apana.org.au>,
bridge@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
"Adam Baker" <linux@baker-net.org.uk>,
"Stephen Hemminger" <stephen@networkplumber.org>,
"Linus Lüssing" <linus.luessing@web.de>,
"David S. Miller" <davem@davemloft.net>,
"Cong Wang" <amwang@redhat.com>
Subject: bride: IPv6 multicast snooping enhancements
Date: Wed, 4 Sep 2013 02:13:37 +0200 [thread overview]
Message-ID: <1378253619-23918-1-git-send-email-linus.luessing@web.de> (raw)
Hi,
Here are two, small feature changes I would like to submit to increase
the usefulness of the multicast snooping of the bridge code.
The first patch is an unaltered one I had submitted before, but since it
got no feedback I'm resubmitting it here for net-next. With the recently
added patch to disable snooping if there is no querier (b00589af + 248ba8ec05
+ 8d50af4fb), it should be a safe choice now (without these, patch 1/2 would
have introduced another potential for lost IPv6 multicast packets).
Both conceptually and also with some testing and fuzzing, I couldn't spot
any more causes for potential packet loss. And since the multicast snooping
code has now been tried by various people, I think it should be a safe
choice to apply the multicast snooping not only for IPv6 multicast packets
with a scope greater than link-local, but also for packets of exactly this
scope. The IPv6 standard mandates MLD reports for link-local multicast, too,
so we can safely snoop them as well (in contrast to IPv4 link-local).
Cheers, Linus
next reply other threads:[~2013-09-04 0:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-04 0:13 Linus Lüssing [this message]
2013-09-04 0:13 ` [PATCH net-next 1/2] bridge: prevent flooding IPv6 packets that do not have a listener Linus Lüssing
2013-09-04 0:13 ` [PATCH net-next 2/2] bridge: apply multicast snooping to IPv6 link-local, too Linus Lüssing
2013-09-05 16:36 ` bride: IPv6 multicast snooping enhancements David Miller
2015-02-10 8:44 ` Vasily Averin
2015-02-10 11:44 ` Linus Lüssing
2015-02-10 13:59 ` Vasily Averin
2015-02-12 11:41 ` Linus Lüssing
2015-02-12 12:01 ` Vasily Averin
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