netdev - Re: [PATCH net-next v2 0/4] bridge: implement Multicast Router Discovery (RFC4286)

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Message-Id: <20190122.171832.1199555290239452595.davem@davemloft.net>
Date:   Tue, 22 Jan 2019 17:18:32 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     linus.luessing@...3.blue
Cc:     netdev@...r.kernel.org, roopa@...ulusnetworks.com,
        nikolay@...ulusnetworks.com, kuznet@....inr.ac.ru,
        yoshfuji@...ux-ipv6.org, bridge@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 0/4] bridge: implement Multicast Router
 Discovery (RFC4286)

From: Linus Lüssing <linus.luessing@...3.blue>
Date: Mon, 21 Jan 2019 07:26:24 +0100

> This patchset adds initial Multicast Router Discovery support to
> the Linux bridge (RFC4286). With MRD it is possible to detect multicast
> routers and mark bridge ports and forward multicast packets to such routers
> accordingly.
> 
> So far, multicast routers are detected via IGMP/MLD queries and PIM
> messages in the Linux bridge. As there is only one active, selected
> querier at a time RFC4541 ("Considerations for Internet Group Management
> Protocol (IGMP) and Multicast Listener Discovery (MLD) Snooping
> Switches") section 2.1.1.a) recommends snooping Multicast Router
> Advertisements as provided by MRD (RFC4286).
> 
> 
> The first two patches are refactoring some existing code which is reused
> for parsing the Multicast Router Advertisements later in the fourth
> patch. The third patch lets the bridge join the all-snoopers multicast
> address to be able to reliably receive the Multicast Router
> Advertisements.
 ...

Series applied, thanks!