From: Stephen Hemminger <stephen@networkplumber.org>
To: Madhu Challa <challa@noironetworks.com>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] iproute2: Extend ip address command to enable multicast group join/leave on IP level.
Date: Tue, 17 Feb 2015 11:34:18 -0500 [thread overview]
Message-ID: <20150217113418.2811716d@uryu.home.lan> (raw)
In-Reply-To: <1424125415-4616-1-git-send-email-challa@noironetworks.com>
On Mon, 16 Feb 2015 14:23:35 -0800
Madhu Challa <challa@noironetworks.com> wrote:
> Joining multicast group on ethernet level via "ip maddr" command would
> not work if we have an Ethernet switch that does igmp snooping since
> the switch would not replicate multicast packets on ports that did not
> have IGMP reports for the multicast addresses.
>
> Linux vxlan interfaces created via "ip link add vxlan" have the group option
> that enables then to do the required join.
>
> By extending ip address command with option "autojoin" we can get similar
> functionality for openvswitch vxlan interfaces as well as other tunneling
> mechanisms that need to receive multicast traffic. The kernel code is
> structured similar to how the vxlan driver does a group join / leave.
>
> example:
> ip address add 224.1.1.10/24 dev eth5 autojoin
> ip address del 224.1.1.10/24 dev eth5
>
> Signed-off-by: Madhu Challa <challa@noironetworks.com>
You need to get MCAUTOJOIN into net-next first.
prev parent reply other threads:[~2015-02-17 16:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-16 22:23 [PATCH] iproute2: Extend ip address command to enable multicast group join/leave on IP level Madhu Challa
2015-02-17 16:34 ` Stephen Hemminger [this message]
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