From: Andrew Lunn <andrew@lunn•ch>
To: Dongpo Li <lidongpo@hisilicon•com>
Cc: netdev <netdev@vger•kernel.org>
Subject: Re: question about function igmp_stop_timer() in net/ipv4/igmp.c
Date: Tue, 25 Oct 2016 14:19:36 +0200 [thread overview]
Message-ID: <20161025121936.GI22417@lunn.ch> (raw)
In-Reply-To: <580F471D.5050204@hisilicon.com>
> Otherwise the host can't send IGMP leave message when it leaves the
> group because the im->reporter is 0.
Leave is optional for IGMP v2, so net sending it is fine. And only a
querier is going to take any notice of it.
What happens when you have a querier in your network and you are using
IGMPv3. That is the use case which matters.
Andrew
prev parent reply other threads:[~2016-10-25 12:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 11:50 question about function igmp_stop_timer() in net/ipv4/igmp.c Dongpo Li
2016-10-24 15:32 ` Andrew Lunn
2016-10-25 1:13 ` Dongpo Li
2016-10-25 7:39 ` Andrew Lunn
2016-10-25 11:50 ` Dongpo Li
2016-10-25 12:19 ` Andrew Lunn [this message]
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