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From: Vladimir Oltean <olteanv@gmail.com>
To: Frank Wunderlich <frank-w@public-files.de>
Cc: Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Landen Chao <Landen.Chao@mediatek.com>,
	Sean Wang <sean.wang@mediatek.com>,
	DENG Qingfang <dqfext@gmail.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Daniel Golle <daniel@makrotopia.org>
Subject: Re: [BUG] vlan-aware bridge breaks vlan on another port on same gmac
Date: Mon, 30 Jan 2023 15:01:19 +0200	[thread overview]
Message-ID: <20230130130119.a36qt3t27xqahiup@skbuf> (raw)
In-Reply-To: <trinity-fd23c4a0-a979-475e-a077-330577d7d632-1674311727972@3c-app-gmx-bap60>

On Sat, Jan 21, 2023 at 03:35:28PM +0100, Frank Wunderlich wrote:
> btw. why is my vlan software-only and not pushed to hardware?

Short story, because committing it to hardware is a useless complication.
A standalone port should be VLAN-unaware, or i.o.w. it should not drop
based on VLAN port membership, shouldn't add or strip any VLAN header,
and should forward as if the VLAN wasn't there.

So the behavior of a standalone port is absolutely sufficient as a basis
for an 8021q upper interface to see the traffic it needs, and for the
traffic it sends to reach the outside world as it intended.

      reply	other threads:[~2023-01-30 13:01 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-20 16:45 [BUG] vlan-aware bridge breaks vlan on another port on same gmac Frank Wunderlich
2023-01-20 17:21 ` Vladimir Oltean
2023-01-20 23:34   ` [PATCH] mt7530 don't make the CPU port a VLAN user port kernel test robot
2023-01-21 12:11   ` Aw: Re: [BUG] vlan-aware bridge breaks vlan on another port on same gmac Frank Wunderlich
2023-01-21 12:22     ` Vladimir Oltean
2023-01-21 12:32       ` Aw: " Frank Wunderlich
2023-01-21 13:35         ` Vladimir Oltean
2023-01-21 14:12           ` Aw: " Frank Wunderlich
2023-01-30 12:58             ` Vladimir Oltean
2023-01-31 16:23               ` Aw: " Frank Wunderlich
2023-02-05 13:48                 ` Frank Wunderlich
2023-02-05 13:59                   ` Vladimir Oltean
2023-01-21 14:35           ` Aw: " Frank Wunderlich
2023-01-30 13:01             ` Vladimir Oltean [this message]

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