netdev - Re: marvell switch

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Message-ID: <CAJ2oMh+MwfKZwMiVsy_1a+-gyoj3cw=wZdC6hOnLPtRDbygrNw@mail.gmail.com>
Date:   Fri, 6 Apr 2018 10:23:30 +0300
From:   Ran Shalit <ranshalit@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org
Subject: Re: marvell switch

On Thu, Apr 5, 2018 at 11:46 PM, Andrew Lunn <andrew@...n.ch> wrote:
>> > Hi Ran
>> >
>> > The Marvell driver makes each port act like a normal Linux network
>> > interface. So if you want to enable a port, do
>> >
>> > ip link set lan0 up
>> >
>> > Want to add an ip address to a port
>> >
>> > ip addr add 10.42.42.42/24 dev lan0
>> >
>> > Want to bridge two ports
>> >
>> > ip link add name br0 type bridge
>> > ip link set dev br0 up
>> > ip link set dev lan0 master br0
>> > ip link set dev lan1 master br0
>> >
>> > Just treat them as normal interfaces.
>> >
>>
>> If I may please ask,
>> What is the purpose of using bridge for configuring switch interfaces.
>> Is it in order to isolate some ports from others?
>> I ask because according to my understanding the default configuration of
>> the driver is to enable switch in "flat" configuration, i.e. as if all
>> ports are connected to each other.
>
> Please think about what i said. They are standard Linux network
> interfaces. Do standard Linux network interfaces bridge themselves
> together by default? No, you need to configure a bridge.
>
>          Andrew

I understand now...
Thank you very much.
ranran