netdev - query on VLAN with linux DSA ports

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Message-ID: <CAEFUPH2npsz4XKna0KYjOeU_MfYN-bVTw25jn6m2dS+f32RuxQ@mail.gmail.com>
Date: Thu, 24 Oct 2024 07:14:28 -0700
From: SIMON BABY <simonkbaby@...il.com>
To: netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>
Subject: query on VLAN with linux DSA ports

Hello Team,

Can I know what is the best way of  implementing VLAN on linux DSA user ports ?

I would like to know if I can go with VLAN interface or VLAN filtering
on bridge interface. I am using Marvel DSA  (88E6390) running on Linux
6.1 kernel.

Below is my requirement.

eth0 (conduit interface)

lan1 ----VLAN 10    192.168.1.1/24
lan2 ----VLAN 10

lan3 -----VLAN 20   192.168.2.1/24

lan4------VLAN 30    192.168.3.1/24

Do I need to create a separate bridge interface for each port which
belongs to different subnets?

Is it better to use a VLAN aware bridge (with vlan_filitering = 1) or
create multiple vlan interfaces ?

Thanks, Simon