Linux Ethernet Bridging - Oct 2017 - [Bridge] Linux Bridge Static FDB move

On 2017/10/26 1:47, Viraj.Raiyani at dell.com wrote:
> Hi Everyone,
> 
> 
> Is it possible to program the FDB entry in Linux Bridge which is static,
> non-local and doesn't move to new interface?when the same source?MAC
> packet comes on a different interface?in the same bridge???
AFAIK no.
Bridge supports static fdb entries, but br_fdb_update() updates their
dst even for static entries.
> 
> 
> I tried?programming the MAC as permanent that prevents?the moving of MAC
> to a new interface in the same bridge, however it treats the MAC as
> local and doesn't do the forwarding ?
Yes, local entries will deliver frames to the bridge device itself.

-- 
Toshiaki Makita

Thank you for the reply.

Viraj 
________________________________________
From: Toshiaki Makita <makita.toshiaki at lab.ntt.co.jp>
Sent: Thursday, October 26, 2017 4:13 AM
To: Raiyani, Viraj; bridge at lists.linux-foundation.org
Subject: Re: [Bridge] Linux Bridge Static FDB move

On 2017/10/26 1:47, Viraj.Raiyani at dell.com wrote:
> Hi Everyone,
>
>
> Is it possible to program the FDB entry in Linux Bridge which is static,
> non-local and doesn't move to new interface when the same source MAC
> packet comes on a different interface in the same bridge  ?
AFAIK no.
Bridge supports static fdb entries, but br_fdb_update() updates their
dst even for static entries.
>
>
> I tried programming the MAC as permanent that prevents the moving of MAC
> to a new interface in the same bridge, however it treats the MAC as
> local and doesn't do the forwarding ?
Yes, local entries will deliver frames to the bridge device itself.

--
Toshiaki Makita