If you have a moving MAC then you have a network that is flapping,
duplicate MAC, or worse a network loop. All of these are signs of a broken
L2 network. The bridge can't fix these
On Oct 26, 2017 19:33, <***@dell.com> wrote:
> Thank you for the reply.
> From: Toshiaki Makita <***@lab.ntt.co.jp>
> Sent: Thursday, October 26, 2017 4:13 AM
> To: Raiyani, Viraj; ***@lists.linux-foundation.org
> Subject: Re: [Bridge] Linux Bridge Static FDB move
> On 2017/10/26 1:47, ***@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