On Fri, 15 Dec 2006 14:19:08 +0100 Lennert Buytenhek <buytenh at wantstofly.org> wrote: > On Mon, Oct 30, 2006 at 07:28:37AM -0800, Stephen Hemminger wrote: > > > > Could somebody explain, why bridge uses minimal MAC of the attached devices? > > > It makes this address instable, variable during bridge life-cycle, which is > > > not good for DHCP. For example, I want to attach multiple virtual devices to > > > one physical. Then, I need to make sure that after each virtual device > > > addition, bridge addr is not changed and still addr of the physical device. > > > Why not to use MAC of the first attached device? > > > > The bridge physical address is the minimum of all the attached devices. > > This is done because the STP standard requires it. You can reset it > > to be the same as any of the attached devices. This will not cause a > > problem unless using STP. > > You can in fact use any MAC address. The STP standard recommends using > the minimum address, as that is deterministic, and so it doesn't depend > on the order in which you enslave subdevices. So should restriction be lifted? Please update wiki page FAQ, or I'll do it
