[Bridge] Bridge port states

Stephen Hemminger shemminger at osdl.org
Wed Jan 19 10:31:28 PST 2005

On Wed, 19 Jan 2005 18:49:02 +0100
Patrick Stuedi <stuedip at student.ethz.ch> wrote:

> Hi all,
> Can anyone explain me why we need all this per port state information. A 
> bridge port seems to be either in BR_STATE_LISTENING, BR_STATE_LEARNING 
> or BR_STATE_FORWARDING. I don't get it, thought the bridge is learning 
> from MAC addresses of the received packets, therefore while listening. 
> Why a bridge port distinquishes these states?
> Thanx,
> Patrick

For full detail get the IEEE spec for bridging 802.1G


Port states are described in lots of detail in 7.4

Stephen Hemminger	<shemminger at osdl.org>

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