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Chapter 6 – Configuring Rapid Spanning Tree
without any listening and learning delays. The MAC tables of Edge ports do not
need to be flushed when topology changes occur in the STP network.
Unlike an STP disabled port, accidentally connecting an edge port to another port
in the spanning tree will result in a detectable loop. The "edgeness" of the port
will be switched off and the standard RSTP rules will apply (until the next link
outage).
Point To Point
RSTP uses a peer-to-peer protocol that provides for rapid transitioning on point-
to-point links. This protocol is automatically turned off in situations where
multiple STP bridges communicate over a shared (non point to point) LAN.
The bridge will automatically take point to point to be true when the link is found
to be operating full duplex. The point-to-point parameter allows this behaviour or
overrides it, forcing point to point to be true or false. Force the parameter true
when the port operates a point-to-point link but cannot run the link full duplex.
Force the parameter false when the port operates the link full duplex, but is still
not point to point (e.g. a full duplex link to an unmanaged bridge that concentrates
two other STP bridges).
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