RSTP

RSTP achieves rapid network convergence by allowing a newly elected root port or designated port to enter the forwarding state much faster than STP.

A newly elected RSTP root port rapidly enters the forwarding state when the following conditions exist:

• The old root port on the device has stopped forwarding data.

• The upstream designated port has started forwarding data.

A newly elected RSTP designated port rapidly enters the forwarding state if it is an edge port or it connects to a point-to-point link.

• A port that directly connects to a user terminal can be configured as an edge port. Edge ports directly enter the forwarding state.

• When a designated port connects to a point-to-point link, it enters the forwarding state immediately after the device receives a handshake response from the directly connected device.