Stp Switch Settings - D-Link DES-3350SR User Manual

D-Link DES-3350SR Standalone Layer 3 Switch
RSTP is capable of more rapid transition to a forwarding state – it no longer relies on timer configurations – RSTP-compliant
bridges are sensitive to feedback from other RSTP-compliant bridge links. Ports do not need to wait for the topology to stabilize
before transitioning to a forwarding state. In order to allow this rapid transition, the protocol introduces two new variables: the
edge port and the point-to-point (P2P) port.
Edge Port
The edge port is a configurable designation used for a port that is directly connected to a segment where a loop cannot be created.
An example would be a port connected directly to a single workstation. Ports that are designated as edge ports, transition to a
forwarding state immediately without going through the listening and learning states. An edge port loses its status if it receives a
BPDU packet, immediately becoming a normal spanning tree port.
P2P Port
A P2P port is also capable of rapid transition. P2P ports may be used to connect to other bridges. Under RSTP, all ports operating
in full-duplex mode are considered to be P2P ports, unless manually overridden through configuration.
802.1d/802.1w Compatibility
RSTP can interoperate with legacy equipment and is capable of automatically adjusting BPDU packets to 802.1d format when
necessary. However, any segment using 802.1 STP will not benefit from the rapid transition and rapid topology change detection
of RSTP. The protocol also provides for a variable used for migration in the event that legacy equipment on a segment is updated
to use RSTP.

STP Switch Settings

In the Configuration folder open the Spanning Tree folder, then click on the STP Switch Settings link.
Figure 7 - 11. Switch Spanning Tree Settings window
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