D-Link DES-3326SR User Manual page 286

DES-3326SR Layer 3 Fast Ethernet Switch User's Guide
The STP on the switch level blocks redundant links between
switches (and similar network devices). The port level STP will
block redundant links within an STP Group.
It is advisable to define an STP Group to correspond to a VLAN
group of ports.
The following fields can be set:
Parameter Description
Cost
Priority <128>
Migration <No>
A Port Cost can be set from 1 to
200000000. The lower the number,
the greater the probability the port
will be chosen to forward packets.
Default port cost:
100Mbps port = 200000
Gigabit ports = 20000
A Port Priority can be from 0 to 240.
The lower the number, the greater
the probability the port will be
chosen as the Root Port.
Select Yes or No. Choosing Yes will
enable the port to migrate from
802.1d STP status to 802.1w RSTP
status. RSTP can
standard STP, however the benefits
of RSTP are not realized on a port
where an 802.1d network connects
to an 802.1w enabled
Migration should be enabled (yes) on
ports connected to network stations
or segments that will be upgraded to
802.1w RSTP on all or some portion
of the segment.
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coexist with
network.