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5 Configuration D-Link Web Smart Switch User Manual
State: Use the drop-do
wn menu to enable or disable STP by per-port based. It will be selectable after the
global STP is enabled.
External Cost: This defines a metric that indicates the relative cost of forwarding packets
to the specified port list. Port cost can be set automatically or as a metric value. The
default value is 0 (auto).
0 (auto) - Setting 0 for the external cost will automatically set the speed for forwarding packets to the
specified port(s) in the list for optimal efficiency. Default port cost: 100Mbps port = 200000. Gigabit
port = 20000.
Value 1-200000000 - Define a value between 1 and 200000000 to determine the external cost. The
lower the number, the greater the probability the port will be chosen to forward packets.
Migrate: Setting this parameter as Yes will set the ports to send out BPDU packets to other bridges,
requesting information on their STP setting. If the Switch is configured for RSTP, the port will be capable to
migrate from 802.1d STP to 802.1 ports connected to network
s or segments that ar all or some portion of the
egment.
e loops,
t receive BPDU packets. If a BPDU packet is received, it automatically loses edge
ecting
rt status automatically.
ult setting is 128.
greater the probability the port will be chosen as a root port.
2P: Choo
ports, h
Like ed
false in e port cannot have p2p status. Auto allows the port to have p2p status whenever
possibl operate as if the p2p status were true. If the port cannot maintain this status, (for example if the
port is f
default
s the port from propagating received TCN and to other ports. The default value is False.
w RSTP. Migration should be set as yes on
e capable of being upgraded to 802.1w RSTP onstation
s
Edge: Selecting the True parameter designates the port as an edge port. Edge ports cannot creat
however an edge port can lose edge port status if a topology change creates a potential for a loop. An edge
port normally should no
port status. Selecting the False parameter indicates that the port does not have edge port status. Sel
the Auto parameter indicates that the port have edge port status or not have edge po
rity of each port. Selectable range is from 0 to 240, and the defaPriority: Specify the prio
The lower the number, the
P sing the True parameter indicates a point-to-point (P2P) shared link. P2P ports are similar to edge
owever they are restricted in that a P2P port must operate in full-duplex.
ge ports, P2P ports transition to a forwarding state rapidly thus benefiting from RSTP. A p2p value of
dicates that th
e and
orced to half-duplex operation) the p2p status changes to operate as if the p2p value were False. The
setting for this parameter is Auto.
Restricted Role: Toggle between True and False to set the restricted role state of the packet. If set to True,
the port will never be selected to be the Root port. The default value is False.
Restricted TCN: Toggle between True and False to
set the restricted TCN of the packet. Topology Change
Notification (TCN) is a BPDU that a bridge sends out to its root port to signal a topology change. If set to
True, it stop
Click Apply for the settings to take effect. Click Refresh to renew the page.
L2 Functions > Link Aggregation > Port Trunking
The Trunking function enables the combining of two or more ports together to increase bandwidth. Up to
eight Trunk groups may be created, and each group consists up to eight ports. Select the ports to be
grouped together, and then click Apply to activate the selected Trunking groups. Two types of link
aggregation can be selected:
Static - Static link aggregation.
LACP - LACP (Link Aggregation Control Protocol) is enabled on the device. LACP allows for the
automatic detection of links in a Port Trunking Group.
Disable - Remove all members in this trunk group.
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