D-Link 3100 24 User Manual - Page 90
Field, Description, Forwarding BPDU, State, False, Disabled, Enabled, Global, STP Bridge
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DGS-3100 Series Gigabit Stackable Managed Switch User Manual Field Description packets. Edge Indicates whether the selected port is an edge port. The possible field values are: True - Defines the port as an edge port. Edge ports cannot create loops; however, they can lose edge port status if a topology change creates a potential for a loop. An edge port normally should not receive BPDU packets. If a BPDU packet is received, it automatically loses edge port status. False - Indicates that the port does not have edge port status. Forwarding BPDU Bridges use Bridge Protocol Data Units (BPDU) to provide spanning tree information. STP BPDUs filtering is useful when a bridge interconnects two regions; each region needing a separate spanning tree. BPDU filtering functions only when STP is disabled either globally or on a single interface. The possible field values are: Disabled - BPDU filtering is enabled on the port. Enabled - BPDU forwarding is enabled on the port (if STP is disabled). Global - BPDU filtering functions according to the device-wide setting (see STP Bridge Global Settings Page). P2P Indicates whether the selected port is P2P is enabled. The possible field values are: True - Indicates a point-to-point (P2P) link, P2P ports transition to a forwarding state rapidly thus benefiting from RSTP. False - Indicates that the port cannot have P2P status. Auto - Allows the port to have P2P status whenever possible and operate as if the P2P status were true. (A port that operates in full-duplex is assumed to be point-to-point, while a half-duplex port is considered as a shared port) If the port cannot maintain this status, (for example if the port is forced to half-duplex operation) the P2P status changes to operate as if the P2P value were False. The default setting is Auto. State Set to enable or disable STP for the selected group of ports. The default is Enabled. The port STP State overrides the STP Global State 2. Define the Unit, From Port, To Port, Cost, Edge, P2P, and State fields. 3. Click . The STP Port Settings are defined, and the device is updated. 78