INTELLINET NETWORK 560559 16 Ports Gigabit + 2 Gigabit SFP PoE+ Web Management Ethernet Switch User Manual - Manual (Page 28)

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is detecting network loops. Where more than one port is assigned the highest priority, the port with the lowest
numeric identifier will be enabled. (Range: 0-240, in steps of 16; Default: 128)
■ P2P - The link type attached to an interface can be set to automatically detect the link type, or to be manually
configured as a point-to-point or shared medium. Transition to the forwarding state is faster for point-to-point
links than for shared media. These options are described below.
■
Auto - The switch automatically determines if the interface is attached to a point-to-point link or to a shared
medium. (This is the default setting.)
■
True - A point-to-point connection to exactly one other bridge.
■
False - A shared connection to two or more bridges.
■ Edge (Fast Forwarding) - You can enable this option if an interface is attached to a LAN segment that is at the
end of a bridged LAN or to an end node. Since end nodes cannot cause forwarding loops, they can pass directly
through to the spanning tree forwarding state. Specifying edge ports provides quicker convergence for devices
such as workstations or servers; retains the current forwarding database to reduce the amount of frame flooding
required to rebuild address tables during reconfiguration events; does not cause the spanning tree to initiate
reconfiguration when the interface changes state; and also overcomes other STP-related timeout problems.
However, remember that this feature should only be enabled for ports connected to an end node device. (Default:
False)
■ State - Displays the current state of this port within the Spanning Tree.
■
Disabled - There is no connection to the port.
■
Discarding - Port receives STP configuration messages, but does not forward packets.
■
Learning - Port has transmitted configuration messages for an interval set by the Forward Delay parameter
without receiving contradictory information. The port address table is cleared, and the port begins learning
addresses.
■
Forwarding - Port forwards packets and continues learning addresses.
■ Role - Roles are assigned according to whether the port is part of the active topology connecting the bridge to
the root bridge (that is, root port), connecting a LAN through the bridge to the root bridge (that is, designated
port), or is an alternate or backup port that may provide connectivity if other bridges, bridge ports or LANs fail
or are removed. The role is set to disabled (that is, disabled port) if a port has no role within the spanning tree.
■ Path Cost - The path cost setting for the port.
■
Config - The administrator configured path cost setting.
■
Actual - The contribution of this port to the path cost of paths toward the spanning tree root that includes this
port.
■ P2P - The point-to-point setting for the port.
■
Config - The administrator-configured P2P setting.
■
Actual - The operational point-to-point status of the LAN segment attached to this interface. This parameter
is determined by manual configuration or by auto-detection.
■ Edge — The Edge setting for the port.
■
Config — The administrator-configured Edge setting.
■
Actual — This parameter is initialized to the port setting for Edge (that is, True or False), but will be set to
false if a BPDU is received, indicating that another bridge is attached to this port.