User's Manual

Chapter 3 | System Settings
Bridge STP Configuration
– 47 –
to the network.
(Default: 20 seconds; Range: 6-40 seconds)
Minimum: The higher of 6 or [2 x (Hello Time + 1)].
Maximum: The lower of 40 or [2 x (Forward Delay - 1)]
◆ Hello Time — Interval (in seconds) at which the root device transmits a
configuration message. (Default: 2 seconds; Range: 1-10 seconds)
Minimum: 1
Maximum: The lower of 10 or [(Max. Message Age / 2) -1]
◆ Forwarding Delay — The maximum time (in seconds) this device waits before
changing states (i.e., discarding to learning to forwarding). This delay is
required because every device must receive information about topology
changes before it starts to forward frames. In addition, each port needs time to
listen for conflicting information that would make it return to a discarding
state; otherwise, temporary data loops might result. (Default: 15 seconds;
Range: 1-30 seconds)
Minimum: The higher of 1 or [(Max. Message Age / 2) + 1]
Maximum: 30
Ethernet Interface
Sets STP settings for the Ethernet port.
◆ Link Path Cost — This parameter is used by the STP to determine the best path
between devices. Therefore, lower values should be assigned to ports attached
to faster media, and higher values assigned to ports with slower media. (Path
cost takes precedence over port priority.) (Default: 4; Range: 1-65535)
◆ Link Port Priority — Defines the priority used for this port in the Spanning
Tree Protocol. If the path cost for all ports on a switch are the same, the port
with the highest priority (i.e., lowest value) will be configured as an active link in
the spanning tree. This makes a port with higher priority less likely to be
blocked if the Spanning Tree Protocol is detecting network loops. Where more
than one port is assigned the highest priority, the port with lowest numeric
identifier will be enabled. (Default: 32; Range: 0-63)
Wireless Interface
Sets STP settings for the radio interface.
◆ Index — Describes the VAP in question.
◆ Link Path Cost — This parameter is used by the STP to determine the best path
between devices. Therefore, lower values should be assigned to ports attached
to faster media, and higher values assigned to ports with slower media. (Path
cost takes precedence over port priority.) (Default: 19; Range: 1-65535.)