Nortel 120, Инструкция по использованию

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62 System configuration management
with the lowest MAC address then becomes the root device. (Note that
lower numeric values indicate higher priority.)
— Range: 0-65535
— Default: 32768
• Bridge Max Age—The maximum time (in seconds) a device can
wait without receiving a configuration message before attempting to
reconfigure. All device ports (except for designated ports) must receive
configuration messages at regular intervals. Any port that ages out
STP information (provided in the last configuration message) becomes
the designated port for the attached LAN. If it is a root port, a new root
port is selected from among the device ports attached to the network.
(Range: 6-40 seconds)
— Default: 20
— Minimum: The higher of 6 or [2 x (Hello Time + 1)].
— Maximum: The lower of 40 or [2 x (Forward Delay - 1)]
• Bridge Hello Time—Interval (in seconds) at which the root device
transmits a configuration message. (Range: 1-10 seconds
— Default: 2
— Minimum: 1
— Maximum: The lower of 10 or [(Max. Message Age / 2) -1]
• Bridge Forwarding Delay—The maximum time (in seconds) this
device waits before changing states (that is, 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
can make it return to a discarding state; otherwise, temporary data loops
might result. (Range: 4-30 seconds)
— Default: 15
— Minimum: The higher of 4 or [(Max. Message Age / 2) + 1]
— Maximum: 30
•
Link Path Cost—This parameter is used by the STP to determine the
best path between devices. Therefore, lower values must be assigned
to ports attached to faster media, and higher values assigned to ports
with slower media. (Path cost takes precedence over port priority.)
— Range: 1-65535
— Default: Ethernet interface: 19; Wireless interface: 40
BAP120
Using the Nortel Business Access Point 120
NN47921-301 01.01 Standard
1.0 August 2006
Copyright © 2006, Nortel Networks Nortel Networks Confidential
.