ProSoft Technology RLXIB-IHA-A - Manual (Page 55)

RLXIB-IHA ♦ 802.11a Radio Configuration / Diagnostic Utility
RadioLinx® 802.11a Industrial Hotspot User Manual
ProSoft Technology, Inc. Page 55 of 123
July 25, 2013
Field Description
Bridge Times The values in this list configure the timing intervals to use.
Priority This setting determines who should be the root of the RSTP. The
RSTP device with the lowest priority becomes the root. The accepted
standard value for this is 32768. If wired switches exist in the network
that support RSTP, they should always be allowed to be the root.
Set this value to 32769 to prevent the radio from being the root over a
wired switch. Use this setting when a radio is configured to be a
Master.
Set this value to 32770 when the radio is configured to be a Repeater.
In this way, if only IHs exist in the network, the Master radio will
become the root.
Hello Time The rate at which BPDUs are sent out. The industry standard is 2
seconds.
Max Age Measures the age of the received protocol information recorded for a
port and ensures that this information is discarded when its age limit
exceeds the value to the maximum age parameter recorded by the
switch. The timeout value for this timer is the maximum age parameter
of the switches.
Forward Delay Monitors the time spent by a port in the learning and listening states.
The timeout value is the forward delay parameter of the switches.
Path Costs The RSTP and STP algorithms use a cost to determine which
connections should be used. The "spanning tree" is formed by
determining the least cost paths from any RSTP device back to the
root.
Wireless To give preference to a wired connection, set the Wireless cost to 200.
Ethernet To give preference to a wired Ethernet connection, set the Ethernet
cost to 100.
You can define multiple master radios on the same network. Then, if one master
radio goes down, any radios linked to it can switch over to the other master, so
the networked radios remain connected and transmitting. In order to be
redundant, the two masters should typically be on the same segment
—in other
words, they should be wired together into the same switch. These two masters
can be assigned different channels to increase network bandwidth, but they must
be assigned the same SSID.
Also, because all radios are repeaters, you can set up each radio to be able to
reach a master radio via multiple repeater paths. Then, if a repeater goes down,
the linked radios can use a different path to get back to a master radio.