Intermec MobileLAN access WA21 System Manual page 153

MobileLAN access System Manual
Global RF Parameter Descriptions
Parameter Explanation
Perform Determines how the access point will handle the conversion of
RFC1042/DIX RFC1042/DIX frames that are received on its 802.11b or
Conversion 802.11a ports.
(802.11b or 802.11
Check this check box if the frames that are received and have a
radios only)
protocol type equal to a value in the "RFC1042 types to pass
through" list are forwarded without conversion. If the frame has
a protocol types that is not found in the list, it will be converted
to DIX format before it is forwarded.
Clear this check box if the frames that are received are forwarded
without conversion; that is, when a SNAP frame is received from
an 802.11b or 802.11a radio with an OUI (Organizationally
Unique Identifier) equal to 000000, it will be forwarded without
conversion.
S-UHF Rfp Specifies the largest data frame that can be transmitted without
Threshold reserving air time. Air time is normally reserved to help prevent
(S-UHF radios only) collisions with other transmitters; however, when the amount of
data is small enough, sending the data may be more effective
than creating the reservation.
S-UHF Frag Size Specifies the largest data frame that can be transmitted without
(S-UHF radios only) fragmentation. On certain radios, fragmentation does not occur
unless the radio detects interference. Larger frame sizes can
improve throughput on a reliable connection, while smaller
frame sizes can improve throughput on a poor connection.
902 MHz Frag Size Specifies the largest data frame that can be transmitted without
(902 MHz radios fragmentation. On certain radios, fragmentation does not occur
only) unless the radio detects interference. Larger frame sizes can
improve throughput on a reliable connection, while smaller
frame sizes can improve throughput on a poor connection.
S-UHF/902 MHz Specifies the amount of time that a wireless end device stays
Awake Time awake when radios are inactive. A sleeping device is less
(S-UHF and 902 responsive to radio activity; however, the longer a device is kept
MHz radios only)
fully awake, the larger the drain on the battery. You should set a
device to stay awake long enough to receive an expected reply to
a transmission and short enough to reduce power consumption.
The awake time can be set to a number from 0 to 250 tenths of a
second.
RFC1042 Types to If the RFC1042/DIX Conversion field is Enabled, this
Pass Through parameter specifies values for protocol types that are to be passed
(802.11b or 802.11a without conversion. The list includes the Apple Talk protocol
radios only) type, value 80F3.
Values entered in this parameter represent the protocol types of
frames that will be passed without conversion to DIX format.
Chapter 5 — Configuring the Spanning Tree
139