Installation Guide

Table Of Contents
Task 6: Configuring radio parameters PMP 450i and PTP 450i Configuration and User
Guide
Attribute Meaning
Multicast VC
Data Rate
This pull down menu of the Multicast Data Control screen helps in
configuring multicast packets to be transmitted over a dedicated
channel at a configurable rate of 1X, 2X, 4X or 6X. The default value
is “Disable”. If set to the default value, all multicast packets are
transmitted over the Broadcast VC data path. This feature is
available only for the PMP 450i and is not backward compatible with
PMP 430 series of radios.
Multicast Repeat
Count
This value is the number of packets that are repeated for every
multicast VC packet received on the AP (located under Radio tab of
Configuration). Multicast (like Broadcast) packets go over a VC that
is shared by all SMs, so there is no guaranteed delivery. The repeat
count is an attempt to improve the odds of the packets getting over
the link. If the user has issues with packets getting dropped, they can
use this parameter to improve the performance at the cost of the
overall throughput possible on that channel. The default value is
0
.
Multicast
Downlink CIR
This value is the committed information rate for the multicast
downlink VC (located under the Radio tab of Configuration). The
default value is
0
kbps. The range of this parameter is based on the
number of repeat counts. The higher the repeat count, the lower the
range for the multicast downlink CIR.
Control
Messages
Controls whether the control messages are sent in MIMO-B or
MIMO-A mode. MIMO-A is recommended. However, if an AP on 13.2
is attempting to connect to an SM on 13.1.3 or before, changing to
MIMO-B may aid in getting the SM registered.
PMP 430 Interop
Mode
For n-1 compatibility, In SISO mode this forces the AP to only send
Control and Beacons over one of the RF paths.
Receive Quality
Debug
To aid in link performance monitoring, the AP and SM now report the
number of fragments received per modulation (i.e. QPSK, 16-QAM,
64-QAM) and per channel (polarization).
Due to CPU load, this will slightly degrade packet per second
processing.
Dedicated Multicast Virtual Circuit (VC)
Previously, multicast packets were transmitted over the Broadcast VC. This channel ran on
the lowest modulation. By creating a new Multicast VC, we can now configure multicast
packets to be transmitted over a dedicated channel at a configurable rate of 1X, 2X, 4X or
6X. This feature is available only for the PMP 450i and is not backward compatible with
PMP 430 series of radios.
pmp-0957 (April 2015) 115