Silvus StreamCaster MIMO - Page 32

StreamCaster MIMO Radio User Manual 3/17/15
10017C000 Silvus Technologies Confidential Page
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 Burst Time: The burst time determines the maximum amount of time each node is
allowed to transmit at once. A larger burst time will provide higher throughput at the cost
of higher latency. On the other hand, a smaller burst time will provide less latency at the
cost of less throughput. The throughput values shown in Table 10 and Table 12 assume
the minimum burst time.
 RTS Retries: A node wishing to send data initiates the process by sending a request to
send message (RTS). The destination node replies with a clear to send (CTS) message.
Any other node that receives the RTS or CTS message will refrain from sending data for
a given time. In larger networks, there is a higher probability of collisions occurring when
an RTS is sent out. This field defines the number of retries before a packet is dropped. A
lower value will result in faster handoffs in mobile situations.
 MCS: Choose the modulation and coding scheme (MCS). If this is set as AUTO, the
radio will dynamically cycle between a subset of the modes depending on the quality of
the link. This is the recommended setting for most users and will provide the maximum
data rate that the link can support. The EXTENDED AUTO mode includes 64QAM rate
modes on top of those included in the AUTO mode. Table 10 and Table 12 below show
the estimated UDP data rate and sensitivity for each MCS. This table assumes a 20MHz
bandwidth, 1000 meter link distance and 1600 byte fragmentation threshold.
 Transmit Channels: Allows user to Enable or Disable each channel on the radio for TX.
 Receiver Channels: Allows user to Enable or Disable each channel on the radio for RX.
 Radio Mode: Switch between Network mode and PHY Diagnostics. If the value equals
0, it is in Network mode; if the value equals 1, it is in PHY Diagnostics. PHY Diagnostics
mode is only relevant for users who wish to run diagnostic tests on the radio.
 Apply: Applies the new values but does not save them to flash.
 Save and Apply: Save the new values to flash and apply.
Network Settings:
 Virtual IP: Enable or Disable the Secondary IP address for the radio.
 Virtual IP Address: Secondary IP address for the radio. The user may set this to be on
the user’s IP network, e.g., 192.168.2.10. Once this secondary IP address is set, the user
may access the radio web page using either the native IP address or the secondary IP
address. Please note that the secondary IP address should NOT be on the 172.20.xx.xx
subnet.
 Virtual Netmask: Netmask for the Secondary IP address, e.g. 255.255.255.0.