Configuration MP.11-R Installation and Management
Interface Parameters
82
– No Multi-Frame Burst Support –To disable Multi-Frame burst support, click Configure > Network > Roaming,
and select “Disable” on the drop-down box (see BSU Roaming Configuration). In this case, each active SFC is
limited to send a single data message. Total throughput available to the remaining best effort traffic is around 76%
of the maximum available throughput.
– Multi-Frame Burst Support – The system will enable Multi-Frame burst for all SFCs, but the maximum number of
data messages sent in a burst will be defined by the parameter “Number of data messages in a burst” for each of
the SFCs (see Service Flow Class (SFC)). This scenario is set by clicking Configure > Network > Roaming and
enabling Multi-Frame burst on the drop-down box (see BSU Roaming Configuration), and disabling Automatic
Multi-Frame Bursting (this parameter).
The maximum number of data messages in a burst directly influences the total throughput of the system. Typical
values are:
– Automatic Multi-Frame Burst Support – The system will continuously monitor which of the active SFCs has the
highest priority and dynamically enable Multi-Frame burst for the highest priority SFC only, keeping all the lower
priority SFCs with Multi-Frame burst disabled. If there are multiple SFCs having the same, highest priority, all of
them will have Multi-Frame burst enabled. The maximum number of data messages sent in a burst is defined by
the parameter “Number of data messages in a burst” and it can be different for each SFC (see Service Flow Class
(SFC)). This scenario is set by clicking Configure > Network > Roaming and enabling Multi-Frame burst on the
drop-down box (see BSU Roaming Configuration), and enabling Automatic Multi-Frame Bursting (this
parameter). In this case, even the lowest priority SFC will have Multi-Frame burst dynamically enabled as long as
it is the only SFC in the system that has traffic. By default, configuring even a single high priority SFC with
automatic multi-frame bursting enabled will decrease throughput of low priority best-effort traffic to approximately
76% of maximum available throughput, because low priority traffic will have Multi-Frame burst disabled to optimize
bandwidth for the high priority traffic.
• Registration Timeout: This is the registration process time-out of an SU on a BSU. Default is 5 seconds.
• Max Retries: This parameter specifies the maximum number of times a data message is retransmitted, over the
wireless medium, if acknowledgement is not received. By default, it is set to 3.
• WORP MTU: WORP MTU (Maximum Transfer Unit) is the largest size of the data payload in wireless frame that may
be transmitted. The MTU size can range from 350 to 2304. The default and maximum value of the WORP MTU is
2304.
• Super Packeting: Super Packeting refers to the mechanism that enables multiple Ethernet/802.3 frames to be
packed in a single WORP data frame. When the WORP MTU size is configured larger than the Ethernet frame size,
then WORP constructs a super frame with size of the WORP MTU configured and pack multiple Ethernet frames. It
results in reducing the number of frames transmitted over wireless medium thereby conserving wireless medium and
increasing the overall throughput.
• Bandwidth Limit Type: This parameter specifies the action performed when the traffic utilization exceeds the
configured input/output limits.
Policing: When the traffic utilization reaches the configured limit, the excess traffic will be discarded.
Shaping: When the traffic utilization reaches the configured limit, the excess traffic will be buffered and sent at the
rate specified in the Output Bandwidth Limit.
• Rx Inactivity Timeout: This is the activity time-out of an SU on a BSU. If no traffic is received on the WORP/Ethernet
interface in the configured time, the unit will reboot. The range is 5 minutes to 600 minutes. This functionality is
applicable for both wireless and ethernet interfaces.
No. of messages in a burst: % of the maximum throughput:
4100%
3 97.6%
2 92.9%
1 76.2%
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