Tcp/Ip And Other Sla Considerations; Figure 10-25 Example 3: Half - Radwin 5000 HPMP User Manual

TCP/IP and other SLA Considerations
Figure 10‐25: Example 3: Half the uplink time slots reserved at 40 MHz CBW
At 40 MHz channel bandwidth, the sector utilization is around 70% in the uplink direction and
abbot 26% in the uplink direction. The percentage sector utilization has dropped dramatically
for the same traffic load.
TCP/IP and other SLA Considerations
The foregoing example were all based on UDP traffic. If the sector traffic has a heavy TCP/IP
content (including dependent protocols such as HTTP/HTTPS) you must allow sufficient time
slots particularly in the uplink direction to ensure the that TCP/IP ACK messages are
transmitted without delay. Some theoretical calculations are possible, but ultimately you will
need to use a hardware traffic generator to assist your time slot allocation. This is particularly
critical if you are operating a sector with SLA.
The same holds true if you are offering a backhaul service with SLA regardless of the traffic
packet composition.
RADWIN 5000 HPMP User Manual Release 3.5.70 10‐22