Radwin 5000 HPMP User Manual page 349

Setting up an HSU for QoS
4. For each queue, both downlink and uplink (from the HSU) enter the required weight
and MIR. The latter may be left unlimited. in which case the system will use a "best
effort" method.
If you exceed 100% total weight, you will receive an error message.
You will be required to correct this before leaving the window other than by cancel‐
lation.
If you are under‐booked, for example by setting a queue to zero, the unused weight
will be distributed to the remaining queues. The effect of doing this will only become
apparent under congestion. In particular, a queue set to zero weight will become
nearly blocked under congestion with packets passing through on a best effort basis.
5. Using the Configurable TTL: Configurable Time‐to‐Live (TTL) is typically used for
streaming applications like manned video surveillance. A packet not transmitted
within the TTL period in a congested link is dropped. In the manned video
surveillance example, the loss of packets under congestion is less important than
acquiring the most recent packets. The choice of the TTL duration is therefore,
dependent on the tolerance of the user application to transmission "glitches".
6. When you complete your entries, click OK to save them and continue.
RADWIN 5000 HPMP User Manual Release 3.5.70 21‐4