4RF Aprisa SR+, Руководство пользователя

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Managing the Radio | 205
Aprisa SR+ User Manual 1.11.1
QoS > Traffic Priority
TRAFFIC PRIORITY
Default Management Data Priority
The Default Management Data Priority controls the priority of the Ethernet management traffic relative to
Ethernet customer traffic. It can be set to Very High, High, Medium and Low. The default setting is Medium.
This priority is also used for traffic if the remote serial port is not available for the radio hardware data port
option e.g. if the base station is 2E2S and a remote radio is 4E0S.
SERIAL PRIORITY
This parameter controls the per port priority of the serial customer traffic relative to the Ethernet customer
traffic. If equal priority is required to Ethernet traffic, this setting must be the same as the Ethernet Data
Priority setting.
The serial data priority can be set to Very High, High, Medium and Low. The default setting is Low.
A queuing system is used to prioritize traffic from the serial and Ethernet interfaces for over the air
transmission. A weighting may be given to each data type and this is used to schedule the next transmission
over the air e.g. if there are pending data packets in multiple buffers but serial data has a higher weighting
it will be transmitted first. The serial buffer is 20 serial packets (1 packet can be up to 512 bytes).
There are four priority queues in the Aprisa SR: Very High, High, Medium and Low. Data is added to one of
these queues depending on the priority setting. Data leaves the queues from highest priority to lowest: the
Very High queue is emptied first, followed by High then Medium and finally Low.