Televes Coaxdata 1Gbps-HDTV COAX+PLC 1ETH+1SFP - Manual (Page 21)

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21
This mechanism allows to safeguard the buffer system, preventing higher
priority packages run out space with lower priority waiting to be
transmitted.
It is necessary to take into account that if the thresholds for priority are
not activated, there will be a single buffer to store packets of all priorities,
so when buffer is full packets are discarded regardless of their priority. If
you want higher priority packets have a reserved space in the buffer,
enable this option.
Bandwidth Limit
The bandwidth limit can set a limit on the total transmitted/received data rate, regardless of the priority
assigned to them. This limit is activated only when operating mode is MDU. The minimum value is
64Kbps and maximum 16Mbps in increments of 64 Kbps.
 Upstream Limit: Limits the traffic transmitted by a host device, ie , from host (Ethernet) to the
coaxial.
 Downstream Limit : Limits the traffic received by the Ethernet hosts of device, ie , from the
traffic received by the coaxial towards hosts (Ethernet).
Bandwidth limit is a feature that can be used in MDU distributions where
the installer wishes to set a limit on the bandwidth used by users,
programming limit on slave modems. This option is ignored on Home
Networking mode.
Bandwidth limit overrides QoS priority. all packets are dropped if exceed
limit, regardless of its priority
Bandwidth Limit with QoS
Bandwidth Limit allows operators/installers configure CoaxDATA™ products so that users can only use
a certain bandwidth that have hired. However, this functionality can not preserve established QoS
settings for data flows, ie, limit of bandwidth is for all traffic without distinguishing the priority of the
packets.
To ensure QoS parameters are preserved even if there is bandwidth limit on devices, a new option
named
QoS For Bandwidth Limit is provided, which allows bandwidth limit setting considering QoS
for flows transmitted, thereby providing important quality of service for certain applications such as
video or voice transmission.
 limits the bandwidth used by users , considering the priority of flows, so that the limit applies
taking into account packets priority and those lower priority flows are discarded first.
 Limitation of bandwidth occurs in the internal switch of device, which provides two output
ethernet ports. Therefore
only devices that have an internal switch allow you to implement
this functionality.
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