EDS-510A Series User’s Manual Featured Functions
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Traffic Queues
The EDS-510A hardware has multiple traffic queues that allow packet prioritization to occur.
Higher priority traffic can pass through the EDS-510A without being delayed by lower priority
traffic. As each packet arrives in the EDS-510A, it passes through any ingress processing (which
includes classification, marking/re-marking), and is then sorted into the appropriate queue. The
switch then forwards packets from each queue.
EDS-510A supports two different queuing mechanisms:
Weight Fair: This method services all the traffic queues, giving priority to the higher priority
queues. Under most circumstances, this method gives high priority precedence over
low-priority, but in the event that high-priority traffic exceeds the link capacity, lower priority
traffic is not blocked.
Strict: This method services high traffic queues first; low priority queues are delayed until no
more high priority data needs to be sent. This method always gives precedence to high priority
over low-priority.
Configuring Traffic Prioritization
Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is
delivered consistently and predictably. EDS-510A Series can inspect IEEE 802.1p/1Q layer 2 CoS
tags, and even layer 3 TOS information, to provide a consistent classification of the entire network.
EDS-510A Series’ QoS capability improves your industrial network’s performance and
determinism for mission critical applications.
QoS Classification
Moxa EDS-510A supports inspection of layer 3 TOS and/or layer 2 CoS tag information to
determine how to classify traffic packets.
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