Prioritization Transmit Queue Length; Prioritization Statistics; Figure 162: Prioritization Statistics - RuggedCom RuggedRouter RX1000 User Manual

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RuggedRouter User Guide

Prioritization Transmit Queue Length

The WAN protocols supplied by the RuggedRouter rely upon transmit queues to
ensure their efficiency. Even as a packet is starting to be transmitted, other packets
can be lining up behind it. Normally there is only one queue, the transmit queue, and
packets are transmitted from it in the order in which they arrived.
The transmit queue is a means of enhancing performance.
Prioritization favors some packets over others by transmitting them with preference.
Prioritization works by establishing queues at the required priority levels filling the
transmit queue with them in priority order. The aim of establishing low latency for
certain traffic is foiled when transmit queue lengths are large because multiple low
priority packets may have queued before a high priority packet arrives at the router.
RuggedCom recommends that the transmit queue length be left at its minimum
default value of 1. Higher values, however, may strike a balance between latency an
performance.

Prioritization Statistics

Figure 162: Prioritization Statistics

This menu displays the percentage of interface traffic that has been transmitted from
each priority queue. The Refresh button causes the statistics to be updated. The
Clear Statistics And Refresh button causes the statistics to be cleared and then
captured after a one second interval.
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