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030-300381 Rev. A 129 January 2004
UltraLine Home DSL Router (Models 7400, 7401)
User Guide
Max Queue Size The maximum number of packets that can be queued for this priority.
Total Dropped Packets Indicates how many packets of this priority have been dropped by QOS due to
lack of buffer space or filtering rules.
Total Enqueued Packets Displays the number of packets, destined for the WAN, that have been
received.
Current Depth Displays the current number of packets of this priority that are queued.
Deepest Depth Displays the most number of packets that have been queued at once for this
priority.
QOS Filter Statistics
Queue Number The DiffServ Queue. (See Queue Number description above.)
Peak Info. Rate (%) The maximum allowed rate for this priority, expressed as a percentage of the
DSL rate.
Committed Info Rate (%) The committed rate for this priority, expressed as a percentage of the DSL rate
Peak Burst (ms) Displays the interval in milliseconds for averaging the peak offered rate.
Committed Burst (ms) Displays the interval in milliseconds for averaging the committed offered rate.
Total Packets Received Displays the total number of packets of this priority that are destined for the
LAN.
Total Marked Packets Displays the number of packets of this priority that exceeded the committed
rate, but not the peak rate, and were marked with a higher drop priority
Total Filter Packet Drops Displays the number of packets of this priority that exceeded the peak rate and
that were, therefore, dropped.
Avg. DSL Bytes Per Packet Displays the average size of packets for this priority, including all overhead.
Avg. Packet Rate Per second Displays the average rate (in packets per seconds) for this priority.
QOS Latency Counts
Queue Number The DiffServ Queue. (See Queue Number description above.)
Not Time Stamped The packets with no incoming time stamp. (Often these are generated internal
to the Router.)
A ms to B ms The number of packets of this priority whose time in the Router fell between A
and B milliseconds. (Time is measured from the point the packet arrives at the
Router’s processor until is passed to the ATM hardware for transmission.)
Possible ranges are (A ms to B ms):
0 ms to 10 ms
10 ms to 20 ms
20 ms to 40 ms
40 ms to 100 ms
100 ms to 1000 ms
1000 ms to 3000 ms
Larger than 3000 ms