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Reference for the Accelar 8000 Series Command Line Interface Routing Operations
8-16 208967-A
The three tables illustrate the effective throughput in megabits per second (Mb/s)
for various traffic flows using different rate limiting values. All traffic loads are at
100% of interface speed, using fixed-sized packets of the size indicated (in bytes).
Using these tables, you can determine the appropriate Average Rate Value that
will give you the metering rate you desire.
The Target Average Rate for each interface type is shown, in increments of 10%
of total interface speed, to help you determine the appropriate average-rate value
to use for that interface. The actual throughput rate typically differs slightly from
the target rate as illustrated.
For example, to configure a traffic profile with an average rate limit of 50% of a
100 Mb/s interface (or 50 Mb/s), enter 250 in the
average-rate field in the CLI.
Traffic is then limited to 51.23 Mb/s to 53.47 Mb/s, depending on the size of the
packets
.
Table8-1. 10MbEthernetLineRateMetering
average-rate <int>
5 101520253035404550
Packet
size in
bytes
10%*
* target average percentage of line rate
20% 30% 40% 50% 60% 70% 80% 90% 100%
64 1.03†
† rate in megabits per second
2.05 3.08 4.10 5.12 6.15 7.17 7.62 7.62 7.62
128 1.23 2.05 3.28 4.10 5.33 6.15 7.38 8.20 8.65 8.65
256 1.64 2.46 3.28 4.10 5.74 6.56 7.38 8.19 9.28 9.28
512 1.64 3.28 3.28 4.92 6.56 6.56 8.20 8.20 9.62 9.62
1024 3.28 3.28 3.28 6.56 6.56 6.56 9.81 9.81 9.81 9.81
1518 4.86 4.86 4.86 4.86 9.72 9.72 9.72 9.72 9.72 9.87
cli.book Page16 Wednesday, April 19,2000 3:14 PM