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For delay and jitter measurements, the first bin starts at 0, each bin covers a range of values defined by the
specified width, except for the last bin which ends at infinity. For example, an aggregate bin count of 4 and
a width of 20 for delay measurements yields 4 bins of statistics for these sample ranges:
•
Bin 1
—
Samples with delay ranges 0 to < 20 ms.
•
Bin 2
—
Samples with delay ranges greater than or equal to 20 and < 40 ms.
•
Bin 3
—
Samples with delay ranges greater than or equal to 40 and < 60 ms.
•
Bin 4
—
Samples with delay ranges 60 ms or greater (unbounded).
For synthetic loss measurements, the first bin starts at 0, each bin covers a range of values defined by the
specified width, except for the last bin which ends at infinity. For example, an aggregate bin count of 4 and
a width of 25 for loss measurements yields 4 bins of statistics for these sample ranges:
•
Bin 1
—
Samples with loss ranges 0 to < 25 percentage points.
•
Bin 2
—
Samples with loss ranges greater than or equal to 25 and < 50 percentage points.
•
Bin 3
—
Samples with loss ranges greater than or equal to 50 and < 75 percentage points.
•
Bin 4
—
Samples with loss ranges greater than or equal to 75 and <100 percentage points.
For delay and jitter measurements (round-trip or one-way), the lower bound of the first bin is zero, and
the last bin is effectively of infinite width. If aggregation is disabled, each individual delay value is stored.
For loss measurements, the lower bound of the first bin is zero, and the upper bound of the last bin is 100.
The last bin may be wider than the other bins. If aggregation is disabled, each calculated FLR value is
stored.
Note
The lower bound of each bin is inclusive, while the upper bound is exclusive. Changing the aggregation
for a given metric clears all stored data for that metric.
Note
Task ID
Operations
Task ID
read, write
ethernet-services
Examples
This example shows how to configure round-trip-delay statistics measurement in 4 bins each with a range of
20 milliseconds:
RP/0/RSP0/CPU0:router#
configure
RP/0/RSP0/CPU0:router(config)#
ethernet sla
RP/0/RSP0/CPU0:router(config-sla)#
profile Prof1 type cfm-loopback
RP/0/RSP0/CPU0:router(config-sla-prof)#
statistics measure round-trip-delay
RP/0/RSP0/CPU0:router(config-sla-prof-stat-cfg)#
aggregate bins 4 width 20
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
156
Ethernet OAM Commands on the Cisco ASR 9000 Series Router
aggregate