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1442 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Configuring a utilization list for an uplink port
A
Clearing sFlow statistics
To clear the UDP packet and sFlow sample counters in the show sflow display, enter the following
command.
PowerConnect#clear statistics
Syntax: clear statistics
This command clears the values in the following fields of the show sflow display:
• UDP packets exported
• sFlow samples collected
NOTE
This command also clears the statistics counters used by other features.
Configuring a utilization list for an uplink port
You can configure uplink utilization lists that display the percentage of a given uplink port
bandwidth that is used by a specific list of downlink ports. The percentages are based on
30-second intervals of RMON packet statistics for the ports. Both transmit and receive traffic is
counted in each percentage.
NOTE
This feature is intended for ISP or collocation environments in which downlink ports are dedicated
to various customers’ traffic and are isolated from one another. If traffic regularly passes between
the downlink ports, the information displayed by the utilization lists does not provide a clear
depiction of traffic exchanged by the downlink ports and the uplink port.
Each uplink utilization list consists of the following:
• Utilization list number (1, 2, 3, or 4)
exporting system-info polling interval Specifies the interval, in seconds, that sFlow data is sent to the sFlow
collector.
UDP packets exported The number of sFlow export packets the Dell PowerConnect device has
sent.
NOTE: Each UDP packet can contain multiple samples.
sFlow samples collected The number of sampled packets that have been sent to the collectors.
sFlow ports The ports on which you enabled sFlow.
Module Sampling Rates The configured and actual sampling rates for each module. If a module
does not have any sFlow-enabled ports, the rates are listed as 0.
Port Sampling Rates The configured and actual sampling rates for each sFlow-enabled port.
The Subsampling factor indicates how many times the sampling rate of
the port's module is multiplied to achieve the port's sampling rate.
Because of the way the actual sampling rates are computed, the
Subsampling factors are always whole numbers.
TABLE 244 sFlow information (Continued)
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