Configure Sflow Max-Cpu-Sample-Limit - Extreme Networks ExtremeWare XOS Command Reference Manual

Commands for Status Monitoring and Statistics

configure sflow max-cpu-sample-limit

configure sflow max-cpu-sample-limit <rate>
Description
Configures the maximum number of sFlow samples handled by the CPU per second.
Syntax Description
rate Specifies the maximum sFlow samples per second.
Default
The default value is 2000 samples per second.
Usage Guidelines
This command configures the maximum number of samples sent to the CPU per second. If this rate is
exceeded, the internal sFlow CPU throttling mechanism kicks in to limit the load on the CPU. Every
time the limit is reached, the sample rate is halved (the value of in the
number configure sflow
or command
sample-rate <number> configure sflow ports <portlist> sample-rate <number>
is doubled), on the slot on which maximum number of packets were received during the last snapshot.
This effectively halves the sampling frequency of all the ports on that slot with a sub-sampling factor of
1. The sampling frequency of ports on that slot with a sub-sampling factor greater than 1 will not
change; the sub-sampling factor is also halved so the that the same rate of samples are sent from that
port.
The maximum CPU sample rate is based on the total number of samples received from all the sources.
The valid range is 100 to 5000 samples per second.
Example
The following command specifies that the sFlow maximum CPU sample rate should be set to 4000
samples per second:
configure sflow max-cpu-sample-limit 4000
History
This command was first available in ExtremeWare XOS 11.0.
Platform Availability
This command is available on all platforms.
486
ExtremeWare XOS 11.3 Command Reference