OS10 Enterprise Edition User Guide Release 10.4.1.0

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Sample-rate configuration

Sampling rate is the number of packets skipped before the sample is taken. If the sampling rate is 4096, one sample generates for every 4096 packets observed.

  • Set the sampling rate in CONFIGURATION mode, from 4096 to 65535. The default is 32768.
    sflow sample-rate 
                                        sampling-size
                                     
  • Disable packet sampling in CONFIGURATION mode.
    no sflow sample-rate
  • View the sampling rate in EXEC mode.
    show sflow
Configure sFlow sampling rate
OS10(config)# sflow sample-rate 4096
View sFlow packet header size
OS10# show sflow
                                 sFlow services are enabled
                                 Management Interface sFlow services are disabled
                                 Global default sampling rate: 4096
                                 Global default counter polling interval: 20
                                 Global default extended maximum header size: 128 bytes
                                 Global extended information enabled: none
                                 1 collector(s) configured
                                 Collector IP addr:10.16.151.245 Agent IP addr:10.16.132.181 UDP port:6343 VRF:Default
                                 31722 UDP packets exported
                                 0 UDP packets dropped
                                 34026 sFlow samples collected
                              
View sFlow running configuration
OS10# show running-configuration sflow
                                 sflow enable
                                 sflow max-header-size 80
                                 sflow polling-interval 20
                                 sflow sample-rate 4096
                                 sflow collector 10.16.150.1 agent-addr 10.16.132.67 6767 max-datagram-size 800
                                 sflow collector 10.16.153.176 agent-addr 3.3.3.3 6666
                                 !
                                 interface ethernet1/1/1
                                 sflow enable
                                 !
                              

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