Switch Management Commands 2083Command ModeInterface Configuration (Ethernet) modeUser GuidelinesLower sampling numbers cause more samples to be collected and increase theload on the CPU. Setting a sampling rate of 1024 on a large number of portsmay tax the CPU beyond it's ability to deliver the packets to the receiver.Lowering the sampling rate (higher numerical value) will help to ensure thatall collected samples can be sent to the receiver.Exampleconsole(config-if-Gi1/0/15)#sflow 1 sampling 1500 50sflow source-interfaceUse the sflow source-interface command to select the interface from whichto use the IP address inserted in the source IP address field of transmittedsFlow packets. Use the no form of the command to revert to the default IPaddress.Syntaxsflow source-interface {loopback loopback-id | vlan vlan-id | out-of-band |tunnel tunnel-id}no sflow source-interface• loopback-id — A loopback interface identifier.• vlan-id — A VLAN identifier.• tunnel-id — A tunnel identifier (Range 0–7).• out-of-band — The out-of-band interface.Default ConfigurationBy default, the switch uses the assigned switch IP address as the source IPaddress for sFlow packets. This is either the IP address assigned to the VLANfrom which the sFlow packet originates or the out-of-band interface IPaddress.
