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Dell SmartFabric OS10 User Guide Release 10.5.3

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Enable sFlow®

You can enable sFlow® either on all interfaces globally or on a specific set of interfaces. The system displays an error message if you try to enable sFlow® on both modes at one time.

If you configure sFlow® only on a set of interfaces, any further change to the sFlow®-enabled ports triggers the sFlow® agent to restart. This results in a gap in the polling counter statistics of 30 seconds and the sFlow® counters are reset on all sFlow®-enabled ports.

When you enable sFlow® on a port-channel:
  • When in Per-Interface mode, the counter statistics of sFlow®-enabled ports reset to zero when you add a new member port or remove an existing member port from any sFlow® enabled port-channel group.
  • sFlow® counter statistics that are individually reported for the port members of a port-channel data source are accurate. Counter statistics reported for the port-channel may not be accurate. To calculate the correct counters for a port-channel data source, add together the counter statistics of the individual port members.

Enable or disable sFlow® globally

sFlow® is disabled globally by default.

  • Enable sFlow® globally on all interfaces in CONFIGURATION mode.
    sflow enable all-interfaces
  • Disable sFlow® in CONFIGURATION mode.
    no sflow

Enable or disable sFlow® on a specific interface

  • Enable sFlow® in CONFIGURATION mode.
    sflow enable
  • Disable sFlow® in CONFIGURATION mode.
    no sflow enable
Enable sFlow® on a specific interface
OS10(config)# sflow enable
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# sflow enable
Enable sFlow® on a range of interfaces
OS10(config)# sflow enable 
OS10(config)# interface range ethernet 1/1/1-1/1/10
OS10(conf-range-eth1/1/1-1/1/10)# sflow enable
Enable sFlow® on a port-channel
OS10(config)# sflow enable 
OS10(config)# interface range port-channel 1-10
OS10(conf-range-po-1-10)# sflow enable

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