Guidelines to Remember When Configuring sFlow
There are some guidelines to consider when configuring the sFlow monitoring feature:
- sFlow is a scope local feature.
- You can configure the sFlow sampling rate (sample-rate) in the range 256-16000. By default the sampling rate is set to 4096. To disable sFlow traffic sampling, configure the sampling rate to zero (0) .
- The sFlow Agent ID is typically the switch’s management IP address and indicates the originator of the sample frames.
- The sFlow monitoring system supports only IPv4 sampling.
- The sFlow sample type can be either raw or cooked mode, and the default is raw.
- By default, the counter-polling-interval is 2 seconds and the available range is 1-120 seconds. To disable counter sampling, you can set the interval to zero (0).
- The sample-pkt-cnt command output and option is the total number of sampled packets from the sFlow Agent.
- The sFlow Collector configuration requires the Collector’s IP address and port number.
- The sFlow Collector configuration can be scope local or scope fabric.
- You can configure multiple sFlow Collectors: the first or the latest available Collector is selected to send the sampled packets to.
- Egress sFlow samplers do not capture modifications to the packets in the egress pipeline (for example, VLAN translation or VXLAN header encapsulation).