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Configuring counter sampling, Displaying and maintaining sflow – H3C Technologies H3C S6300 Series Switches User Manual

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Step Command

Remarks

3.

(Optional.) Set the flow
sampling mode.

sflow sampling-mode { determine
| random }

The default setting is random.
The determine keyword is not

supported in the current software
version. It is reserved for future

support.

4.

Enable flow sampling and
specify the number of packets

out of which flow sampling

samples a packet on the

interface.

sflow sampling-rate rate

By default, no flow sampling rate is
configured.

5.

(Optional.) Set the maximum
number of bytes (starting from

the packet header) that flow
sampling can copy per

packet.

sflow flow max-header length

The default setting is 128 bytes.
H3C recommends the default.

6.

Specify the sFlow collector for

flow sampling.

sflow flow collector collector-id

By default, no sFlow collector is
specified for flow sampling.

Configuring counter sampling

Perform this task to configure counter sampling on an Ethernet interface. The sFlow agent does the

following:

Periodically collects the counter information on that interface.

Encapsulates the information into sFlow packets.

Sends them in UDP packets to the specified sFlow collector.

To configure counter sampling:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter Layer 2 Ethernet
interface view.

interface interface-type
interface-number

N/A

3.

Enable counter sampling and

set the counter sampling
interval.

sflow counter interval interval-time

By default, counter sampling is
disabled.

4.

Specify the sFlow collector for
counter sampling.

sflow counter collector collector-id

By default, no sFlow collector is
specified for counter sampling.

Displaying and maintaining sFlow

Execute display commands in any view.

Task Command

Display sFlow configuration.

display sflow