User Manual

Monitor the System
645
M4200 and M4300 Series ProSAFE Managed Switches Web Management User Manual
The sFlow Agent uses two forms of sampling: statistical packet-based sampling of switched
or routed Packet Flows, and time-based sampling of counters.
sFlow Agent Summary
Packet Flow Sampling and Counter Sampling are performed by sFlow Instances associated
with individual Data Sources within the sFlow Agent. Packet Flow Sampling and Counter
Sampling are designed as part of an integrated system. Both types of samples are combined
in sFlow datagrams. Packet Flow Sampling will cause a steady, but random, stream of sFlow
datagrams to be sent to the sFlow Collector. Counter samples may be taken opportunistically
in order to fill these datagrams.
In order to perform Packet Flow Sampling, an sFlow Sampler Instance is configured with a
Sampling Rate. The Packet Flow sampling process results in the generation of Packet Flow
Records. In order to perform Counter Sampling, the sFlow Poller Instance is configured with
a Polling Interval, The Counter Sampling process results in the generation of Counter
Records. The sFlow Agent collects Counter Records and Packet Flow Records and sends
them in the form of sFlow datagrams to sFlow Collectors.
You can configure basic or advanced sFlow settings.
Configure Basic sFlow Agent Information
 To configure basic sFlow agent information:
1. Launch a web browser.
2. Enter http://<ipaddress> in the web browser address field.
The login window opens.
3. Enter the user name and password.
The default admin user name is admin and the default admin password is blank, that is,
do not enter a password.
4. Click the Login button.
The System Information page displays.
5. Select Monitoring> sFlow > Basic > sFlow Agent Information.