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sFlow Receiver Configuration
The Receiver Configuration page allows you to configure sFlow Receiver(s), which receives samples from all agents on the
network, combines and analyzes the samples to produce a report of network activity.
To configure sFlow Receiver do the following:
•
Index: Represents the Receiver index number. Please note that the number of indexes depends on the Ethernet
interfaces your device supports.
•
Owner: Enter a string, which uniquely identifies the sFlow Receiver.
•
Timeout: The sFlow Agent sends sampled packets to the specified sFlow Receiver till it reaches zero. At zero, all the
Receiver parameters are set to default values.
•
Max Datagram Size: Enter the maximum size of a sFlow datagram (in bytes), which the Receiver can receive, in the
Max Datagram Size box.
•
Address Type: The address type supported by sFlow Receiver is ipv4, which is by default selected.
: Currently it supports only IPv4.
•
Receiver Address: Enter the sFlow Receiver's IP address in the Receiver Address box.
•
Receiver Port: By default, the sFlow Receiver listens to the sFlow datagrams on 6343 port.
•
Datagram Version: The sFlow datagram version used is 5.
Click Apply, to save the sFlow Receiver configuration parameters.
Once the Receiver configurations are done, either Packet Flow sampling or Counter Polling Sampling or both can be started.
:
• Enabling sampling effects the system performance and hence care should be taken in setting the right values for
Timeout and Max Datagram Size.
• When the Owner string is cleared, the Flow Sampling and Counter Polling stops.
Sampling Configuration
To configure and start packet flow sampling, do the following:
1. From the Receiver Index drop-down box, select the receiver index number associated with the sFlow Receiver to
which the sFlow Agent should send the sFlow Datagrams.
: If device has two Ethernet interfaces, then configure different Receiver indexes for each of the interface.
2. Type a value in the Packet Sampling Rate box. This value determines the number of packets the sFlow Agent
samples from the total number of packets passing through the Ethernet interface of the device.
3. Type a value in the Maximum Header Size box, to set the amount of data (in bytes) to be included in the sFlow
datagram. The sFlow Agent samples the specified number of bytes. For example, if you set the Maximum Header Size
to 100, the sFlow Agent places the first 100 bytes of every sampled frame in the datagram. The value should match
the size of the frame and packet header so that the entire header is forwarded.
4. Next, click Apply to start packet flow sampling. Once it starts, the Timeout parameter in
Configuration
Sampling values are set to default values.
Device Management Guide
keeps decrementing till it reaches a zero value. On reaching zero, the corresponding Receiver and
Tools
sFlow Receiver
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