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◆ IP Address/Hostname – The IP address or hostname of the sFlow receiver.
◆ UDP Port – The UDP port on which the sFlow receiver listens to sFlow datagrams.
The value of the port number has to be typed into the text box.
The value is within the range of 1-65535. If set to 0 (zero), the default port number is 6343.
◆ Time Out – The number of seconds remaining before sampling stops and the current
sFlow owner is released. While active, the current time left can be updated with a click on
the Refresh-button. If locally managed, the timeout can be changed on the fly without
affecting any other settings. The value can be within the range of 0-2147483647 sec. The
default is 0 sec.
◆ Max. Datagram Size – The maximum number of data bytes that can be sent in a single
sample datagram. This should be set to a value that avoids fragmentation of the sFlow
datagrams. Valid range is 200 to 1468 bytes with default being 1400 bytes.
The Port Configuration parameters are displayed as follows:
◆ sFlow Port – The port numbers for which the Flow configuration below applied.
◆ Flow Sampler Enabler – Enables/disables flow sampling on this port.
◆ Flow Sampler Sampling Rate – The statistical sampling rate for packet sampling. Set to N
to sample on average 1/Nth of the packets transmitted/received on the port.
Not all sampling rates are applicable. If an unsupported sampling rate is requested, the
switch will automatically adjust it to the closest achievable. It will be reported back in this
field.
◆ Flow Sampler Max. Header – The maximum number of bytes copied from a sampled
packet to the sFlow datagram. Valid range is 14 to 200 bytes with default being 128 bytes.
If the maximum datagram size does not take into account the maximum header size,
samples may be dropped.
◆ Counter Poller Enabled – Enables/disables counter polling on this port.
◆ Counter Poller Interval – With counter polling enabled, this specifies the interval, in
seconds, between counter poller samples.
WEB INTERFACE
To configure sFlow Receiver, and Port
1. Click Configuration, and sFlow Agent
2. Set the Receiver Owner ID, IP Address, UDP Port, Time Out, and Datagram Size values.
3. Enable the Port Number, Flow Sampler, and Counter Poller values.
4. Click Save.
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