Table 74: sFlow Receiver Configuration Fields
Field
Description
Index
Selects the receiver for which data is to be displayed or configured. The allowed range is 1
to 8.
Owner String
The entity making use of this sFlowRcvrTable entry. The empty string indicates that the
entry is currently unclaimed and the receiver configuration is reset to the default values. An
entity wishing to claim an sFlowRcvrTable entry must ensure that the entry is unclaimed
before trying to claim it. The entry is claimed by setting the owner string. The entry must
be claimed before any changes can be made to other sampler objects.
Time Remaining
The time (in seconds) remaining before the sampler is released and stops sampling. A
value of 0 essentially means the receiver is not configured. When configuring the sFlow
receiver settings, you must select the Timeout Mode option before you can configure a
Timeout Value.
Maximum Datagram
Size
The maximum number of data bytes that can be sent in a single sample datagram. The
manager should set this value to avoid fragmentation of the sFlow datagrams. The default
value is 1400. The allowed range is 200 to 9116.
Address
The IP address of the sFlow collector. If set to 0.0.0.0 no sFlow datagrams will be sent.
Port
The destination port for sFlow datagrams. The allowed range is 1 to 65535.
Datagram Version
The version of sFlow datagrams that should be sent.
Monitor Session
Monitor session to enable sFlow hardware feature.
Use the
Submit
button to sent updated data to the switch and cause the changes to take effect on the
switch.
Use the
Refresh
button to refresh the page with the most current data from the switch.
Use the
Edit
button to configure the monitor session for a specific receiver (only for IPv4). After
successful configuration, the sFlow packet processing will be done in hardware.
Use the
Submit
button to sent updated data to the switch and cause the changes to take effect on the
switch.
sFlow Poller Configuration
The sFlow agent collects time-based sampling of network interface statistics and sends them to the
configured sFlow receivers. A data source configured to collect counter samples is called a poller.
Counter Sampling
The primary objective of Counter Sampling is to efficiently, periodically export counters associated with
Data Sources. A maximum Sampling Interval is assigned to each sFlow instance associated with a Data
Source.
Counter Sampling is accomplished as follows:
The sFlow Agent keeps a list of counter sources being sampled. When a Packet Flow Sample is
generated, the sFlow Agent examines the list and adds counters to the sample datagram, least recently
sampled first. Counters are added to the datagram only when the sources are within five seconds of
Configuring System Information
ExtremeSwitching 200 Series: Administration Guide
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