Proxim Wireless Corporation XB92WFR ユーザーズマニュアル
Monitor
Tsunami
®
800 & 8000 Series - Software Management Guide
252
Figure 7-42 sFlow Sampling Configuration
2. 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.
3. 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.
4. 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. The default size is 128 bytes. The
header size can range from 20 to 256 bytes.
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. The default size is 128 bytes. The
header size can range from 20 to 256 bytes.
5. Next, click Apply to start packet flow sampling. Once it starts, the Time Out parameter (see
) keeps decrementing till it reaches a zero value. On reaching zero, the corresponding Receiver and
Sampling values are set to default values.
:
•
Enabling sFlow packet sampling effects the system performance, and hence care must be taken when choosing the
right value for Packet Sampling Rate and Maximum Header Size.
right value for Packet Sampling Rate and Maximum Header Size.
•
Receiver Index for packet Sampling table and Counter Polling table should be same for each Ethernet interface.
7.11.3.3 Counter Polling Configuration
To configure and start Counter Polling sampling, do the following:
1. Navigate to MONITOR > Tools > sFlow and select Counter Polling Configuration tab.