D-Link xStack DGS-3600 Series User Manual - Sflow Poller Settings

xStack DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch 

The following fields may be set: 

Parameter                    Description 

From  

Choose the beginning port of the range of ports to be configured for packet sampling. 

To  

Choose the ending port of the range of ports to be configured for packet sampling. 

Analyzer Server ID 

(1-4) 

Enter the previously configured Analyzer Server ID to state the device that will be receiving 

datagrams from the Switch. These datagrams will include the sample packet information taken 

using the sampling mechanism configured here. 

Rate (0-65535) 

Users can set the rate of packet sampling here. The value entered here is to be multiplied by 

256 to get the percentage of packets sampled. For example, if the user enters a figure of 20 

into this field, the switch will sample one out of every 5120 packets (20 x 256 = 5120) that pass 

through the individual port. Users may enter a value between 

1

 and 

65535

. An entry of 

0

disables the packet sampling. Since this is the default setting, users are reminded to configure 

a rate here, otherwise this function will not function. 

Max Header Size 

(18-256) 

This field will set the number of leading bytes of the sampled packet header. This sampled 

header will be encapsulated with the datagram to be forwarded to the Analyzer Server. The 

user may set a value between 

18

 and 

256

 bytes. The default setting is 

128

 bytes. 

Click 

Apply

 to save changes made. 

sFlow Poller Settings 

The following windows will allow the user to configure the settings for the Switch’s counter poller. This mechanism will take a 

poll of the IF counters of the Switch and then package them with the other previously mentioned data into a datagram which will 

be sent to the sFlow Analyzer Server for examination. To configure the settings for the sFlow Counter Poller, click the 

Administration

 link, open the 

sFlow 

folder and click 

sFlow Poller

Settings

, which will produce the following window, 

displaying the parameters for the sFlow Counter Poller. 

Figure 6- 59. sFlow Counter Poller Settings window 

The following fields are displayed: 

Parameter                    Description 

Port 

Displays the port from which packet counter samples are being taken. 

Analyzer Server ID 

Displays the ID of the Analyzer Server where datagrams, containing the packet counter polling 

information taken using this polling mechanism, will be sent. 

Polling Interval 

(sec) 

The Polling Interval displayed here, is measured in seconds and will take a poll of the IF 

counters for the corresponding port, every time the interval reaches 0 seconds. 

Modify 

Click this button to modify the settings for this entry. The 

sFlow Sampler Settings Edit

window will be produced for the user to configure. 

Delete  

Click the 

 of the corresponding entry to be deleted. 

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