======sFlow Configuration on D-Link Switches======

=====Overview=====

sFlow is a feature on D-Link switches that allows for monitoring network traffic by sampling packets and sending them to an sFlow analyzer for analysis. This document provides a brief guide on configuring sFlow on D-Link switches using the Command Line Interface (CLI). Make sure that the port numbers match the expected configuration where UDP port number is 6343 (default for sflow)

=====Configuring sFlow=====

**Enable sFlow**: enable sflow

**Create an sFlow analyzer server**: create sflow analyzer_server <value 1-4> owner <name 16> {timeout <sec 1-2000000> | collectoraddress <ipaddr> | collectorPort <udp_port_number 1-65535> | maxdatagramsize <value 300-1400>}

**Configure the sFlow analyzer server**: config sflow analyzer_server <value 1-4> {timeout <sec 1-2000000> | collectoraddress <ipaddr> | collectorPort <udp_port_number 1-65535> | maxdatagramsize <value 300-1400>}

**Create a counter poller**: create sflow counter_poller ports [<portlist> | all] analyzer_server_id <value 1-4> {interval [disable | <sec 20-120>]}

**Create a flow sampler**: create sflow flow_sampler ports [<portlist> | all] analyzer_server_id <value 1-4> {rate <value 0-65535> | maxheadersize <value 18-256>}

=====Displaying sFlow Settings=====

  * **Show sFlow analyzer server settings**: show sflow analyzer_server
  * **Show counter poller settings**: show sflow counter_poller
  * **Show flow sampler settings**: show sflow flow_sampler
  * **Show overall sFlow settings**: show sflow

**Example Configuration**
<code>
DGS-3600:4# enable sflow
DGS-3600:4# create sflow analyzer_server 1 owner monitor collectoraddress 10.90.90.9
DGS-3600:4# create sflow counter_poller ports 1:1 analyzer_server_id 1 interval 20
DGS-3600:4# create sflow flow_sampler ports 1:1 analyzer_server_id 1 rate 10000 maxheadersize 128
</code>

<note tip>**Tips and Reminders**

  * Make sure to configure the sFlow analyzer server with a valid IP address and UDP port number.
  * Configure the counter poller and flow sampler settings according to your network monitoring needs.
  * Use the show commands to verify your sFlow settings.
</note>

**DLink sFlow Configuration Reference Doc**: [[https://www.dlink.com/-/media/business_products/dgs/dgs-3627g/additional-downloads/dgs_3627g_cli_manual_fr.pdf|This Link points to source file]].