sFlow Source Interface Configuration

Use the sFlow Source Interface Configuration page to specify the physical or logical interface to use as the sFlow client source interface. When an IP address is configured on the source interface, this address is used for all sFlow communications between the local sFlow client and the remote sFlow server. The IP address of the designated source interface is used in the IP header of sFlow management protocol packets. This allows security devices, such as firewalls, to identify all source packets coming from a specific device.

To access this page, click System > Advanced Configuration > sFlow > Source Interface Configuration in the navigation menu.

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sFlow Source Interface Configuration Fields

Field Description
Type The type of interface to use as the source interface:
  • None: The primary IP address of the originating (outbound) interface is used as the source address.
  • Interface: The primary IP address of a physical port is used as the source address.
  • Loopback: The primary IP address of the loopback interface is used as the source address. A loopback is always reachable, as long as any routing interface is up.
  • VLAN – The primary IP address of a VLAN routing interface is used as the source address.
Interface When the selected Type is Interface, select the physical port to use as the source interface.
Loopback Interface When the selected Type is Loopback, select the loopback interface to use as the source interface.
VLAN ID When the selected Type is VLAN, select the VLAN to use as the source interface. The menu contains only the VLAN IDs for VLAN routing interfaces.
Tunnel ID The primary IP address of a tunnel interface is used as the source address.

If you change any of the parameters, click Submit to apply the changes to the system. If you want the switch to retain the new values across a power cycle, you must save the configuration.