Path information can be viewed by clicking the path info button.

The output is described in the table below.

Section

Name

Additional Information

path

dir

The direction of the path.

source

The source IP address.

dest

The destination IP address.

switch

idx

The index number of the switch along the path.

name

The name of the switch.

dpid

The Data Path ID (DPID) of the switch.

inport

idx

The switch port number of the inbound traffic.

name

The name of the inbound port.

byte

The number of bytes transferred on the port.

outport

idx

The switch port number of the outbound traffic.

name

The name of the outbound port.

byte

The number of bytes transferred on the port.

To view a graphical representation of the path, click the => or <= icon in the Dir column for the relevant path.

This screen will display the LoadMaster, Real Server and any switches in between. The LoadMaster and Real Server are represented in brown. The LoadMaster is at the top and the Real Server is at the bottom.

The switches are represented in blue. The switch name will appear in the blue boxes if the SDN Controller picks it up.

The Data Path Identifier (DPID) of each switch on the network will be displayed on the right of the switches. The DPID is how the controller identifies the different switches.

The Media Access Control (MAC) address of the LoadMaster and Real Server will be displayed to the right of those devices. The IP address of the LoadMaster and Real Server will also be displayed on the left.

The colour of the paths are explained below:

  • Light green: Traffic is idle and the link is healthy.
  • Red: The path is congested with traffic.
  • Grey: The path between the LoadMaster and initial switch will always be shown as grey. All traffic leaves the LoadMaster so it will always be the most congested link.

So, in the example screenshot above - the path between the Path2 and Switch2 switches is healthy but the paths between Switch2 and Switch1 and the Real Server are congested.

The colour of the path may change as the path gets more or less congested. There is an array of red colours that can be displayed - the darker the red colour is, the more congestion is on the path.