This dashboard provides an overview of the usage of individual interfaces of Router and Firewall devices. The dashboard has three levels:

• The Top view displays device level metrics in a tabular form.
• Once you select a device in the Top view, the middle table shows the basic interface level metrics such as received and sent bytes.
• You can drill-down and get Application level usage and QoS metrics for a specific device interface. To do this, select a device in the Top view and a specific interface in the middle view.

The following sections provide more information about the Interface Usage Dashboard:

• Data source
• Adding/Removing Devices and Interfaces to the Dashboard
• Viewing device level metrics
• Viewing interface level metrics
• Viewing Application Usage
• Viewing QoS Statistics
• Drill-down from widgets
• Modifying widget information display
• Changing refresh interval
• Forcing a refresh

Data source

#snmpwalk –v2c –cpwd 10.1.1.1 ifName
IF-MIB::ifName.1 = STRING: port1
IF-MIB::ifName.2 = STRING: port2
IF-MIB::ifName.3 = STRING: port3

Here the SNMP interface ID of port1 is 1, SNMP interface ID of port2 is 2 and so on.

Use the SNMP interface ID in the config system virtual-wan-link command – see the examples below:

This is a basic example where the port, health check members and SNMP index can align naturally, however this is not likely to be the case with all configurations.

#config system virtual-wan-link
  set status enable
  config members
    edit 1
      set interface port1 
    next
    edit 2
      set interface port2 
    next
  end
 
#config health-check
    edit "HC_Backoffice"
                set server "8.8.8.8"
                set update-static-route disable
                set members 1 2
     next

As mentioned, to ensure that the Interface SNMP Index ID corresponds to that of the virtual WAN link and the health check, it is required that SNMP index must align. This example and description shows how to configure a FortiGate for SDWAN monitoring with FortiSIEM.

1. The interface should specify the SNMP index, for example, 105 (set snmp-index 105) :

   config system interface

   edit "port4"

   set vdom "root"

   set ip 10.1.31.10 255.255.255.240

   set allowaccess ping https ssh

   set type physical

   set netflow-sampler both

   set inbandwidth 50192

   set outbandwidth 50192

   set ingress-shaping-profile "test_Internal"

   set egress-shaping-profile "test_Internal"

   set alias "MPLS"

   set snmp-index 105

   set preserve-session-route enable

   next

   end

2. The member ID in the virtual WAN link must be same as the SNMP index associated with the Interface, for example, 105.

   config system virtual-wan-link

   set status enable

   config members

   edit 105

   set interface "ha"

   set gateway 10.1.31.1

   set comment "MPLS"

   next

   ……

   ……

   end

   end

3. The member ID should be added to a health check, again in this example it is 105.

   config health-check

   edit "TEST_Backoffice"

   set server "10.10.33.240" "10.10.1.240"

   set interval 5

   set update-cascade-interface disable

   set update-static-route disable

   set members 1 2 105

   next

   end

4. When monitoring Latency, Jitter and Loss via SNMP it is now possible to identify the Interface it is associated with the health check.

   [snmpwalk -v2c -c {password} {HostIp} 1.3.6.1.4.1.12356.101.4.9.2.1

   SNMPv2-SMI::enterprises.12356.101.4.9.2.1.3.7 = Gauge32: 105

   SNMPv2-SMI::enterprises.12356.101.4.9.2.1.5.7 = STRING: "20.078" (latency)

   SNMPv2-SMI::enterprises.12356.101.4.9.2.1.6.7 = STRING: "0.736" (Jitter)

   SNMPv2-SMI::enterprises.12356.101.4.9.2.1.9.7 = STRING: "0.000" (Loss)

Adding/Removing devices and interfaces to the dashboard

When you create an Interface Usage Dashboard for the first time, no devices are displayed.

Complete these steps to add a device to the dashboard:

1. Click the devices icon.
2. Select the Organization and then click the Firewall or Router Switch folder.
3. Select a device and its interface of interest.
4. Click the right arrow.
5. Click Save.

Complete these steps to remove a device from the dashboard:

1. Click the devices icon.
2. Select the Device/Interface pair from the selected list.
3. Click the left arrow.
4. Click Save.

This dashboard is data driven. That means the dashboard will be populated only if the metrics are present. First, create a Summary dashboard and see if the devices are present in that dashboard and display values. Then, you will see them in this dashboard.

Viewing device level metrics

The Top view displays Device level metrics. The metrics are averaged over three minute intervals. To see the trend, click the trend icon next to the numbers.

Viewing interface level metrics

Once you select a device in the Top view, the middle table displays the interface level metrics for that device. The metrics are averaged over three minute intervals. To see the trend, click the trend icon next to the numbers.

Viewing Application Usage

Complete these steps to see the Application Usage for an interface:

1. Select a device in the Top view.
2. Select an interface in the Middle view.
3. Click the Application Usage tab.

Viewing QoS Statistics

Complete these steps to see the QoS Statistics for an interface:

1. Select a device in the Top view.
2. Select an interface for the selected device in the Middle view.
3. Click the QoS Statistics tab.

Drill-down from widgets

Click the magnifying glass icon on a widget. This will take you to the ANALYTICS tab with the values populated. From there, you can analyze the data in more depth.

Modifying widget information display

Follow the steps in Widget Dashboard > Modifying widget information display.

Changing refresh interval

Select the refresh interval from the drop-down menu on top-right.

Forcing a refresh

To update the whole dashboard, select the refresh icon on the top-right menu.