FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
shahv
Staff
Staff
Article Id 194524

Description

 

This article describes how to check and monitor bandwidth utilization from a graphical point of view. This will permit us to keep track of the bandwidth utilization for the interface.
 
Scope
 
FortiGate.


Solution

 

Add an interface widget that makes it possible to check/monitor bandwidth utilization.

 

From GUI:

  1. Login to the FortiGate.
  2. Go to Dashboard -> Main/status.

 
  1. Check for the setting icon at the bottom, select the icon, and select 'Add Widget'.
 
 
  1. Go to 'Monitor', select 'Interface bandwidth' and select the interface.
 
 
The bandwidth tracking will be displayed:
 
 
Note:
In v7.0, v7.2, and v7.4, the 'Add Widget' icon is on top.
 
 
Then go to Network -> Interface Bandwidth.
 
interface.png
 
interface.png
 
In v7.4 and v7.6, the 'Edit Dashboard Widget' icon option gives access to selecting the FortiGate, Interface, and period.

194524-new edit.JPG
Once the monitor is configured, it can be checked from the Dashboard under Status.

Screenshot 2025-03-20 122310.png

 

 

Note:

Inbound traffic refers to data coming into the interface (from the Internet to the interface), while outbound traffic refers to data leaving the interface (from the internal network to the Internet). 


To check which source or destination over this specific interface is using the top bandwidth can be checked by follow this method:

Screenshot 2025-03-20 122355.png

 

Screenshot 2025-03-20 122524.png

 

FortiView Source Interfaces and FortiView Destination Interfaces dashboards can also be added to monitor usage of interfaces.


FortiView_Source_Destination_Interfaces.png

 

In case it is desired to see how many interfaces are being monitored, do that from the CLI with the following command:

 

config global

(global) # show full-configuration | grep -c "monitor-bandwidth enable"


Related article:
Technical Tip: Monitor bandwidth usage per source