Technical Tip: Command to get the bandwidth usage, session information and link performance status of the interface

[nithincs]

Description
This article provides command to find the link and link-monitor process status.

Solution
Use below command to fetch the latency, jitter, packet loose and bandwidth usage of interface FortiGate.

# diagnose sys link-monitor interface <interface name>
 
aegon-kvm20 # diagnose sys link-monitor  interface port4
Interface(port4): state(up, since Sun Apr 11 12:30:26 2021
), bandwidth(up:1220bps, down:1600bps), session count(1), tx(2138996 bytes), rx(4274112 bytes), latency(0.81), jitter(0.07), packet-loss(0.00).

This commands provide below information:

state: interface status up/down.
bandwidth: bandwidth usage in bits per sec.
session count: number of session established with x interface as destination interface .
Current latency, jitter and packet-loss.

Note.
Interface should be member of SD-WAN health check or link-monitor to get the output.