How to fix high latency and packet loss f...

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Article Id 215911

Description

This article describes how to fix high latency and packet loss issues over Telstra satellite WAN connection in SD-WAN setup.

Scope

FortiGate.

Solution

High latency and packet loss over Satellite WAN connection under the performance SLA of SD-WAN will lead to link-down issues.

Since the satellite link latency is very large, it is necessary to modify the interval(default 500ms), probe-timeout(default 500ms), and SLA of health-check as follows:

config health-check
edit "SLA_Profile_ID"
set server <server1_IP_address>
set interval 1600
set probe-timeout 1600
set members 0
config sla
edit 1
set latency-threshold 1000
set jitter-threshold 800
set packetloss-threshold 5
next
end
next
end

Note: This is also applicable for Starlink as an SD-WAN member.

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Technical Tip: How to fix high latency and packet loss for Telstra satellite WAN connection in SD-WAN setup

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