View impacted VPN clusters to understand what apps are
experiencing performance issues.
Understanding what is causing degraded performance
for your apps and services is integral to ensuring the user experience
is not impacted. Understanding why your VPN clusters are impacted
and app traffic failed over to different links helps in fine tuning
your SD-WAN configuration.
the VPN clusters based on your preferred metric from the
and select time frame. In this example, we are viewing
containing impacted VPN clusters in the last 12
In the Sites column, select the impacted hub or branch
firewall to view the impacted apps and the corresponding link performance.
In the App Performance section, click an app to view
detailed Traffic Characteristic information about the app traffic
such as the internet service(s) and links used:
Review the pie chart to understand the breakdown
of app traffic across the your internet services.
Review the linegraph to understand how many bytes of data
were transferred over each internet service over time.
Review the Links Used section to understand which links the
app traffic used and to understand how many of the bytes were impacted
out of the total bytes in the selected time frame.
Investigate which health metric caused the app to swap
The dotted line indicates the seven day average for the
In the Links Used section of the Traffic
Characteristics tab, click an ethernet Link to view detailed Link
Characteristics (latency, jitter, and packet loss) over the time
frame specified in Step 2 to investigate
what health metric caused the app to swap links.
select another link to view the Link Characteristics for secondary
app link to better understand what caused the VPN cluster to become
After you have identified why the app traffic is impacted,
consider the following to resolve the issue:
Consider adding additional links to the Traffic Distribution
Profile. By adding additional links for app traffic to fail
over to, you help ensure that the app traffic and user experience
are not impacted by links with degraded health.
Reconfigure the health thresholds in your Path Quality
Profile. It may be that the health thresholds are too
strict, resulting in unnecessary link failover. For example, if you
have an app that can experience up to 18% packet loss before user
experience is impacted, having a 10% packet loss threshold would
result in the app failing over to a different link without a need
Consult your internet service provider (ISP) to determine if there are impacts to your network
outside of your control that they can resolve.