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SecurityPlus
SecurityPlus
Explorer III
August 29, 2020
Question

Traffic Shapers - Computer Backup Traffic

  • August 29, 2020
  • 1 reply
  • 4140 views

We have situations in which computer backups transfer data from LAN to WAN. We would like for the backups to run as fast as they can using as much bandwidth as possible but not to slow down other WAN traffic. FortiOS 6.4.2

 

Could we accomplish this as follows:

 

Traffic Shapers, Type: Shared, Traffic Priority: Low

The Implicit medium traffic priority policy is the only other policy

 

Traffic Shaping, Source, Destination, Service set to to All

Application: the backup application

Action: Apply Shaper

Outgoing Interface: Outside

Shared Shaper

Reverse Shaper

 

Will this configuration allow the backup application to use the full bandwidth unless there is other traffic requiring the interface and in that case will reduce the bandwidth of the backup as necessary? I searched for other forum posts but could not find this scenario elsewhere?

    1 reply

    SecurityPlus
    SecurityPlusAuthor
    Explorer III
    October 9, 2020

    Can anyone weigh in on the approach above? Will it give priority to non-backup traffic but allow backup traffic to use all otherwise unused bandwidth?

    mauromosc
    mauromosc
    New Member
    October 20, 2020
    Hi, Have you tried to take a look on sdwan? Maybe you can achieve these goals with this feature. Also depending on the FortiGate model, you can't have QoS with hw acceleration. Regards, Mauro.
    Toshi_Esumi
    SuperUser
    Toshi_Esumi
    SuperUser
    October 20, 2020

    If the backup traffic caught by the shaper is the only traffic with "low" priority, yes, it would use bandwidth all other traffic didn't use. But you should simulate the situations to see if you get expected outcome. Traffic shaping is always tricky when multiple types of traffic and shapers co-exist.

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