QoS profile: Egress Max of Tunneled Traffic + Egress guaranteed of Clear(Regular) Text Traffic > Egress Max of Interface

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ThomasX
L1 Bithead

QoS profile: Egress Max of Tunneled Traffic + Egress guaranteed of Clear(Regular) Text Traffic > Egress Max of Interface

Hi all,

I have some Platform: PA-850, PA-820, ...

I have configure QoS profile and apply QoS profile to interface (ethernet1/1) as attach files.

When configure QoS profile then: Egress Max of Tunneled Traffic + Egress guaranteed of Clear(Regular) Text Traffic > Egress Max of Interface

But, some Platforms then commit -> OK, some Platform then commit -> error.

Could you help me resolve this problem and explain to our customer

 

QoS profile_OK.PNGQoS setting_OK.PNGQoS error.PNG

 

Thanks,

ThomasX

Thomas
NWilliams3
L2 Linker

In Bangkok_Office_QoS policy, you have set the max and guaranteed to be 50Mbps. 

 

You attached that profile to both a tunnel, AND cleartext traffic. However, you have only allocated 50 Mbps for Eth1/1 when you need at least 100 (the sum of both types of traffic you are using the QoS feature for).

 

See attached photo examples. In my example, my maximum egress on eth1/3 needs to be at least 500Mbps to support the 250 maximum of each cleartext/tunnel QoS. However, if you don't set a maximum, then you will need the sum to be at least the guaranteed egress, in my case, 400 Mbps. 

 

Be sure you enable QoS only on egress interfaces, and that the maximum bandwidth doesn't exceed the ISP perimeter pipe, also.  See here for other examples, where you will see the sum of guaranteed/max egresses profiles do not exceed what is allocated on the interface. 

Screen Shot 2021-03-30 at 10.02.00 AM.png

 

Screen Shot 2021-03-30 at 9.58.39 AM.pngScreen Shot 2021-03-30 at 9.59.08 AM.png

NW
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