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Beginner

DMVPN - Spoke-to-Spoke per-tunnel QoS

Hello

I have implemented DMVPN with Per-tunnel QoS. It works fine from Hub to Spoke, but I am confused with per-tunnel QoS between spoke sites. The Cisco documentation that I found is not clear/does not dwell into much details when it comes to spoke-to-spoke QoS.

 

Let's take a simple example, we have:
- 1 HUB = 150Mb/s
- Spoke A = 10Mb/s
- Spoke B = 10Mb/s
- Spoke C = 5Mb/s

There is no problem between the Hub and the Spokes.
There is no problem between Spoke A and Spoke B (they have the same NHRP attribute group)
However, there is no QoS policy applied between Spokes A/B and Spoke C because:
- Spokes A/B have the NHRP attribute group "Branch-10M"
- Spoke C has the NHRP attribute group "Branch-5M"

 

Can Per-tunnel QoS be configured to work between spoke sites with different WAN bandwidth?

 

Thanks

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VIP Mentor

Re: DMVPN - Spoke-to-Spoke per-tunnel QoS

Hello,

 

not sure how you have configured the spokes, but the QoS should look something like the below. Post the full configs of the spokes if possible.

 

Spoke A

 

policy-map PM_1
class class-default
shape-average 10000000
fair-queue
!
interface Tunnel0
ip nhrp attribute Group_1
ip nhrp map group group1 service-policy output PM_1

 

Spoke B

 

policy-map PM_2
class class-default
shape-average 10000000
fair-queue
!
interface Tunnel0
ip nhrp attribute Group_1
ip nhrp map group Group_1 service-policy output PM_2

 

Spoke C

 

policy-map PM_3
class class-default
shape-average 5000000
fair-queue
!
interface Tunnel0
ip nhrp attribute Group_1
ip nhrp map group Group_1 service-policy output PM_3