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cpatte7372
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Cisco QoS Policy Question

Hello Experts,

Can someone show me how to configure a QoS policy that will limit traffic between to devices to a certain bandwidth. For example, the bandwidth on a link may be 10mb, however we want to only 2mb between DeviceA and DeviceB.

I know that QoS usually only gets invoked if the bandwidth on a link has reached a certain threshold, however I would like to set a QoS policy that will set the limit to 2mb between to devices regardless of of the available bandwidth.

Cheers

Carlton
Routers

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cpatte7372

8/22/2022 - Mon
tolinrome

What type of devices are we talking about, Cisco, switches, a node and a switch, etc?
cpatte7372

ASKER
Hi Tolin,

Thanks for responding.

These are nodes.

Regards
tolinrome

Yes but the QoS will be set on a firewall or switch usually.
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cpatte7372

ASKER
Hi Tolin,

Sorry for the delayed response.

The QoS will be set on our router.

I just need a policy that will limit the amount of traffic between two devices, and the policy is to be applied on the router.

Regards
Soulja

Are the two devices on the same subnet or different subnets?
Soulja

If on separate subnets:

ip access-list extended limit_2b
permit ip host x.x.x.x host y.y.y.y

class-map match limit2mb
match access-list limit_2mb

policy-map TEST
class limit2m
police cir 2000000

interface fax/x
service-policy input TEST
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cpatte7372

ASKER
Hi Soulja

Thanks for that.

I will test the policy when I get to work tomorrow and let you know how I get on.

I just have one question. Will the be invoked regardless whether the link is fully utilised or not?  As you QoS policies are only invoked if the link has reached full capacity.

Cheers
ASKER CERTIFIED SOLUTION
Soulja

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cpatte7372

ASKER
cheers