topic Re: Qos configuration request in Routing and SD-WAN

Qos configuration request

kriskrs — Fri, 15 Dec 2023 20:07:24 GMT

Hello,

Please let me know if following configuration is correct:

The request is:

Platinum AF46/EF 0%
Gold AF41 60%
Silver AF31 20%
Bronz NOMARK 20%

Therefore:

class-map match-any VOIP
match dscp ef
class-map match-any AppShare
match dscp af31
class-map match-any Video
match dscp af41
!
policy-map M1-QoS
class Video
bandwidth percent 60
class AppShare
bandwidth percent 20
class class-default
bandwidth percent 20
!
Policy Map M1-out
Class class-default
Average Rate Traffic Shaping
cir 200000000 (bps)
service-policy M1-QoS
!

Policy Map M1-QoS
Class Video
bandwidth 60 (%)
Class AppShare
bandwidth 20 (%)
Class class-default
bandwidth 20 (%)

!
interface GigabitEthernet0/0/23
service-policy input 200M
service-policy output M1-out

Because EF is 0% and bandwidth percent should be at least 1% I did not take in consideration under policy-map M1-QoS.

Class default is below:




class-map class-default
Class Map match-any class-default (id 0)
Match any

Thank you!

Re: Qos configuration request

Joseph W. Doherty — Thu, 14 Dec 2023 15:00:23 GMT

What's an AF46?

Your policy doesn't have a class for Platinum. Request is truly to guarantee zero bandwidth for EF? Might want all this class's traffic dropped? (As you've already discovered, you cannot assign zero percent bandwidth, but could 1% be used?)

Is the video real-time or streaming (as the should be treated differently)?

BTW, who is using the (very) old Olympic QoS model?

Re: Qos configuration request

kriskrs — Thu, 14 Dec 2023 15:09:05 GMT

Hello,

I believe you.

Is Voice (EF), the Platinum. Well, in this way the request came. This is the request and my question is, as was requested if is fine configured, the %.. their business 😄

Re: Qos configuration request

Joseph W. Doherty — Thu, 14 Dec 2023 15:31:22 GMT

Well again, you cannot provide a zero bandwidth class, so you cannot meet that requirement but without any class at all the traffic will be part of class-default and shares its 20% bandwidth guarantee (which is further away from the zero percent guarantee than one percent is).

BTW, possibly less than one percent might be accomplished using numeric bandwidth values.

Re: Qos configuration request

kriskrs — Fri, 15 Dec 2023 20:15:52 GMT

Hello,

Yes, you're right, if class it not mapped will go into default.

I'm trying to figure out how it looks.

Late edit:

policy-map M1-out
class class-default
shape average 200000000
service-policy M1-QoS
!
policy-map M1-QoS
class VOIP
bandwidth 1
class Video
bandwidth 120000
class AppShare
bandwidth 40000
class class-default
bandwidth 39999

It should be fine in this way? the numeric bw is the value of the procent from a total of 200Mbps -> Kbps

Thank you!

Re: Qos configuration request

Joseph W. Doherty — Fri, 15 Dec 2023 14:58:59 GMT

Yes, the edited reply version that I'm looking at, as I write this, is sort of what I had in mind. It's likely as close as you can get to meeting the requirements.

Re: Qos configuration request

kriskrs — Fri, 15 Dec 2023 15:08:31 GMT

Hello,

Thx a lot for open my eyes.

Have a nice weekend!