[c-nsp] QoS for videoconferencing

[John Kougoulos]

Hello,

I think that you should prefer "priority" instead of "bandwidth" for VC 
applications. However you must have in mind that "priority" drops 
traffic exceeding the configured value

best regards,
John



Vincent De Keyzer wrote:
> Hello,
> 
>  
> 
> I need to set up QoS for a Internet access customer who wants to make sure
> that his VC system gets, no matter what, 512kbps out of his total 3 Mbps.
> 
>  
> 
> I would like somebody to validate my config because I am not too familiar
> with those things.
> 
>  
> 
> Here is my proposed config (customer has IP range x.y.z.224/28, VC system
> will be .230):
> 
>  
> 
> Access router:
> 
>  
> 
> access-list 100 permit ip any host x.y.z.230 
> 
> access-list 199 deny   ip any host x.y.z.230
> 
> access-list 199 permit ip any x.y.z.224 0.0.0.7
> 
> !
> 
> class-map match-all AAUR02i-VideoConferencing
> 
>  match access-group 100
> 
> class-map match-all AAUR02i-Other
> 
>  match access-group 199
> 
> !
> 
> policy-map AAUR02i
> 
>  class AAUR02i-VideoConferencing
> 
>   bandwidth 512
> 
>  class AAUR02i-Other
> 
>   bandwidth 2560
> 
> !
> 
> int ATM 2/0.159
> 
>  service-policy output AAUR02i
> 
>  
> 
> CPE:
> 
>  
> 
> access-list 100 permit ip host x.y.z.230 any
> 
> access-list 199 deny   ip host x.y.z.230 any
> 
> access-list 199 permit ip x.y.z.224 0.0.0.7 any
> 
> !
> 
> class-map match-all AAUR02i-VideoConferencing
> 
>  match access-group 100
> 
> class-map match-all AAUR02i-Other
> 
>  match access-group 199
> 
> !
> 
> policy-map AAUR02i
> 
>  class AAUR02i-VideoConferencing
> 
>   bandwidth 512
> 
>  class AAUR02i-Other
> 
>   bandwidth 2560
> 
> !
> 
> int FastEthernet 0/1
> 
>  service-policy output AAUR02i
> 
>  
> 
> Does that look good?
> 
>  
> 
> Vincent
> 
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