RE: QoS - nesting

Yes, this is how Hierarchical QoS works. It causes back pressure to be
applied at a lower speed then the true interface speed.

David

--
http://dcp.dcptech.com
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Tony
> Sent: Thursday, May 13, 2010 8:40 PM
> To: ccielab_at_groupstudy.com
> Subject: RE: QoS - nesting
> 
> Hit send too quick.
> 
> Is the "priority 1000" (guarantees 1Meg) and setting of the dscp to ef
> going
> to be applied if it is nested under the default class?
> 
> Thanks.
> 
> Tony
> 
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Tony
> Sent: Thursday, May 13, 2010 7:32 PM
> To: ccielab_at_groupstudy.com
> Subject: QoS - nesting
> 
> Referencing the docs on nesting -
> <http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/qos_frhqf_
> suppo
> rt_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1062013>
> http://www.cisco.com/en/US/docs/ios/qos/configuration/guide/qos_frhqf_s
> uppor
> t_ps6441_TSD_Products_Configuration_Guide_Chapter.html#wp1062013
> 
> gives an example of nesting, but does not use the same class name in
> both
> policy maps as does the example below.
> 
> 1.  What happens if you use the same name for a class to nest a policy
> when
> you used the same name in the policy you are nesting?  The example in
> the
> docs uses a different name besides the default "class-default".  Does
> not
> seem right but it is passing traffic.
> 
> 
> policy-map VOICE_QoS
>  class voice-ethernet
>     priority 1000
>    set ip dscp ef
>  class signaling-ethernet
>     bandwidth 20
>  class class-default
>     fair-queue
>      random-detect dscp-based
> 
> policy-map SHAPE
>  class class-default
>     shape average 5000000
>   service-policy VOICE_QoS
> !
> 
> 
> 
> Thanks.
> 
> Tony
> 
> 
> Blogs and organic groups at http://www.ccie.net
> 
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
> 
> 
> Blogs and organic groups at http://www.ccie.net
> 
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net