[c-nsp] QoS Cisco Serie 800 and 1800

[Clue Store]

Hi Alejandro,

If you're doing this with xDSL, you will have to apply the service-policy to
the PVC for outgoing to make it work. Here's an example of what I use. I
know your class-maps and policy-maps are different, but you should be able
to get the point.

class-map match-any VoIP
 match ip rtp 16384 16383
 match access-group name VoicePorts

policy-map Voice
 class VoIP
  priority percent 75
 class class-default
  fair-queue


interface ATM0.1 point-to-point
 pvc 1/100
  vbr-rt 384 384
  tx-ring-limit 3
  service-policy output Voice


ip access-list extended VoicePorts
 permit udp any host x.x.x.x range 22026 62025
 permit udp any host x.x.x.x range 22026 62025




HTH,
Clue

On Fri, Nov 20, 2009 at 9:26 AM, Alejandro Selios <aselios at gmail.com> wrote:

> Hi,
>
> I want to configure QoS on a Cisco's 800 and 1800 series router and I
> couldn't make it work the way I want. I've configured three classes of
> service called GOLD, SILVER and BRONZE, designed for low latency, low loss
> and data respectively.
>
> * I want the GOLD class to have a maximum bandwidth of 25%, even if there
> is
> traffic in the other classes.
>
> * The SILVER class has a minimum bandwidth of 50% and, if there's no
> traffic
> in the GOLD queue, I want this class to take the available bandwidth which
> is not used by the GOLD class. Thats means that the SILVER class has a 50%
> of assured bandwidth and can increase to a maximum of 75% of the total
> bandwidth.
>
> * The BRONZE class has no assured bandwidth and can only take the bandwidth
> which is not used for the other classes.
>
> The problem is that with Cisco's QoS tools I have not reached the desired
> goal. I have tried with different configurations and IOS and I couldn't get
> any successful result . Below I attach the policy configuration that I have
> tried (just to give you an example).
>
> Is there any way in which I can achieve the behavior that was described
> above?.
>
> Thanks in advance.
>
>
> Standard Configuration
> -------------------------------------
>
> policy-map QoS_POLICY
>  class GOLD
>   priority percent 25
>   police cir percent 25 pir percent 25
>   set dscp ef
>  class SILVER
>   set dscp af41
>    bandwidth percent 50
>    shape average percent 75
>  class class-default
>    fair-queue
>    set dscp af12
>    bandwidth percent 25
>
>
>
>
> Hierarchical Configuration
> ---------------------------------------------
> policy-map GOLD+SILVER
>  class GOLD
>    priority percent 33
>    police rate percent 33
>  class class-default
>    fair-queue
>
> policy-map QOS
>  class GOLD+SILVER
>    shape average percent 75
>    bandwidth percent 75
>    service-policy GOLD+SILVER
>  class class-default
>    fair-queue
>
>
> Note: This configuration was applied in a subinterface (xDSL, 802.1q
> ethernet) and for the outgoing traffic.
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