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Bandwidth & shape average combined


QoS bandwith calculationHow can I view bandwidth use by ip/host on a Cisco router?MikroTik bandwidth managementHow test dedicated bandwidth - 10 Mbpscan average througput be greater than bandwidth?understanding Policy map bandwidth , police, shape commandsHow the Internet speed on PCs can be almost 100Mbps although the bandwidth of WAN is 155Mbps?Why traffic shape/police ingress traffic?Stupid question about bandwidthIs Cisco SG300-10PP & QoS appropriate to share bandwidth?













1















Here is a class-map that our provider has configured :



class ce_ef_output
police 2600000
class ce_af1_output
police 5360000
class class-default
bandwidth 592
class class-default
shape average 8890000


How do you explain the "bandwidth 592" with the "shape average 8890000" command ?
Isn't the bandwidth command going to limit traffic at 592 Kbps, and shape average at 8.8 Mbps (let's ignore Bc/Be and potential bursts) ?



How does it make sense to use both at the same time ?










share|improve this question


























    1















    Here is a class-map that our provider has configured :



    class ce_ef_output
    police 2600000
    class ce_af1_output
    police 5360000
    class class-default
    bandwidth 592
    class class-default
    shape average 8890000


    How do you explain the "bandwidth 592" with the "shape average 8890000" command ?
    Isn't the bandwidth command going to limit traffic at 592 Kbps, and shape average at 8.8 Mbps (let's ignore Bc/Be and potential bursts) ?



    How does it make sense to use both at the same time ?










    share|improve this question
























      1












      1








      1








      Here is a class-map that our provider has configured :



      class ce_ef_output
      police 2600000
      class ce_af1_output
      police 5360000
      class class-default
      bandwidth 592
      class class-default
      shape average 8890000


      How do you explain the "bandwidth 592" with the "shape average 8890000" command ?
      Isn't the bandwidth command going to limit traffic at 592 Kbps, and shape average at 8.8 Mbps (let's ignore Bc/Be and potential bursts) ?



      How does it make sense to use both at the same time ?










      share|improve this question














      Here is a class-map that our provider has configured :



      class ce_ef_output
      police 2600000
      class ce_af1_output
      police 5360000
      class class-default
      bandwidth 592
      class class-default
      shape average 8890000


      How do you explain the "bandwidth 592" with the "shape average 8890000" command ?
      Isn't the bandwidth command going to limit traffic at 592 Kbps, and shape average at 8.8 Mbps (let's ignore Bc/Be and potential bursts) ?



      How does it make sense to use both at the same time ?







      bandwidth






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 5 hours ago









      user53632user53632

      1334




      1334




















          1 Answer
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          oldest

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          3














          Bandwidth defines the minimum available bandwidth guaranteed during periods of congestion, this means, that if your link is congested and fully utilized, that class will still have reserved 592 Kbps.



          Both the shape and police commands restrict the output rate to a maximum Kbps value. Importantly, neither mechanism provides a minimum bandwidth guarantee during periods of congestion.



          Without knowing the full policy maps and group policies we can only speculate why they have decided to configure it like this and that is off topic here.



          Technically it means, that the default class, typical also know as best effort, has a maximum of 8.8 Mbps with a guaranteed minimum of 592 Kbps.






          share|improve this answer
























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            1 Answer
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            1 Answer
            1






            active

            oldest

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            active

            oldest

            votes






            active

            oldest

            votes









            3














            Bandwidth defines the minimum available bandwidth guaranteed during periods of congestion, this means, that if your link is congested and fully utilized, that class will still have reserved 592 Kbps.



            Both the shape and police commands restrict the output rate to a maximum Kbps value. Importantly, neither mechanism provides a minimum bandwidth guarantee during periods of congestion.



            Without knowing the full policy maps and group policies we can only speculate why they have decided to configure it like this and that is off topic here.



            Technically it means, that the default class, typical also know as best effort, has a maximum of 8.8 Mbps with a guaranteed minimum of 592 Kbps.






            share|improve this answer





























              3














              Bandwidth defines the minimum available bandwidth guaranteed during periods of congestion, this means, that if your link is congested and fully utilized, that class will still have reserved 592 Kbps.



              Both the shape and police commands restrict the output rate to a maximum Kbps value. Importantly, neither mechanism provides a minimum bandwidth guarantee during periods of congestion.



              Without knowing the full policy maps and group policies we can only speculate why they have decided to configure it like this and that is off topic here.



              Technically it means, that the default class, typical also know as best effort, has a maximum of 8.8 Mbps with a guaranteed minimum of 592 Kbps.






              share|improve this answer



























                3












                3








                3







                Bandwidth defines the minimum available bandwidth guaranteed during periods of congestion, this means, that if your link is congested and fully utilized, that class will still have reserved 592 Kbps.



                Both the shape and police commands restrict the output rate to a maximum Kbps value. Importantly, neither mechanism provides a minimum bandwidth guarantee during periods of congestion.



                Without knowing the full policy maps and group policies we can only speculate why they have decided to configure it like this and that is off topic here.



                Technically it means, that the default class, typical also know as best effort, has a maximum of 8.8 Mbps with a guaranteed minimum of 592 Kbps.






                share|improve this answer















                Bandwidth defines the minimum available bandwidth guaranteed during periods of congestion, this means, that if your link is congested and fully utilized, that class will still have reserved 592 Kbps.



                Both the shape and police commands restrict the output rate to a maximum Kbps value. Importantly, neither mechanism provides a minimum bandwidth guarantee during periods of congestion.



                Without knowing the full policy maps and group policies we can only speculate why they have decided to configure it like this and that is off topic here.



                Technically it means, that the default class, typical also know as best effort, has a maximum of 8.8 Mbps with a guaranteed minimum of 592 Kbps.







                share|improve this answer














                share|improve this answer



                share|improve this answer








                edited 3 hours ago

























                answered 4 hours ago









                CownCown

                6,39431030




                6,39431030



























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