Traffic-shape on ATM interface

Discussion in 'Cisco' started by Giannici Federico, Mar 30, 2005.

  1. I need to make an ACL based traffic-shape on an ATM/IMA interface in a
    Cisco 3640, but it seems that the "traffic-shape group" doesn't work on
    the ATM interfaces.

    I tried to use a policy-map but obviously it doesn't accept the "shape"
    command...

    If I have undestood it correctly, the "rate limit" command drops every
    single packet that is over the assigned bandwidth, so it seems a little
    too drastic to me...

    Is there any other way to limit the bandwidth based on ACLs?


    Thanks.

    --
    ___________________________________________________
    __
    |-
    |ederico Giannici http://www.neomedia.it
    ___________________________________________________
     
    Giannici Federico, Mar 30, 2005
    #1
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  2. Giannici Federico

    thrill5 Guest

    With ATM the only way to traffic-shape is by PVC.

    under the pvc configuration
    vbr-nrt <PCR> <SCR> <BC>

    where PCR is the Peak Cell Rate in Kbs, SCR is Sustained Cell Rate in Kbs
    and BC is the burst size in cells. You should set the PCR and SCR to the
    same value, and BC to 1.

    Scott

    "Giannici Federico" <> wrote in message
    news:d2f88l$9o5$...
    >I need to make an ACL based traffic-shape on an ATM/IMA interface in a
    >Cisco 3640, but it seems that the "traffic-shape group" doesn't work on the
    >ATM interfaces.
    >
    > I tried to use a policy-map but obviously it doesn't accept the "shape"
    > command...
    >
    > If I have undestood it correctly, the "rate limit" command drops every
    > single packet that is over the assigned bandwidth, so it seems a little
    > too drastic to me...
    >
    > Is there any other way to limit the bandwidth based on ACLs?
    >
    >
    > Thanks.
    >
    > --
    > ___________________________________________________
    > __
    > |-
    > |ederico Giannici http://www.neomedia.it
    > ___________________________________________________
     
    thrill5, Mar 31, 2005
    #2
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