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Configuring QoS

You can configure quality of service (QoS) for the BSG. You can selectively apply QoS according to media type. For example, you can configure one set of QoS parameters for a video stream and a different set of parameters for voice traffic.

To configure QoS, create a service class that filters traffic based on media type, and configure the QoS parameters that you want to apply to traffic that matches the media type. You then apply the service class to a new call usage policy.

You can also prevent packet gateway (PG) saturation by limiting the number of concurrent calls.

Step-by-Step Procedure

To configure QoS:

  1. Create a service class and assign a name to the service class.
    user@host#edit services border-signaling-gateway gateway bsg-1 embedded-spdf service-class gold
  2. Add a term to the service class, and assign a name to the term.
    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf service-class gold]
    user@host#edit term term-1
  3. Specify the type of media that you want to match to this service class.
    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf service-class gold term term-1]
    user@host#set from media-type audio
  4. Specify the QoS parameters or other actions to be performed on packets that match this service class.
    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf]
    user@host#edit then
    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf then]
    user@host#set committed-burst-size 3000
    user@host#set committed-information-rate 20000
    user@host#set dscp ef

    OR

    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf]
    user@host#edit then
    [edit services border-signaling-gateway gateway bsg-1 embedded-spdf then]
    user@host#set reject
  5. Apply the service class to a new call usage policy.
    [edit services border-signaling-gateway gateway bsg-1]
    user@host#edit sip new-call-usage-policy pname1 term t1 then
    then]
    user@host#set media-policy gold
  6. To provide a higher level of QoS, prevent the VPG embedded in the BSG from being saturated with calls by specifying a maximum number of concurrent calls for the VPG.
    edit services pgcp gateway vpg1
    [edit services pgcp gateway vpg1 ]
    user@host#set max-concurrent-calls 5000

Related Topics

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