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Notification Rate Control (draft-ietf-sipcore-event-rate-control-00)

aki.niemi@nokia.com krisztian.kiss@nokia.com salvatore.loreto@ericsson.com 76th IETF, Hiroshima November 2009. Notification Rate Control (draft-ietf-sipcore-event-rate-control-00). Recap. The draft defines the following three “Event” header field parameters:

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Notification Rate Control (draft-ietf-sipcore-event-rate-control-00)

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  1. aki.niemi@nokia.com krisztian.kiss@nokia.com salvatore.loreto@ericsson.com 76th IETF, Hiroshima November 2009 Notification Rate Control(draft-ietf-sipcore-event-rate-control-00)

  2. Recap • The draft defines the following three “Event” header field parameters: • min-interval: minimum notification time period between two notifications, in seconds. • max-interval: maximum notification time period between two notifications, in seconds. • average-interval: an average cadence at which notification are desired, in seconds.

  3. Recap • A Subscriber that wishes to apply a “rate-control” to notifications MUST construct a SUBSCRIBE that includes the parameter and the relative value in the Event header. • A Notifier that supports the “rate-control” mechanism MUST extract the value from a SUBSCRIBE request, use it and • reflect back the used value in a Subscription-State header field of the subsequent NOTIFY request.

  4. Update rate control parameters • All the set rate-control parameters can be updated • including the parameter and the updated value in an Event header field in any 200-class responses to a NOTIFY request.

  5. Other changes • Emphasized that rate control parameters can be changed at any time by the notifier based on local policy or implementation-determined constraints. • In minimum rate mechanism, the NOTIFY request may contain partial or full state depending on what the event package specifies.

  6. Questions ?

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