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External Network (SSPN) Interface SSPN = Subscription Service Provider Network SSP holds user credentials May build or partner with 802.11 access networks The SSPN may direct the STA-AN, for example by: Requiring that a certain encryption type is used (e.g. CCMP only) Setting allowed access rates for different types of traffic (e.g. 80 kbps voice, no video, and up to 500 kbps best effort) Specifying a minimum delay bound on transmitted frames Admission Control TSPEC processing is subject to authorized data rates as specified by SSPN |