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DiffServ uses
nodal PHB and network engineering to achieve “domain PHB”. Common PHB are
(BE) Best Effort, (AF) Assured Forwarding, and (EF) Expedited Forwarding.
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IntServ operates
only (E2E) end-to-end. Commonly uses RSVP for signaling. Not a scalable
model, inefficient resource usage.
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SWAN is
stateless model. Classifies traffic to RT, real-time, and BE. Traffic is
demoted to BE when bandwidth becomes limited.
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INSIGNIA, state
oriented model. Requires reservation, but automatically recovers from
mobility scenarios.
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FQMM operates
like IntServ for real-time traffic, and like DiffServ elsewhere.
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