Francois Le Faucheur– flefauch@cisco.com CDNI Work Scope Recap Francois Le Faucheur– flefauch@cisco.com.

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Francois Le Faucheur– flefauch@cisco.com CDNI Work Scope Recap Francois Le Faucheur– flefauch@cisco.com

A Day in the “Life” of a CDN Interconnection or how do all these CDNI “protocols” fit together?

<==> interfaces inside the scope of CDNI -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI

Day in Life of CDNI: CDNI Metadata -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI Day in Life of CDNI: CDNI Metadata Outside CDNI scope e.g. Cable Labs “Asset Distribution Interface (ADI) + VoD Metadata” CSPAuthoritative CDN: “Here is a new asset” “Here is the asset metadata” (e.g. Title, Genre, contract terms,..) AMS Within CDNI scope CDNI Metadata Exchange Protocol (Push mode in this example) uCDNdCDN: “Here is the distribution metadata for this new content” (e.g. where/how to acquire content, time-window)

Day in Life of CDNI: CDNI Request Routing -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metatdata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI Within CDNI scope CDNI Request Routing uCDNdCDN: “Can you serve request from this User Agent to this URI? dCDNuCDN: “Yes, I can, please redirect to URI’ Outside CDNI Scope e.g. DNS query or HTTP Get (URI) Outside CDNI scope e.g. HTTP Redirect (URI’) Or DNS “redirect” Outside CDNI scope: e.g. HTTP Progressive Download e.g. HTTP Adaptive Streaming

Day in Life of CDNI: CDNI Logging -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metatdata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI Day in Life of CDNI: CDNI Logging Outside CDNI scope Here is your delivery bill for all deliveries (whether performed by uCDN or dCDN) Outside CDNI scope Intra-CDN logs collection Within CDNI scope CDNI Logging Protocol dCDNuCDN: “Here is all the work I did for you: I delivered x Mbytes of this content to this user at this time”

Day in Life of CDNI: CDNI Control -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metatdata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI Within CDNI scope CDNI Control Protocol uCDNdCDN: “remove/invalidate that content from your cache” AMS Outside CDNI scope e.g. Cable Labs “Asset Distribution Interface (ADI) + VoD Metadata” CSPAuthoritative CDN: “Remove/Invalidate that asset” Day in Life of CDNI: CDNI Control

Example Candidate Protocol Stacks Notes: Example Candidate Protocol Stacks Notes: * those are examples (there are others) * those are candidates (they have not been “selected”)

CDNI Control Protocol: example candidate protocol stack -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI TCP TLS HTTP CDNI XML/JSON Schema Web Services based:

CDNI Request Routing Protocol: example candidate protocol stack -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI TCP TLS HTTP CDNI XML/JSON Schema Web Services based: TCP BGP CDNI AF? BGP based: ALTO TCP TLS HTTP ALTO based:

CDNI Logging Protocol: example candidate protocol stack -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI Apache Log format FTP Syslog based: CDNI Syslog records syslog Application syslog Transport

CDNI Metadata Exchange Protocol: example candidate protocol stack -------- / \ | CSP | \ / * * /\ * / \ --------------------- |CDNI| --------------------- / Upstream CDN \ | | / Downstream CDN \ | +-------------+ | Control protocol| +-------------+ | | |CDN Control |<======|====|=======>| CDN Control | | | +------*-*-*--+ | | | | +-*-*-*-------+ | | * * * | | | | * * * | | +------*------+ | Logging protocol| +-----*-------+ | | ****| Logging |<======|====|=======>| Logging |**** | | * --------------+ | | | | +-------------+ * | | * * * | Request Routing | * * * | ....*...+--------*----+ | protocol | +---*---------+...*..... . | * **|Req-Routing |<======|====|=======>| Req-Routing |** * | . . | * * +-------------+ | | | | +-------------+ * * | . . | * * * | CDNI Metadata | * * * | . . | * * +----------*--+ | protocol | +-*-----------+ * * | . . | * * |Distribution |<======|====|=======>| Distribution| * * | . . | * * | | | \ / | | | * * | . . | * * | | | \/ | | | * * | . . | * ****+---------+ | | | | +---------+**** * | . . | ******|Surrogate|*************************|Surrogate|****** | . . | | +---------+ | | Acquisition | | +-----*---+ | | . . | +-------------+ | | +-------*-----+ | . . \ / \ * / . . --------------------- ---------*----------- . . * . . * Delivery . . +------+ . ...............Request...........................| User |..Request.. | Agent| +------+ <==> interfaces inside the scope of CDNI **** interfaces outside the scope of CDNI .... interfaces outside the scope of CDNI TCP TLS HTTP CDNI XML/JSON Schema Web Services based: