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CTV · scenario

Mid-roll on CTV with SSAI

step 1 / 4

A Roku viewer hits a mid-roll break. They see one continuous stream — but five ads were stitched in milliseconds ago.

Creative + targeting1GET /vast?iu=…2OpenRTB BidRequest3Broadcast to N DSPs4Cookie / IFA match5BidResponse + adm6Second-price clear7VAST 4.3 XML8HTTP range requests9AdvertiserCREATIVE + BUDGETPublisherVIDEO PLAYER SLOTAd ServerDECISIONINGSSPSELL-SIDE AUCTIONExchangeOPENRTBDSPBIDDERDMP / CDPSEGMENTSCDNMEDIA FILE
step 1

Manifest request

Roku app requests the HLS manifest. The CDN routes through an SSAI service (e.g. AWS Elemental MediaTailor).

All steps

When this breaks

Failure modes operators actually see. Tap one to read trigger, symptom, recovery, blast radius — then replay it in the sandbox to watch the message flow change.

Active recall
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