Medium sized regional AS here: I am looking at a fairly large drop in IX traffic charts for our ports that face the IX, updated every 60s, which directly corresponds in time with the beginning of the Youtube outage. (We are not big enough to have a direct, dedicated peering session with the Google/Youtube AS). At any given time of day 4pm-11pm a huge percent of our traffic is Youtube (or netflix, or amazon video, or…
AS? IX? Not everyone knows your insider lingo.
AS - Autonomous System (Number, sometimes called ASN). What big networks like ISPs use to identify themselves and route to each other, usually via BGP.
It's a fancy way of saying the parent runs a "mid-sized" network big enough to have an AS, likely a mid-sized regional ISP, or part of a larger ISP.
IX -- Internet Exchange, similar to IBX or DC. Essentially the building where there are routers and switches that connect the networks to each other.
Basically parent is saying that they're an ISP and their systems in the IX that route to Youtube saw a dip in traffic, implying a network event of some sort on the Youtube side.