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That chart is worthless without numbers. First off, the chart makes it sound like Netflix is preferring subpar transit providers, and that by simply switching
by batbomb 12y ago
That chart is worthless without numbers.
First off, the chart makes it sound like Netflix is preferring subpar transit providers, and that by simply switching to different transit providers, they'd be fine. But there's no numbers on total bandwidth. For example, if Verizon has 100Gbps to Netflix's content providers, and only 40Gbps to their other content providers, then the additional 20Gbps is going to be a drop in the bucket.
It could be the reverse: Netflix is choosing the 40Gbps provider where they could be choosing the 100Gbps, in which case they could easily triple the available bandwidth they have to send to Verizon.
But, we all know that's not the real issue.
Finally, if peak utilization means that netflix is saturating the router with reduced bitrate video, then increasing that could very well lead to saturation in the internal Verizon network.
EDIT:
I ran some numbers. If Netflix's providers are saturating at 100%, and other providers are only at 44% peak, and then peak incoming traffic is exiting the Verizon router at 56% peak, that should roughly mean that Netflix has roughly 3.6x the amount of bandwidth from "other transit providers" than it does from Netflix's transit providers, which, in turn, means that Verizon has roughly 2x the total bandwidth that Netflix uses available on it's network. What isn't mentioned is what percentage Netflix uses of it's current providers, how those "other providers" are split up, the maximum theoretical utilization, etc...
What isn't mentioned is how that's split up. It's probable Netflix can't use on most of those links even if they wanted to, and there's no word on how many links there are. If it was one giant link, and Netflix could use on it, sure, Netflix should probably try to do that.
Bottom line: I don't think there's anything technically limiting Verizon's capacity to Netflix's transit providers, as according to their numbers, Netflix's transit providers only constitute ~22% of the total bandwidth into Verizon. Down the line, it's probable that, even if these link issues were fixed at the border router, they would pop back up again in the Metro Area router or aggregation router, and really gum up Verizon's network.
- deleted 12y ago[deleted]
- josho 12y agoGreat analysis, thank you. Adding to your point about gumming up the metro area routers inside Verizon that may be quite possible. Remember this is Verizon's analysis for a single customer. What are the odds that Verizon, to influence public policy, choose a customer that would best represent Verizon's case. For example, a customer in a region that was just provisioned a bunch of extra capacity. So, it's possible that the percentages at the customer/aggregation/metro area are not typical for Verizon, but rather Verizon's best case scenario.