It was Cogent actually in the incident I'm thinking of. Also, it has everything to do with net neutrality - this is Comcast using explicit tactics to strong-arm a company into a position where they are more likely to accept their terms, which is what net neutrality tries to prevent/set a framework to handle.
It's true that bandwidth is not unlimited, but there's a simple solution - augments and new peering. However, one of Comcast's techniques to strong-arm companies into accepting their peering agreements is by delaying new peering connections and upgrades of existing ones by a very long time - this has the "benefit" of technically not being a throttling technique, but it achieves the same goal.
And in fact, Cogent's version of this story is eerily similar to what we dealt with at my workplace: (from https://www.cnet.com/news/cogent-sa...connection-deal-with-clever-traffic-clogging/ ) :
Maybe we're talking about different situations, but the one I'm thinking was definitely level 3:
https://www.cnet.com/news/understanding-the-level-3-comcast-spat-faq/
My main point was that it wasn't about throttling or de-prioritizing netflix traffic (what most people think of when it comes to net neutrality). How do the regulations have to say about disputes such as that (I'm asking, I honestly don't know) since it's not intentional throttling, but rather lack of bandwidth?
And yes, throttling and lack of bandwidth are very similar (after all, throttling is just artificially introducing a lack of bandwidth). But they are different problems, unless it's done intentionally. Then they are effectively the same thing achieving the same goal. This is also where regulations can be very tricky to implement properly. However, that isn't what happened between comcast and netflix. Netflix made a change to using Level 3 as a CDN. This drastically increased the bandwidth required between Level 3 and comcast. This was not an intentional "throttling" by comcast, but rather a change made by netflix/level 3 that created the need for many times more bandwidth. If it were an intentional action by comcast to create a scenario of insufficient bandwidth targeting netflix specifically, then I would agree it is a net neutrality issue.
How do the net neutrality regulations differentiate between an unintentional lack of bandwidth and an intentional one as a way of throttling?
Edit: We were definitely talking about different situations. I haven't read about the cogent issue. I was thinking the Level 3 fiasco since I remembered that really igniting net neutrality discussions a while ago