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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 hulu, or similar).

Is any of this info publicly available anywhere?

IX charts are public in Chile by law. Everything looks well except the Telefonica (TIWS) international trunk [1]. It started dropping all traffic at the same time.

[1] http://pit.grupogtd.com/default.php?id=1

TIWS is back online. I'd presume they are draining most traffic to prevent overload according to the public SRE practices. I theorize it should take a few minutes to get everyone back in.

Que bacan weon! Estoy en viña ahorita. Sabes por que Movistar es muy lento com LTE aca?

Are you on prepaid? Virtually all Chilean prepaid carriers are deathly slow, especially outside of Santiago. I had barely any service in Algarrobo on Claro, but postpaid plans ran just fine, especially Claro, even in crazy places like Farellones :)

For what it's worth, I hated every second of my life in vina and that stupid town to the north of it and also Valparaiso. God, bring me back to La Parva or Embalse El Yeso. Some of the most incredible, untouched mystical land there!

I’m currently roaming on a post paid US plan. When I arrived in Chile I had 3G on Claro. Then it switched me to LTE on Movistar. 3G on Claro was more reliable.

Interesting to know about pre vs post paid. Will keep it in mind for longer trips when I normally buy a local SIM.

We just spent the last week in Torres del Paine backpacking around ... what an amazing place! Going to spend a couple days in viña and then headed to Conce to see some old friends. I’ve not been to La Parva but will add it to the list!

Enjoy, my friend! If you have a car, the mountains to the East of Santiago are absolutely awesome. Everything is safe and cool there, nothing worse than Californian tier driving. There's even free wifi at La Parva, and a ski lift to I think 12,000 feet in elevation if you dont want to walk haha.

Enjoy the city! I just had really bad experiences there. It's probably not the norm but I just hate petty thieves and the grime when I'm paying foreigner prices. I was based in Las Condes for 3 months and really loved it.

I think I still have my little $7 claro sim card lying around here somewhere :)))

siempre pillas un chileno en los comentarios

I just see a tiny blip (or 2) on Toronto’s IX, but that’s aggregate, not port by port:


Doesn't really show much of a change right now, nor does the aggregate chart for the SIX in Seattle.

The largest downstream/eyeball networks that take Youtube traffic do it via PNIs with them so you won't see that in an IX fabric traffic chart. For example the Google/Youtube AS exchanges traffic with Comcast directly by their own dedicated ports, no IX involved.

Is this not indicative of the drop of traffic in Australia?


Indeed it's not showing the Youtube issue for the reason you mentioned. Still relevant to the question above :)

there are a number of IXes that publish aggregate traffic charts, updated reasonably frequently, a lot fewer that publish traffic charts for individual ports or peers. If you want granular data you have to know somebody who runs the core BGP stuff for a reasonably sized ISP, and you can ask them for redacted copies of charts.

Here's for Portugal, we need around 85gbps at peak.


A lot of them have stuff like total traffic over time under the statistics link.


Just one I found quickly, the UK results are t interesting but check out LINX NoVA https://portal.linx.net/

What is an AS

From the wikipedia article: https://en.wikipedia.org/wiki/Autonomous_system_(Internet)

    ...an autonomous system *(AS)* is a collection of
    connected Internet Protocol *(IP)* routing prefixes
    under the control of one or more network operators on
    behalf of a single administrative entity or domain that
    presents a common, clearly defined routing policy to the

I only wish I could currently watch a video link to that instead...

I guess it goes to show how much we take connectivity and uptime for granted these days.

It saddens me that the link you posted had to leak the OS you're using... (the fact that it happens)

Or maybe I'm using an extension like this, and am pretending to be a Ubuntu+Firefox user so that they get their commission money from Google --> Mozilla, indirectly funding them.


my nerd-profiling radar had you as a network engineer = it's probably ubuntu ;-)

Sounds like cheating.

I think clients are allowed to send whatever user agent they want - it's essentially a preference for how they would like the website rendered for them.

Also I believe it's technically a violation of the HTTP spec to serve different GET requests to different user agents.

> I believe it's technically a violation of the HTTP spec to serve different GET requests to different user agents.

Is this actually true?

For what it's worth, Google serves a completely different webpage to IE 5 (try it, they still support IE 5/6/etc) as opposed to a modern browser.

That's just presentation and layout though. Am I really not allowed to send different document content to different UAs?

Arent those two statements contradicting?

If it would be a violation to change things based on user agent, but the purpose of the user agent to specify how you want things changed, then...

if it was purely about different rendering of the exact same content, then wouldn’t it be the browsers responsibility (and thus UA is unecessary)

I have to imagine browsers are allowed to extend the spec, and UAs are either in theory or in practice a way to communicate those extensions; but because site operators were only specifically designating content for the major browser(s), any compliant but unlisted browser would never get that content.. and suddenly everyone was calling themselves netscape

Autonomous System

AS? IX? Not everyone knows your insider lingo.

But seriously, reading how the internet works is pretty amazing.

This is hacker news, I think someone can be forgiven for using hacker lingo.

See: How I feel every time someone talks about using some six week old framework to program in some 3 month old extension to some 6 month old language (except, this lingo has been around for decades).

It's ISP / Network Engineer / Bit-shifter 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.


I'm guessing it stands for Internet eXchange?

Internet Exchange.

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