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Starlink is currently experiencing a service outage

starlink.com

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Re: Starlink is currently experiencing a service outage

#101

Curious as to what could cause a global outage like that. The system consists of birds in the air and individual ground stations. There's no big choke point that I'm aware of that could cause the whole shebang to go dark. Am I missing something here?

shutdown now. Forgot the /r

Re: Starlink is currently experiencing a service outage

#102
post #48

Earlier quoted context omitted.

if you could somehow put something into persistent storage on the satellites that causes it to crash every time it tries to start up before it gets to the point where it's able to update the software, then they'd be bricked. see also: https://arstechnica.com/cars/2022/02/radio-station-snafu-in-...

I don't know how Starlink's satellites are architected, but the spacecraft I am familiar with has several different boot images with automatic failover. For that system, you would have to replace/corrupt multiple of the actual boot images to brick the system completely.

There also must be some seriously robust out-of-band systems in place here.

Re: Starlink is currently experiencing a service outage

#103

Earlier quoted context omitted.

It's essentially impossible for anyone to disable the Starlink network by "taking out satellites" through physical means. There aren't enough anti satellite missiles in the world to make a dent, it would cost trillions to manufacture enough, and SpaceX can launch satellites faster than anyone could manufacture interceptors anyway. And Kessler syndrome is impossible at the altitudes Starlink uses. Cyberattack is the o…

>>There aren't enough anti satellite missiles in the world to make a dent, it would cost trillions to manufacture enough Few big nukes are enough to take out all satellites.

I don't believe this is true. And of course detonating nukes in space would be an act of war against the whole world.

Re: Starlink is currently experiencing a service outage

#104

So, if (just spitballing here) Russia were to have wanted to take out Starlink in order to handicap Ukrainian operations, and they didn't want to do something as visible as actually taking out the satellites, what would be the most likely way for them to have done it? And how would we be able to check if that's what happened? No idea if this is plausible at all, just raising the question for anyone who knows more abo…

Yeah, Russia maanged to knock Viasat offline with hacking during the initial invasion. The original donated Starlinks were supposed to replace Viasat and SpaceX was surprised that they ended up being used on the front lines. Russia has certainly been trying to knock them out ever since.

Re: Starlink is currently experiencing a service outage

#105

Earlier quoted context omitted.

BGP is the canonical way to take your entire global network offline within seconds. Glancing at BGP looking glasses, Starlink's prefixes seem to still be announced, but there could still be an accidental blackhole or routing loop within their AS, or something broken in one of their transit providers. No idea if that's what's going on, but routing protocols are one of a few effectively global control planes that can g…

If it were BGP/routing, you would think we'd be able to still get a signal and the modem would think it's healthy (although maybe not if the issue prevented us from obtaining our public IP), we just wouldn't be able to route to any dst. In the current case we don't have a signal (orange light on the modem)

Yes, before the drop out my traffic was coming from a downlink station in Bulgaria, on an IP on AS14593

Traceroute from "the internet" back to that IP reaches AS14593 just fine, and my endpoint doesn't get beyond the first hop of the local starlink router.

Whatever it is, it doesn't look like a peering problem

Re: Starlink is currently experiencing a service outage

#107

Earlier quoted context omitted.

BGP is the canonical way to take your entire global network offline within seconds. Glancing at BGP looking glasses, Starlink's prefixes seem to still be announced, but there could still be an accidental blackhole or routing loop within their AS, or something broken in one of their transit providers. No idea if that's what's going on, but routing protocols are one of a few effectively global control planes that can g…

If it were BGP/routing, you would think we'd be able to still get a signal and the modem would think it's healthy (although maybe not if the issue prevented us from obtaining our public IP), we just wouldn't be able to route to any dst. In the current case we don't have a signal (orange light on the modem)

Does the orange light specifically mean no RF link at all? Or does it include anything that prevents the modem from getting an IP address and route configuration? If the latter, BGP could still be at fault if it took out access to the control planes on the ground. But again all just guessing, from the outside all I see is the BGP routes are still being announced, and everyone seems to be seeing 100% packet loss and zero traffic.

Re: Starlink is currently experiencing a service outage

#109
post #42

Curious as to what could cause a global outage like that. The system consists of birds in the air and individual ground stations. There's no big choke point that I'm aware of that could cause the whole shebang to go dark. Am I missing something here?

There is a non-zero probability that Musk personally tried to use Grok to make and roll out a software update.

Unless Musk is outside the country, the outage started in the late morning [1]. If this happened at 3AM, your hypothesis would be more likely.

[1] https://www.pcmag.com/news/spacexs-starlink-hit-by-major-out...

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