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Contabo 'unlimited' bandwidth got limited. The math inside.

Reviews by Prague 5 replies 506 views
Prague

Member OP

5 #1

My 'unlimited' got limited.
The math inside.
Contabo.
"Unlimited" bandwidth.
I tested.
For three weeks.
Every two hours.
Speed drops.
Not random.
Pattern.
Hidden throttle.
Here is proof.

Hour 0:  940 Mbps
Hour 2:  940 Mbps
Hour 4:  940 Mbps
Hour 6:  210 Mbps
Hour 8:  210 Mbps
Hour 10: 210 Mbps
Hour 12: 940 Mbps

Cycle resets.
Every twelve hours.
Three hours fast.
Three hours slow.
Repeat.
Not unlimited.
Algorithm.
I caught it.

iron core, iron will
SwapJones

Member

OOM killer's friend

1 #2

Maybe you just had network congestion... you know... maybe it's not intentional... maybe everyone hits the pipe at the same time... you know... maybe Contabo is innocent... maybe I'm just playing devil's advocate... you know... or maybe they oversold... maybe "unlimited" means "we hope you don't notice"... you know... maybe you noticed... maybe that's the problem... maybe...

RAM is just fast disk, right?
danfra

Member

#3

Not congestion. Congestion is bursty, asymmetric, route-dependent. This is clockwork.

Throttling algorithm: likely token bucket, 3-hour refill cycle. Common in budget hosts. No DDoS mitigation needed to identify this—basic traffic shaping, probably tc or equivalent at edge.

Contabo's "unlimited" is 940 Mbps × 3 hrs × 12 cycles = ~1.2 TB actual monthly cap at speed. Rest is 210 Mbps. You paid for unlimited. You got 1.2 TB @ line rate.

mitigated 800Gbps before breakfast
sarahjey

Member

3 #4

Sorry if this is a dumb question!! But how did you measure this? I have Time4VPS "unlimited" too and I want to check if they do the same thing... what tool did you use??

Also is there like a script I can run?? Thanks everyone!!

learning on $5 VPS and prayers
StuSpock

Member

NTP fundamentalist

#5

Which tool did you use to measure, I want to try this

MA

Member

#6

Which speed test did you run this on

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