2024 Forfatter: Peter John Melton | [email protected]. Sidst ændret: 2023-12-16 04:48
Dagens Spørgsmål & Svar session kommer til os med venlig hilsen af SuperUser-en underafdeling af Stack Exchange, en community-driven gruppe af Q & A-websteder.
Skærmbillede høflighed af Linux Screenshots (Flickr).
Spørgsmålet
SuperUser-læser dpiralis ønsker at vide, hvorfor en VPN-baseret ping er hurtigere end en ikke-VPN-ping:
When I play an online game without using a VPN, the ping time is around 120 ms. But when I use a VPN with a virtual location in Germany, the ping time is only 60-70 ms (which is amazing). When I use a VPN with a virtual location in Finland, the ping time is once again longer (more than 160 ms). My Internet connection is through the University of Greece.
Why would the ping time using a VPN be better than one without a VPN?
Without a VPN
VPN With a Virtual Location in Germany
VPN With a Virtual Location in Finland
Hvorfor er en VPN-baseret ping hurtigere end en ikke-VPN-ping?
Svaret
SuperUser bidragyder peterh har svaret for os:
Although it is an uncommon situation, it is possible and there could be many answers. It is likely related to the internal structure of your network provider.
Internet service providers also need to pay for network access with different providers. In most cases, they are continuously trying to find the cheapest and best providers. Thus in most cases, they use different routing for nearby areas versus distant, remote locations. Networks for distant, remote locations are mostly through the cheapest provider while networks for local areas are mostly provided by a regional organization established by a group of local Internet service providers or by the local government.
It is normal for Internet service providers to pay for a much narrower network bandwidth from more expensive network providers, especially if you are signed up with a small Internet service provider or opted for a cheap service package. If you use a VPN, then the VPN probably connected to the faster external network used by your Internet service provider, thus the better speed. The VPN provider probably also uses a much faster network just like your Internet service provider does.
Checking the trace routes, we can get very precise information with regard to what and where the slow points in the “system” are (especially if we compare all three routes).
When looking at where the packet response times are the longest in your case (without a VPN and the VPN location in Finland), it is between 83.97.88.69 and 62.40.112.215. Checking them via an IP Who Is lookup service (What Is My IP, for example), we can see that it is where your Australian packets are arriving at England. It is probably routed through multiple sub-ocean communication cables, which are likely very expensive for your network provider to access, so it tries to cut down on the cost in that area.
What makes things a bit more funny is, in the case of your German VPN connection, that the Australia to England part of the route does not appear to do anything. It is very probable that the data connection into Germany is going through a very different route. From the Australian network configuration, there should not be any difference.
In your case, I think the reason for the difference in ping times is in Europe. The German VPN provider was willing to pay more to get better global network bandwidth as the network provider for your game server. This is the most likely reason why can it avoid the delay between Australia and England.
The Finnish VPN provider could not do that. The most likely reason, in this case, is that although Finland is a highly developed country in the region, it is probably not as well connected with the global network as Germany is (the Finnish VPN provider had to pay for a narrower bandwidth and is unable to avoid the delay between Australia and England).
Har du noget at tilføje til forklaringen? Ik anyik notk not notikkkkkk not not noting notkfikik not any anyik any for anyik notikikinging not Vil du læse flere svar fra andre tech-savvy Stack Exchange brugere? Tjek den fulde diskussionstråd her.
Anbefalede:
Hvorfor er størrelsen på min mail større end dens vedhæftede filer?
Hvis du bruger en lokalt installeret mailklient, har du muligvis bemærket, at størrelsen på en email synes at være lidt større end de filer, du har knyttet til den. Hvorfor er det og er det en grund til bekymring? Dagens SuperUser Q & A-indlæg har svaret på en forvirret læsers spørgsmål.
Hvorfor kan jeg styre min Blu-ray-afspiller med min fjernbetjening, men ikke min kabelboks?
Hvis du har et nyere HDTV-sæt, har du muligvis bemærket, at fjernsynets fjernbetjening kan fungere som en universel fjernbetjening af forskellige slags (men det virker ikke sammen med alle dine enheder). Læs videre, da vi undersøger, hvordan nyere tv-apparater kan styre de enheder, der er forbundet med dem (og omvendt).
Hvorfor er seriel dataoverførsel hurtigere end parallel dataoverførsel?
SATA-harddiskforbindelser er hurtigere end ældre PATA-harddiskforbindelser, og det samme kan siges for eksterne kablingsstandarder, men det er mod-intuitivt: hvorfor ville ikke paralleloverførslen være hurtigere?
Hvorfor de fleste webtjenester ikke bruger end-to-end-kryptering
Nylige åbenbaringer om regeringsovervågning har rejst spørgsmålet: Hvorfor krypterer ikke cloud services dine data? Nå krypterer de generelt dine data, men de har nøglen, så de kan dekryptere det, når de vil.
Hvorfor er Googles søgeresultater hurtigere end lokale harddiskforespørgsler?
Dagens Spørgsmål & Svar session kommer til os med venlig hilsen af SuperUser-en underafdeling af Stack Exchange, en community-driven gruppe af Q & A-websteder.