High ping because of ISP?
On 1/4/2019 at 11:54 AM, mynameisjuan said:So much wrong information in this thread.
First, forget about DNS, thats not the issue plain and simple. You can use what ever DNS you like with no side effects. Please stop listening to people saying its DNS.
Second, notice hop 5-->6. This jump is from one ISP to the next. This is from Colombia to Miami Florida, thats 2,400Km. This is 10ms absolute minimum before equipment is even involved over fiber. A 30ms jump over a congested undersea cable is 100% fine. This is also seen again from 8 to final destination because its then going up to virginia then all the way to california. Again, normal.
There is nothing wrong with your ping and there is nothing on your end or even your ISP's end that can fix it unless they can make light go faster than the speed of light
Internal routers. Completely normal.
Nope, internal IPs have nothing to do with this problem nor is the "problem" even on this ISP. ISPs can have 10's to 100's of internal routers.
I agree with most of your points here, but I do still think it is something to do with the ISP.
DNS is most definitely not a cause, mainly because after the first DNS request the local machine would cache it. The only problem there would then be if the TTL was very short, which is unlikely unless they are doing load balancing at DNS which is just absurd, so this is a non-issue for sure.
I am in agreement with the fact that the ISP transition is about right with ping, although the cable being used is ARCOS-1 from the look of it, which is a ring network stopping in 24 locations, one of them being Puerto Limon in Costa Rica which is more likely to be the source as opposed to Columbia. The ping looks about right for a ring style network.
The issue lies here in the transition from ARCOS to the next ISP, PCCW Global. For some reason, instead of diverting from Miami to Chicago via Dallas, they are instead sending his traffic on the path Miami -> Seattle -> Chicago (Locale of Riot's DC). This would explain the unusually high ping. This is probably just a routing error in one of the carriers dynamic routing protocols sending him on a roundabout path. It may be fixed eventually.
So in truth here the issue doesn't lie with the ISPs own network but it's peered networks that it relies on.
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