[outages] flapping issues reaching East Coast AWS

[William Kern]

also to forgot to mention that DownDetector is showing an increase in 
Frontier complaints.


On 7/31/23 12:22 PM, William Kern via Outages wrote:
> We have seen flapping all morning reaching our AWS East Coast servers 
> from our Thousand Oaks location. They drop off for a minute or so and 
> then come back.
>
> It seems to occur at 3-5 minute intervals for several cycles, then 
> everything is fine for 30 minutes or so. Then the alarms start to come 
> in again so wash rinse and repeat.
>
> The issue is definately not local, as our local monitoring to our peer 
> connections are fine as are our connections to AWS WestCoast servers. 
> The only complaint I got so far was from a customer on the East cost 
> trying to VPN to a server here and getting booted out a lot.
>
> Traceroutes imply there may be an issue with Frontier as the few times 
> I have caught the problem while logged into the remote East Coast 
> server the path outbound from AWS East goes to Dallas and then seems 
> to have issue reaching Los Angeles. I also show those traceroute pages 
> moving around a bit between those locations.
>
> The connection from here to the the East Cost show weirdness involving 
> Charter so maybe the issue is on the reverse trip.
>
> this is pretty typical.
>
>  8  lag-401.dllstx976iw-bcr00.netops.charter.com (66.109.5.229) 36.002 
> ms  36.316 ms lag-16.dllstx976iw-bcr00.netops.charter.com 
> (66.109.6.1)  36.451 ms
>  9  lag-0.pr3.dfw10.netops.charter.com (66.109.5.121)  39.187 ms 
> lag-302.pr3.dfw10.netops.charter.com (209.18.43.77)  42.279 ms 45.338 ms
> 10  99.83.71.242 (99.83.71.242)  35.427 ms 99.83.71.240 
> (99.83.71.240)  36.389 ms 99.82.176.170 (99.82.176.170)  35.339 ms
> 11  * 150.222.206.169 (150.222.206.169)  34.071 ms *
> 12  * * 15.230.48.42 (15.230.48.42)  33.717 ms
>
> Finally its not within AWS as our WestCoast servers can maintain a 
> steady ping with the affected East Coast sites.
>
> So is anyone else seeing weirdness on cross country trips?
>
>
> William Kern
>
> PixelGate
>
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