nanog mailing list archives
Re: CenturyLink Fiber Latency Issues (Seattle, WA)
From: Tim Burke <tim () mid net>
Date: Mon, 8 Nov 2021 16:35:05 +0000
Agreed with this... if anything, all of the repeated abuse causing poor performance for neighbors could eventually result in termination of service. I'm sure CenturyLink would love to sell OP a DIA that they can use to run Tor and P2P to their heart's content. ________________________________ From: NANOG <nanog-bounces+tim=mid.net () nanog org> on behalf of Eric Kuhnke <eric.kuhnke () gmail com> Sent: Saturday, November 6, 2021 1:19:17 PM To: Neel Chauhan; nanog () nanog org list Subject: Re: CenturyLink Fiber Latency Issues (Seattle, WA) Respectfully, if you start broaching topics like suing your residential ISP because a "best effort" no SLA last mile GPON service doesn't meet the same performance as a 1GbE active-E symmetric 1310/LR hand off for a server in a datacenter, the most likely thing you're going to get is dropped by the ISP entirely. I know that's what I would recommend if I were your ISP and you threatened lawsuits at my customer service representatives. "Sorry, but as of $DATE_30_DAYS_IN_FUTURE we will no longer be able to meet your needs and will discontinue service and billing for $YOUR_ACCOUNT_NUMBER". On Thu, Nov 4, 2021 at 2:59 PM Neel Chauhan <neel () neelc org<mailto:neel () neelc org>> wrote: My OPNsense box has a really large NAT table, more than there are IPv4 ports, presumably due to the way FreeBSD's pf works. CenturyLink's routers are worse in this regard since NAT tables are small. Even if I were to run Tor on my CenturyLink connection, my neighbors are affected as well. When I was running Tor at "full speed" with these spikes, neighbors had truck rolls. I have ordered Verizon "LTE Home" as a temporary "workaround", namely to move my Wi-Fi traffic to it while I restart Tor. The reason for this is to force neighbors to put in repair tickets to force a GPON capacity increase. It's not nice to my neighbors, but I don't **realy** have another option (even running Tor I don't want to make it too unbearablel for neighbors). Maybe the other options are to (a) pay $329/mo for Comcast Gigabit Pro and get stuck in a 2-year contract and a steep install fee or (b) litigate that I could lose since I'm not a lawyer and don't have a J.D. from Harvard Law School specializing in telecom law, both which are impractical and expensive. I was about to sue CenturyLink in small claims, but instead decided to get Verizon LTE Home for 2 months while CenturyLink "fixes" their fiber network while restarting Tor there. Have the neighbors put in service requests to force CL to fix their network, but don't put in a request myself so the "solution" won't be to blame me. While I may have to worry about an ETF with LTE Home, it's cheaper than Gigabit Pro, and of $300 for two months including ETF is still cheaper than $329/mo for two years. It's a gamble but may pay off. -Neel On 2021-11-03 07:00, TJ Trout wrote:
I second this, most best effort Broadband cpe equipment will choke with lots of concurrent connections On Tue, Nov 2, 2021, 8:25 PM P C <pc50000 () gmail com<mailto:pc50000 () gmail com>> wrote:If this is connection count related only, It is most likely an issue with the CPE (router), NAT table, or similar. On Tue, Nov 2, 2021 at 8:21 AM Neel Chauhan <neel () neelc org<mailto:neel () neelc org>> wrote:I tried that back in September, it didn't work. It doesn't happen on my hop but the one after that. Even a second GPON connection shows the issues if one is running the offending traffic. The issue occurs even if I'm using 50 Mbps out of my 940. It may be bufferbloat on CL's side but they keep denying the issue. I guess I'll have to break the bank and get Comcast Gigabit Pro. CenturyLink should just get bought out by another telco, like how Cablevision got bought by Altice. -Neel On 2021-11-01 20:52, Ryan Hamel wrote:Neel, Sounds like buffer bloat. Run a speed test, whatever is your maximum for your download anduploadtake 10% away from it, and setup traffic shaping in OPNsense (https://docs.opnsense.org/manual/shaping.html) with thosevalues. Ifthe issue goes away, then you're exceeding the buffer ofCenturyLink'sdevice with the bursts of traffic. Ryan -----Original Message----- From: NANOG <nanog-bounces+ryan=rkhtech.org () nanog org<mailto:rkhtech.org () nanog org>> On BehalfOfNeel Chauhan Sent: Monday, November 1, 2021 6:44 PM To: nanog () nanog org<mailto:nanog () nanog org> Subject: CenturyLink Fiber Latency Issues (Seattle, WA) Hi NANOG Mailing List, I don't know if any of you work at CenturyLink/Lumen, very lessontheir Fiber network in Seattle, WA. However, here's my story. If I attempt to run certain applications that use 1000, or 10000TCPconnections, I get latency spikes. It is based on how manyconnections,but also how much bandwidth is used. This means certain things likeTorrelays are off limits to me (which I wish to run). On an idle connection, the PingPlotter outputs look like this: https://centurylinklatencyissues.com/image-000.png If I attempt to run BitTorrent with 1000 connections in Deluge, PingPlotter looks like this: https://centurylinklatencyissues.com/image-002.png Getting support, or even executive contacts to admit the issuehasn'tworked. They all love to blame my equipment or applications,when CLrouters also show the issue when I run the same things whereas my sameexactOPNsense box on Google Fiber Webpass running Tor at anotheraddress hadno issues whatsoever, and I can ping other Tor relays onCenturyLink AS209just fine (from a VPS). The most competent person I dealt with was actually one tech. Hetoldme there was "capacity issues" in our neighborhood, and that's thereasonfor the issues. However, nothing was done about it afterwards, I'mguessingsince I turned off my Tor relay after the visit to avoidcomplaintsfrom family members. On an AT&T forum, people have said GPON gives latencyspikes/packetloss on congestion:https://www.dslreports.com/forum/r33242889-How-rare-is-GPON-XGSPON-saturation The capacity managers in Seattle are literally dragging theirfeet:it's 100x worse than AT&T's 802.1X. I know AT&T and CenturyLink don'tcompete, but if I had to choose between AT&T Fiber and CenturyLink, I'lltakeAT&T in a heartbeat, no ifs, no buts, even if I have to use AT&T'scrappyrouter instead of my OPNsense box. Going back, do any of you who work at CenturyLink/Lumen can getme tothe right people, hopefully the capacity managers in Seattle? I could go with Comcast, but it's either (a) 35 Mbps uploads or(b)$329/mo for "Gigabit Pro" with a 2-year contract and a steep installfee. I amseriously considering Gigabit Pro even if it breaks the bank,but hopeI won't have to go there. I don't need 2 Gbps and would rather pay $65 than $329. 300-500Mbpsuploads when I need it is the sweet spot for me (even without Tor) whichCLGPON should easily handle without a sweat. I also don't exactly **trust** Comcast, they're a horrible company in many metrics,but insome ways Comcast is more competent than CenturyLink. Best, Neel Chauhan
Current thread:
- CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 01)
- RE: CenturyLink Fiber Latency Issues (Seattle, WA) Ryan Hamel (Nov 01)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 02)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 02)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) P C (Nov 02)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) TJ Trout (Nov 03)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 04)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Eric Kuhnke (Nov 06)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Tim Burke (Nov 08)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 08)
- Re: CenturyLink Fiber Latency Issues (Seattle, WA) Neel Chauhan (Nov 02)
- RE: CenturyLink Fiber Latency Issues (Seattle, WA) Ryan Hamel (Nov 01)