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[CA] Horrible latency at nightLooks like I'm getting node saturation again in my area.
Signals are well in line. Speeds are around 60-80mbps, even though I'm on ultimate. During the day on weekends I get my rated speeds and latency is perfect.
As soon as it's after 5PM it gets quite atrocious.
There is nothing running in the background and there is no one else on the network.
|---------------------------------------------------------------------------------- --------|
| WinMTR statistics |
| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |
|------------------------------------------------|------|------|------|------|------|------|
| router.asus.com - 0 | 208 | 208 | 0 | 0 | 1 | 0 |
| 10.72.64.1 - 0 | 208 | 208 | 8 | 34 | 179 | 11 |
| ip68-4-12-114.oc.oc.cox.net - 0 | 208 | 208 | 10 | 34 | 176 | 16 |
| ip68-4-11-70.oc.oc.cox.net - 0 | 208 | 208 | 10 | 40 | 187 | 15 |
| mtc1bbrj01-ge710.rd.om.cox.net - 0 | 208 | 208 | 22 | 52 | 190 | 36 |
| langbbrj01-ge050000804.r2.la.cox.net - 0 | 208 | 208 | 12 | 41 | 188 | 14 |
| 216.239.46.40 - 19 | 120 | 98 | 0 | 38 | 156 | 129 |
| 216.239.43.148 - 0 | 208 | 208 | 12 | 40 | 189 | 13 |
| lax04s09-in-f6.1e100.net - 0 | 208 | 208 | 11 | 39 | 184 | 18 |
|________________________________________________|______|______|______|______|______|______|
WinMTR v0.92 GPL V2 by Appnor MSP - Fully Managed Hosting & Cloud Provider |
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 dvd536as Mr. Pink as they come
Premium Member
join:2001-04-27
Phoenix, AZ |
dvd536
Premium Member
2014-Oct-22 5:33 am
serving size doubled. size of pie didn't. 5PM is dinnertime. simple math
until cox puts out two pies at dinnertime[splits node or lights up more channels] issue will continue. |
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 odogMinister of internet doohickies
Premium Member
join:2001-08-05
Atlanta, GA |
to cookiesowns
You appear to have 39ms avg latency?
How are you connected to the modem? Do you have a router, are you using wireless? Is there anyone else in the house using the internet? |
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to cookiesowns
Do you have a tracert showing the latency? 39ms to get out of Cox network is not that bad. What are you expecting? |
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It's not the latency, it's the jitter. Look at the "worst"
Prior to any issues, my max worst case jitter is no more than 20-30MS.
Typically I get 15MS to google. This is terrible. |
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| cookiesowns |
to odog
Read the Post!
This is through a router, no this is not wireless. Router is RT-AC68U.
No one else is on the network. |
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odogMinister of internet doohickies
Premium Member
join:2001-08-05
Atlanta, GA Nokia BGW320-505
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to cookiesowns
Just for diagnosis pull the router out and do concurrent pings to each successive hop. open up a couple command prompts with
router
ping router.asus.com -t
inside of CMTS
ping 10.72.64.1 -t
last hop on the cox network
ping langbbrj01-ge050000804.r2.la.cox.net -t
google
ping google.com -t
watch for the latency and see which points reflect the latency spike/jitter, and which don't.
Troubleshooting this kind of thing is mostly an exercise in isolation. Most of my questions and suggestions revolved around that.
Just to make sure, what kind of modem do you have? I suspect D3, but need to verify. (As Kent would say, always check your optics.) |
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It's doubtful it's the router.
I have a SB6141. 1st hop has jitter. The jitter is about the same as second hop. Issue points to saturated node, as my download speeds tank quite a bit.
It's odd however, I can slightly get the jitter to be less by activating a few download threads at about 2-5MB/s, which raises latency but reduces jitter.
Maybe something to do with powerboost and the slices I'm being allocated, thus again pointing to node saturation? |
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Sounds like you already have your mind made up what the problem is. If it is node saturation, then there isn't much you can do. 2nd hop can be any issue from the WAN port on your router, modem, ethernet, problem with modem, signal issue with modem, problem in area, etc. If your looking to troubleshoot, it helps to isolate. |
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odogMinister of internet doohickies
Premium Member
join:2001-08-05
Atlanta, GA Nokia BGW320-505
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to cookiesowns
said by cookiesowns:It's doubtful it's the router.
I have a SB6141. 1st hop has jitter. The jitter is about the same as second hop. Issue points to saturated node, as my download speeds tank quite a bit.
It's odd however, I can slightly get the jitter to be less by activating a few download threads at about 2-5MB/s, which raises latency but reduces jitter.
Maybe something to do with powerboost and the slices I'm being allocated, thus again pointing to node saturation? If you have the router in line, the first hop is the router. In that case the second hop is the CMTS. it is also a bit counter intuitive that running a minimal download reduces jitter at the expense of overall latency. That makes me think some sort of QOS or ACK suppression technology is kicking in. Either way PM your modem MAC and I can take a look. |
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By first hop, I meant first hop outside of my LAN.
So yes, CMTS. I have suspected QoS, but I verified all of my settings, so it's none of that at least on my end. I'll send you a PM tonight with my mac. |
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 NormanSI gave her time to steal my mind away
MVM
join:2001-02-14
San Jose, CA |
to Hard Harry7
His WinMTR shows what you request; but he needs to use code tags to make the result easier to read. |
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1 edit |
Plugged straight into PC with CAT6, same issue as suspected. No change there.
ODOG apparently swapped my downstream bonding groups, but the problem was still there.
I think the issue is due to upstream saturation or noise. Potentially a device that's only fired at evenings and weekends from neighbors.
12:30AM PST. Pings and speeds are normal. Definitely node saturation of some sort. |
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| cookiesowns |
Well... With the new upgrades, node saturation is actually worse now ( SURPRISE NOT ). Unable to push more than 60-80mbps. Latencies still spike, but not nearly as bad before. » www.speedtest.net/my-res ··· 66693973( Afternoon when upgrade first hit ) ( Same night ) » www.speedtest.net/my-res ··· 67292441Upstreams take a hit also, but not showing in speedtest. Monitoring during the upstream test, I will see very inconsistent speeds. |
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