2017-10-09 GnuCash IRC logs
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09:29:25 <warlord> jralls: FYI, I found https://gist.github.com/rolandshoemaker/522b230efaa5eac9e53e which might help me, too
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12:54:06 <warlord> Okay, backup router is configured; just need to put it back into service.
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13:38:48 <warlord> OKay, about to swap routers. Let's see what happens.
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13:45:06 <warlord> Okay new (old) router in place. So far it does not look like it's solving the issue.
13:47:31 <jralls> warlord: :-(
13:47:52 <warlord> I'm not surprised.
13:47:57 <warlord> I still think it's the modem.
13:48:07 <warlord> I just need to figure out how to reproduce the problem on my own.
13:49:32 <jralls> warlord: Now perhaps test through the router at code with one of the stress tools. If that doesn't replicate the problem then it must be AT&T and we need to figure out a test to demonstrate the problem to their tech.
13:50:52 <warlord> jralls: I'm not sure how to replicate the problem locally when the problem always appears to be packet delay starting at the modem.
13:51:32 <jralls> Replace the modem with your laptop.
13:51:52 <warlord> I'm not sure what that means
13:52:08 <jralls> IOW connect the laptop to the router's wan port, leaving the other side of the router as usual.
13:52:32 <warlord> i'm not sure how that would help..
13:53:48 <jralls> If stressing the network from the laptop replicates the latency problem then it's not AT&T's fault. If it doesn't replicate then it probably is on AT&T.
13:54:45 <warlord> I'm not sure how to replicate the issue from a laptop on that side. I don't know how to make the laptop generate expected traffic into my network.
13:54:46 <jralls> In that case AT&T needs to nominate a test host on their network that you can run the stress test on to demonstrate to their tech that it's their problem.
13:55:19 <jralls> curl-loader or something similar should do.
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13:56:26 <jralls> It seems unlikely that you're seeing more than a couple thousand simultaneous connectiong to code.
13:59:02 <warlord> True. But it's not all TCP connections. And even so, I'm not sure how to see the problem when, really, the issue appears as a delay at the modem. If I disconnect the modem of course I wont see a delay.
13:59:05 <jralls> Hmm, I just had another thought: Both code and FBN connect through tunnels, right?
13:59:26 <warlord> yes, As do all my servers.
13:59:36 <jralls> Well, if you disconnect the modem you won't see any traffic, either.
13:59:45 <warlord> True.
14:00:35 <jralls> So here's another thought: Shut down code and FDN and I can run a stress program against one of the other servers that doesn't normally cause the problem.
14:01:29 <warlord> We could do that..
14:02:05 <jralls> If that does cause the problem then you'll have more reason to believe that the laptop inside of the modem is a fair test.
14:02:54 <warlord> Let me know when you're ready to run the test. I suppose we could use my mail server (which is still on my old VM infrastructure, but still behind my tunnel)
14:04:18 <warlord> Should I put my old router back in place or keep this one?
14:10:36 <warlord> I just put my old on back in
14:13:17 <jralls> OK. I don't think it will matter. It'll take a few minutes for me to build curl-loader as long as I don't have to hack anything.
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14:19:49 <warlord> Okay, edgerouter is back in place, mikrotik was still upgraded for "later"
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14:21:11 <warlord> jralls: let me know when you want to test this -- I can turn off fbn and code..
14:21:27 <jralls> OK.
14:22:33 <warlord> You ready now?
14:24:56 <jralls> No, I just started the build.
14:25:22 <warlord> Ah, okay. I turned off FBN. Let me know when you're ready and I'll turn off code.
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14:32:36 <warlord> jralls: may I turn off code now, or do you want me to wait until you're ready?
14:32:47 <warlord> (That would give me time to gather a baseline)
14:33:57 <jralls> warlord: You can shut it down if you like. I don't need it right now...
14:34:16 <warlord> okay. thanks.
14:34:19 <warlord> it's going down now.
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15:30:21 <warlord> I wonder if the modem is somehow being unhappy with heavy tunnel usage?
15:33:33 <jralls> Why would it care?
15:33:43 <warlord> Who knows?
15:34:58 <warlord> I just can't see what else would be causing this.. Clearly lots of connections (across a tunnel) are causing the modem to misbehave. At least I THINK it's the modem.
15:37:13 <jralls> What are the endpoints of the tunnels? Are they encrypted?
15:38:05 <jralls> Plugging the laptop directly into the modem would be without the tunnel, right?
15:38:49 <warlord> One endpoint is my edgerouter. The other is endpoints are a) Hurricane Electric, and b) CBC. They are not encrypted.
15:39:18 <warlord> Yes, plugging the laptop directly into the arris would bypass the tunnels. We would have to use one of my /29 addresses.
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16:28:38 <warlord> jralls: so I have httpd set up on my laptop, and the firewall should be unblocked. But my kids are streaming TV so I can't really disconnect my network right now to run the tests. I suppose I could just turn off fbn and code again as the baseline?
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16:31:00 <jralls> warlord: Yes, you could, but if the test jams up your net it'll mess up the kida's show.
16:32:03 <warlord> The streaming still seems to work okay. It's not limiting my bandwidth, just adding jitter and delay.
16:32:18 <warlord> I'm still able to pull 40mbps down even when the network is "loaded"
16:34:51 <warlord> But it means I can't just disconnect my network ...
16:37:51 <warlord> Hmm.. My Arris is reporting 129,101 IPv4 "Receive Drops"
16:41:28 <warlord> Now up to 129,463
16:45:10 <jralls> Well, it won't rule out the router, but if you connect the laptop to the inside of the router and configure the router to send http requests to it then I could try flooding that. That might tell us if the tunnels have anything to do with anything.
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16:52:17 <warlord> jralls: okay, I am connected to the Arris directly. Let me turn off FBN and Code for a baseline and then have you test against my laptop?
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