#arpnetworks/ 2015-06-04,Thu

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WhoWhatWhen
mercutiogoogle foo is quite the art. [00:06]
brycecIt is. I consider myself quite good, which isn't very humble but it is apparently the case comparing my searches with others' ability to find relevant information quickly. [00:07]
mercutioi consider myself quite bad, but i see people doing much worse than me :)
my problem is coming up with things that will uniquely anchor down on the information i want
i often end up with a lot of irrelevant stuff
often i give up on things i'm only casually interested in.
[00:07]
brycecThat's exactly what I'm expert at - boiling it down to the key and unique facts. Works out in the real world too.
I think it's just how the brain is wired
[00:09]
mercutiolike my friend upgraded his comcast connection speed, and my thinking is the modem tftp's a new config file for the higher speed; it seemed to only get half-upgraded. so i was curious about how the tftp system from the modem works..
but i found things about how to hack cable to get faster speeds from years back etc.
[00:09]
brycecheh, I remember that stuff :) [00:10]
mercutioi remember being slightly interested in that stuff before, it was curious that you could get higher speeds by tftping your own config. [00:10]
brycecAnd a lot of it is somewhat applicable... though Cable operators have tightened it down with config signing and the like. [00:10]
mercutiobut i wanted to find the legit way it worked, wondering if it was overnight for upgrades or what. [00:10]
bryceclike http://www.dslreports.com/faq/cabletech/5._Cable_Modems ?
(first result for HFC provisioning)
brycec can tell you much more too, lots of experience
[00:11]
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mercutiohmm it deosn't say anything about the upgrade process.
do you happen to know about that brycec?
[00:27]
brycecheh I only skimmed the faq
http://www.incognito.com/wp-content/uploads/device-provisioning-in-cable-environments.pdf gets into a bit more detail of the process
but still relatively high-level and easy to understand.
[00:28]
mercutioeveryone knows blackblaze's hard-drive reliability testing isn't reliable.
but does anyone have any good source for hard-drive reliability by model?
[00:30]
brycechttp://www.cisco.com/c/en/us/td/docs/ios/cable/configuration/guide/12_2sc/Cisco_CMTS_Router_Services/cmts_svcs_cnr.pdf will give you a bit more detail, at least as it pertains to configuration Cisco's headends, but the core information is the same across HFC.
(both results from the first page of "hfc provisioning tftp")
I can also confirm http://volpefirm.com/docsis101_modem-registration/ is valid, and has flow charts (and pop-in ads)
So that's how cable modems are configured... Whether *that* is what controls connection speed is a different story.
In the "early days" of cable modems, cable TV providers were new at the ISP game, were bad at QoS and fair-use, left most of the network *wide* open (yes, you could Samba fileshare with your neighbours! or, you could just scan their computers and steal their music), and for simplicity most seemed to use the modem's provisioning for speed control.
[00:31]
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brycecThey've learned since then, slowly, and speed is no longer solely controlled by the modem's provisioning (if at all). The sync speed, number of channels to establish (and allowed to establish), as well as any burst/throttling rules can (and typically are) be enforced by the headend.
(The headend is basically the other modem at the end of the cable modem connection, for the unitiated.)
[00:36]
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mercutiobrycec: yeh i suspect he hasn't had his number of channels raised.
because download speed went up a bit, but not all the way..
and upload speed is still the same.
[01:07]
brycecCould also be limited by what his modem is capable of [01:07]
mercutioand his modem was already docsis 3.
yeah his modem is on the list for plan speed.
[01:07]
brycecI've seen plenty of 4/4 modems
Heh then yeah it should support it.
[01:07]
mercutiothis is 8 [01:08]
brycecGood. (Mine is too :) )
*8/4)
[01:08]
mercutioit said up to 300 megabit or something [01:08]
brycec(which is just quoting Docsis3 IIRC :p) [01:08]
mercutioheh
docsis 3.1 is meant to give some more improvements.
[01:08]
brycec(Thank you Wikipedia for breaking it down - yep, to reach 300mbps requires 8 channels, so if his says it can do that...) [01:11]
mercutiohe's getting like 90 megabit
on 150 plan
maybe that's 3 channels?
[01:11]
brycecOr his node is congested... [01:12]
mercutioit's consistent though [01:12]
brycechttp://speedtest.comcast.net/ is handy (if he's on Comcast) [01:12]
mercutiomore channels should still help if it's congested. [01:12]
brycecIf that isn't your plan speed (consistently), then you get to bitch at Comcast :) [01:12]
mercutioyeah [01:13]
brycec(whereas if you take speedtest.net to them, they laugh and point at the fine print) [01:13]
mercutioi've had no experience at such
but from what i read, it doesn't sound like much fun.
[01:13]
brycecDumb question - does he have >100mbps from computer to modem? [01:13]
mercutioyeh [01:14]
brycec(eg: no wifi, etc) [01:14]
mercutiowell it's also uploading at 6 megabit [01:14]
brycecwhich is way less than 1 channel upload ;) [01:14]
mercutioyou know, his 25 megabit plan went at 30 megabit [01:14]
brycecso that makes it sound like the problem is on his side
brycec blames wifi
[01:14]
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mercutioso if he was on 50 megabit plan it'd probably go at 60 megabit [01:15]
brycec(and the defacto test: plug a laptop directly into the modem and test) [01:15]
mercutioso 150 would go at 180 megabit [01:15]
brycecheh [01:15]
mercutioso it's going at half the speed
btu maybe they triple osmething to go from 50 to 150...
and thoght he was on 50... when he was on 25.
[01:15]
brycecSometimes I seriously consider running cable to my cable modem... it sucks that I'm limited to 100mbps (out of 120) because of the moca adapters [01:16]
mercutio100 megabit can be faster than gigabit. [01:16]
brycec(but then again, I'm happy enough with 100... that's just plain blazin to me) [01:17]
mercutiobasically 100 megabit with serialisation delay can mean that you hit real 100 megabit better/easier/more consistently
whereas when it hits gigabit it can think your line speed is faster and drop stuff
it depends if there are lame policers and a higher link speed or not.
there's new fibre stuff here and they have god-awful policers.
and it means international speed can be bad with some providers.
[01:17]
brycecHm good points [01:18]
mercutiowhereas national will "speed test" fine to a close location.
it's complicated, because you need really good granuality to deal with the strict policer.
from what i've heard linux's isn't very good for it.
i think linux operates per msec.
so if you have 200 megabit... that's 24000k, and 24000/1000 is 24k...
so sending 24k at a time is bad...
i wonder what their burst is set to, maybe 3k or something stupid :/
also linux doesn't offically support HZ > 1000
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mnathani_anyone build a hackintosh machine in here? [14:42]
mercutioi have
i stopped using it after getting it going basically though
i did two of them even
i used the first one for a bit longer..
i have been wondering about doing another, because i have a spare monitor, and synergy supports os x..
the first time around i went with name brand hardware so that i'd know it'd easily install, but it was kind of sluggish.
the second time i did old p67 board with ati video
[14:51]
brycecI ended up just running OSX in VM as needed (or on the one mac I have) [15:02]
...... (idle for 25mn)
mercutiomy mac didn't work with current software
because it was g4
[15:27]
bryceclol yeah, support for macppc was dropped years ago ;) [15:28]
mercutioit was years ago i did it
2010 i think
[15:28]
brycecMy G4s are from 2003 and 2001 :D
(er, 2000)
[15:29]
mnathani_I used to own a macbook pro
and also a mac mini
but no longer
[15:29]
BryceBotThat's what she said!! [15:29]
mercutiothis was mac mini g4 [15:29]
mnathani_BryceBot: no [15:29]
BryceBotOh, okay... I'm sorry. 'but no longer' [15:29]
mnathani_my Mac Mini was intel
probably ran windows on it for the most part using bootcamp
[15:29]
brycecbrycec has owned both intel and g4 mac minis [15:30]
mercutiomine struggled with 1920x1200 [15:30]
mnathani_@google time in auckland [15:31]
BryceBot8,680,000 total results returned for 'time in auckland', here's 3
Current local time in Auckland, New Zealand (http://www.timeanddate.com/worldclock/new-zealand/auckland) Find out current local time in New Zealand – Auckland. Get Auckland's weather and area codes, time zone and DST. Explore Auckland's sunrise and sunset, ...
Current time in Auckland, New Zealand - daylight savings time 2015 ... (http://24timezones.com/world_directory/current_auckland_time.php) Auckland current time in Auckland, New Zealand daylight time change date 2015 Auckland world clock.
14 day extended forecast for Auckland, New Zealand (http://www.timeanddate.com/weather/new-zealand/auckland) Current weather in Auckland, New Zealand and forecast for today, tomorrow, and next 14 days. ... Current Time: Jun 5, 2015 at 2:19:25 AM. Latest Report: Jun 5, ...
[15:31]
mnathani_@wa time in auckland [15:31]
BryceBotcurrent time in Auckland, New Zealand;10:29:43 am NZST -> Friday, June 5, 2015;Auckland, New Zealand, , 10:29:43 am NZST, Friday, June 5;10:29:43 pm GMT -> Thursday June 4, 2015 [15:31]
mnathani_16 hours ahead of eastern ? [15:32]
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mercutioyeah
but i call it -8/-5
plus a day
it's just easier to change by 5 or 8 hours
so it's 10:46 am here, 15:46 am west coast, 18:46 east coast.
well 3:46 pm :)
[15:47]
brycecLOL "15:46 am" [15:50]
mercutiowell i think 15:46 am makes sense at least :)
oh it doesn't
it means before noon :)
i think of it as after midnight :)
whenever i go between morning / afternoon i tend to use 24 hour time, but if it's before i say am so it's known that it's morning
[15:53]
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mnathani@google nba [20:21]
BryceBot52,700,000 total results returned for 'nba', here's 3
NBA - National Basketball Association Teams, Scores, Stats, News ... (http://espn.go.com/nba/) Get the latest NBA basketball news, scores, stats, standings, fantasy games, and more from ESPN.
NBA Give 'n Go - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/NBA_Give_'n_Go) NBA Give 'N Go is a 1995 Super Nintendo Entertainment System basketball video game that uses licensed teams from the National Basketball Association.
NBA Basketball Scores - NBA Scoreboard - ESPN (http://espn.go.com/nba/scoreboard) Adam Silver says NBA's injury data isn't showing this season was worse than last season but admits dataset doesn't go back far historically. 6m ...
[20:21]
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mnathani_my route to arp has changed
presently it is only 9 hops
via gtt
used to be more hops via he.net
[22:04]
mercutiohops isn't everything
gtt may have removed an ASN in their path
it's nlayer/tinet/gtt/mzima etc
[22:15]
mnathani_http://imgur.com/OPJJ5cz
this is why you don't use Windows to run your ATMS Royal Bank!
[22:16]
mercutionice and cryptic
what's with the funny lookng guy
is that postman pat?
[22:17]
brycecIt's RBC's character
Just a dumb avatar
[22:18]
mercutiowho just happens to look like postman pat? [22:18]
brycecI wouldn't know. [22:19]
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mnathani_is network manager supposed to be straightforward?
I am having issues connecting to wifi using arch / kde / networkmanager
command line wifi-menu worked just fine though
[22:38]
mercutiojust use command line
i use wictl
or whatever
wlctl?
the "other" one
[22:41]
brycecmercutio: wicd?
(which has wicd-gtk, I might add)
NM was straight-forward for me. Install, enable systemd service, and launch nm-applet
[22:42]
mnathani_what desktop environment brycec? [22:44]
brycecAwesome
(Which is technically a WM, not a DE, I know)
[22:44]
mercutiothat could be it
i was only using it to play with
i normally configure netowrk stuff manually
[22:44]
mnathani_I hate it when a reboot fixes an issue [22:46]
mercutiosame [22:46]
mnathani_specifically on linux [22:46]
mercutioi try to figure otu what's happening first [22:46]
mnathani_only kernel updates should need a reboot [22:46]
mercutioi hardly ever find rebooting fixes an issue [22:46]
bryceclol mnathani_ [22:46]
mercutiohere people always to turn your rouuter on/off
when it never helps
and often means you get net back slower
mnathani_: 4.1 is fixing that
[22:46]
brycec(Or changes to the system's init - that would also sorta require a reboot, barring kexec juggling) [22:47]
mercutiorebootless patching
it's going to be supported long term by someone called ltsi
long term support initiative?
a lot of windows people have a strong mantra about rebooting
web server isn't responding, reboot!
[22:47]
brycecMany times a reboot is the simplest/quickest resolution, especially when you're trying to guide someone else through it [22:48]
mercutioit means you can't stop it happening again
it used to be kind of useful when swapping hard
but that doesn't really happen anymore.
[22:51]
brycecI'm just speaking from experience as a level 1 tech - wasn't scripted or anything, but it was known that if you can't fix the issue quick (and depending on the customer's disposition), you fall back to a reboot and hope that fixes it. The customer doesn't usually care about the "why" they just want to be fixed and running again. [22:55]
mercutioyeh it did used to help a bit
on 4mb, 8mb etc routers which would have processes die
or hit memory limits on nat connections or such
i haven't found it necesary in ages though
[22:58]

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