mnathani: up_the_irons: thanks. I just tested it and the mtu is definitely higher than 1500 but its not as high as the other vps. for instance, this ping works with 4000 bytes on both vps but only on kvr29 when I switch it to 8000 bytes
ping6 fe80::21b:21ff:fe93:3e08%eth1 -M do -s 8500 up_the_irons: so 8500 doesn't work on kvr02? mnathani: also, rsync fails, using my kvr02 vps, downloading from the backup server.
does not up_the_irons: hmm.. weird
just checked all int's and they are 9k
maybe it's host related. kvr02 is still a Jaunty node, and kvr29 is Lucid mnathani: ping6 fe80::21b:21ff:fe93:3e08%eth1 -M do -s 4034 << that one works on kvr02
ping6 fe80::21b:21ff:fe93:3e08%eth1 -M do -s 4035 << that one does not
not sure if those values have any significance up_the_irons: not sure mnathani: one of the successful pings: 4042 bytes from fe80::21b:21ff:fe93:3e08: icmp_seq=1 ttl=64 time=0.416 ms hazardous: yall are insane
lol up_the_irons: hazardous: i won't argue that ;)
kvr03 and kvr04 on the chopping block next week hazardous: lol mnathani: anyone seen something like this before: http://imgur.com/DMFrist up_the_irons: http://support.arpnetworks.com/kb/main/ntp-servers
it's official hazardous: are you dropping all ntp traffic at edge or something? mnathani: up_the_irons: mercutio: if the ARP metal port was switched to trunk, would the OS have to be aware of, and support VLan tags? acf_: afaik yes
trunk == uses vlan tags plett: Depending on which vendor's meaning of the word 'trunk' you are using, yes. I would expect the machine to need to be able to cope with 802.1q vlan tags mnathani: Windows would not qualify in this regard, would it plett: As something suitable for use on a server, no :)
Googling for "windows 802.1q" however, says that it is possible, it seems mnathani: essentially, the OS will be performing some of the switching task? mercutio: mnathani: yes acf_: it's like having two NICs afaik mercutio: mnathani: don't worry it's easy
trunk is cisco terminology afaik acf_: yeah plett: There are fancy ethernet cards which the OS can offload the vlan tagging to (and tcp checksumming etc), but they're not common. The OS would probably be handling the tags in software mercutio: it's not really like having two nics, it's like having a subdivided nic
oh it's like two nics when using kvm virtual machine or such acf_: eth0.1
eth0.2 mercutio: if you don't expose the root port to the vm, but instead the vlan's
i call my vlan's things like vlan1705 plett: I call them things like "mgmt" or "diskvlan" mercutio: basically on bsd you just do ifconfig vlan1705 vlandev em0 vlan 1705
and it will create an interface called vlan1705
over em0
plett: most ethernet cards can offload vlan
but it doesn't make any real difference
uhh even cheap realtek do vlan offload afaik
broadcom and intel definitely do plett: Ahh, I didn't know it was common these days. The last time I needed to know about ethernet card specifics, it was still a rare thing mercutio: plett: maybe on 10/100 cards plett: These days all I need to know is that the on-board cards on the servers we buy are good enough for what I need to do :) mercutio: plett: do you use i350s?
i350s can slpit into multiple cards
so you can pass a virtual machine a stub pci device, and it gets it's own queue and bypasses hypervisor plett: Not specifically, but "buy intel" has always been a safe bet when choosing ethernet cards
That's interesting mercutio: you need vt-d support on the motherboard though
i was going ot try it, but i don't haev any spare pci-e x4 or wider slots :(
and yuo can't plug an x4 card into an x1 slot
i've got no idea why plett: So you could pass a 'raw' pci device in to a KVM guest and it would actually be tagged when it reaches the outside world
That would save any virtio overheads mercutio: i dunno about the tagging
i wonder hwo that wroks
i want to try it even more now
but yeah it's more efficient
it's called vmdq often
http://www.intel.com/content/www/us/en/network-adapters/gigabit-network-adapters/io-acceleration-technology-vmdq.html
i should learn to condense my sentences :) ***: dne_ has joined #arpnetworks
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dne_ has joined #arpnetworks brycec: They've become much more common than you may think, fwiw │01:42:03 plett | There are fancy ethernet cards which the OS can offload the vlan tagging to (and tcp checksumming etc), but they're not common. The OS would probably be handling the tags in software ***: dferris has joined #arpnetworks
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ChanServ sets mode: +o toddf CaZe: Wasn't there some gaming NIC that was supposed to reduce latency?
http://en.wikipedia.org/wiki/Killer_NIC BryceBot: Killer NIC :: The Killer NIC (Network Interface Card), from Killer Gaming, is designed to circumvent the Microsoft Windows TCP/IP stack, and handle processing on the card via a dedicated network processor. Most standard network cards are host based, and make use of the primary CPU. The manufacturer claims that the Killer NIC is capable of reducing network latency and lag. The card was first introduced in 2006. Hardware and Models... m0unds: they got bought out by atheros
the nic's performance was pretty well aligned with a good intel nic
they had buggy drivers and software that accompanied the nic, and included weird stuff like host-based qos (qos for apps on a single machine) etc brycec: "bro this is totally going to reduce my gaming lag"
(It was marketed towards gamers, as I recall) m0unds: yep
it's now an onboard option on some "gaming" motherboards brycec: lol
"Anandtech noted that the people who would stand to gain the most benefit from the Killer NIC, the low-end users, would also be the ones least likely to pay $280 for a network card." m0unds: hahahah -: brycec would just pickup a gfx card for that price, or much less. staticsafe: Intel NICs do the job m0unds: yeah, when i replaced my motherboard, i had to find one that had an intel nic and not killer or realtek
that was harder than it should have been ***: wacker has left mercutio: the new intel chips have lower latency than the older ones m0unds: by what, .x number of ms? mercutio: it's about 2/3rd of normal latency i think
but even with default coalescing settings vs tuned ones up_the_irons: mnathani: yes, your OS would need to support VLANs. But, fortunately, they all do.
<sigh...> http://arstechnica.com/security/2014/06/at-least-32000-servers-broadcast-admin-passwords-in-the-clear-advisory-warns/ BryceBot: Ars Technica: "At least 32,000 servers broadcast admin passwords in the clear, advisory warns" m0unds: haha, yeah staticsafe: m0unds: http://www.twitch.tv/inicast Serversmash - Waterson vs Mattherson server smash m0unds: staticsafe: fun
i saw a thing about the ps2 dev team finding a server-side cause of bad hitreg that impacts 20+% of players staticsafe: yeah m0unds: hitreg has been horrrrrrrible for a few months now
my ping to connery is less than 60, and i regularly end up having whole magazines fail to register a single hit, only to die to one huge damage impulse brycec: I've come to hate PlanetSide2 for no other reason than causing me to wonder who's still using+developing the PlayStation2. staticsafe: LOL brycec: Haven't had this issue with any other game either.
Makes me wonder how, with as many games released as there are, only PlanetSide2 stomps over another popular abbreviation m0unds: it's developed by sony too staticsafe: Waterson 48 - 43
damn mercutio: wow up_the_irons
did you check your own servers? i know it's not open to the world, but would be curious if it happening none the less. m0unds: wow, 300+gbps ddos against hong kong's online voting systems yesterday
guess i missed that brycec: @wa time in hong kong BryceBot: current time in Hong Kong;9:34:24 am HKT -> Saturday, June 21, 2014;1:34:24 am GMT -> Saturday June 21, 2014 brycec: m0unds: it's because it hasn't happened yet. m0unds: AAAAAAHHHHH
yesterday, 'murica time
i managed to get someone scheduled to come look at my air conditioner on monday mercutio: m0unds: i thought it blew up? m0unds: compressor surely did brycec: Hence why it needs repair/looking at mercutio: oh right
i forget that it's not like an appliance that it brekas and you just get a new one m0unds: hahaha, yeah mercutio: wel li suppose some people repair fridges. m0unds: well, this is a 4ton (48kbtu) unit mercutio: and they're the most similar appliance
oh brycec: Smaller AC units are more like appliances m0unds: yeah
this cools a whole 2300sq ft dwelling, sans garage mercutio: i hate air conditioning myself
but i don't live in a desert. brycec: But big, house-cooling units are big. Too big to be a simple swap out. m0unds: also unholy expensive when they break mercutio: warranty? m0unds: negative, 8 years old mercutio: damn
good luck :) brycec: "normal" warranties are against defects, not "wear" m0unds: haha, thanks brycec: Have fun, m0unds :) m0unds: yeah, newer units have 10 year warranties if you get them svc'd yearly mercutio: which costs more than getting a new one after 8 years i imagine m0unds: hmmm
nah
haha
$200/yr x 8 years
vs $8000+ for a new unit mercutio: $8000?
wow
that's way more expensive than a heat pump m0unds: yeah, it's old enough to use the phased out barely in production refrigerant
which is ~$120/lb mercutio: and is expensive to run?
can you chaneg to the new coolant?
refrigerant
10+ year old fridges cost way moer to run m0unds: you can, but you lose ~10-15% efficiency and run the risk of further damage mercutio: so i assume it similar
really? m0unds: yeah, because there's no way to guarantee you've evac'd all of the oil and stuff out mercutio: there's two common ones now m0unds: and the oil type used for one type of refrigerant isn't the same as what's used with the other mercutio: r134a is one? m0unds: in smaller units, like cars and fridges mercutio: oh right
so it's different m0unds: this is R-22 (old) and R-410a (new) mercutio: r22 was in fridges? m0unds: no idea
it's in my air conditioning system
hahaha mercutio: oh r12 was i think m0unds: yeah, and old cars
my refrigerator is 134a iirc
it's a couple years old
hah, that's a ridiculous number of dead TR mercutio: my fridge uses r600a staticsafe: dat save by waterson m0unds: yeah
i hate the octagon mercutio: blow it up then? (jk) m0unds: wish i could mercutio: you should be careful about saying stuff like that
someone got into mega trouble by saying something about wanting to blow up in airport after his plane was severely delayed on twitter
and itw as taken out of context etc. m0unds: because the NSA might misconstrue saying i want to blow up a fictional facility in a video game as intent to commit terrorist acts? mercutio: oh?
oh is that fictional?
there's a oplitical place in this country with that name
so i thought it may be in other places too
well it's the city centre of one of the citys here
http://www.bbc.com/news/uk-england-18607798
ahh this is what iw as thinking of m0unds: http://i307.photobucket.com/albums/nn320/vulgarman/map%20stuff/PS2/octagon.jpg mercutio: ahh
why is it upside down? m0unds: couldn't tell you staticsafe: :( waterson lost m0unds: womp womp staticsafe: m0unds: OMG
miscalc m0unds: hahahah
wow staticsafe: FUCK YES m0unds: winnars staticsafe: gg, won by one point ***: acf_ has quit IRC (Ping timeout: 255 seconds)
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acf_ has joined #arpnetworks up_the_irons: mercutio: yeah some servers are vulnerable, but all our IPMI stuff is behind a VPN, so at least that is there. I also blocked that port today, so hopefully that'll help too.