WEBVTT

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10 gigabit networking i mean think about

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it transferring files around to remote pcs at speeds upwards of one Gigabyte

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per second that's a thousand megabytes per second well today we're not only

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going to do it we're going to give you some tips and tricks that will hopefully

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help you out when the time comes to move to 10 gigabit yourself whether it's at

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work or at home and on the subject of work i thought to myself hey how about

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clearing some space on my desk at work by building a pc

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under the desk drop a like on the video if you're amped

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to see my upcoming desk pc build blog

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the master case 5 by cooler master gives you the freedom to truly make your

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mid-tower pc case your own with a variety of modular parts and accessories

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click on the link in the video description to learn more

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you know i still remember how mind-blowing it was like the first time

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that i saw something transfer over my network at 60 to 70 megabytes per second

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with the onboard gigabit lan port on some enforce board that i had then

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shortly afterward my mind was blown again when the pci bus bottleneck was

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removed and thanks to onboard pci express gigabit networking i could

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transfer files thanks to my trusty diamond max 9 120 gig raid 0 boot drive

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at over a hundred megabytes per second

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wow then for the last 10 years well it's

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as though time has pretty much been standing still i mean sure the enterprise space is getting 40 gigabit

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and 100 gigabit links but it really feels like about a decade ago the entire

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industry had a meeting and decided that yeah gigabit is good enough for

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consumers and small businesses and let's just leave it at that well i say no more

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we are using and i'm using this term

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fairly loosely here affordable hardware to go 10 gig at the office today

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it begins with the nix that is to say network interface cards

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we'll be using Intel x540 t2s but the

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only difference between it and the t1 being that it has two ports instead of

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well one and while any 10 gigabit card will knock the socks off of a gigabit

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one we chose these for two reasons one their Intel which is basically the

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industry standard for prosumer network cards not to mention our testing with

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them has gone very well and two because they're both somewhat affordable at 300

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bucks a pop on ebay although i got some of mine for cheaper and available in an

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rj45 equipped variant this is important

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because we wanted to use Ethernet cables

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rather than the expensive sfp plus connectors and direct attach copper

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cables that we were using in our previous 10 gigabit setup the reason for

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that is that while that configuration worked well for us before starting out

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with pcs attached daisy chaining to each other actually then moving up to using

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the backbone links on a 48 port netgear gs752 txs switch it doesn't play nicely

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with running cabling through the walls uh definitely desirable for an office

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space and it's not scalable and if we want to run more pcs on 10 gig at a time

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we need a 10 gig switch with more ports

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and pretty much the switch right now if you don't want to spend an absolute

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fortune and you know then you might as well get sfp plus gear is the xs 712 t12

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port or its eight port little brother from netgear and those use rj45

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connectors all right so it's simple right plug in some Ethernet cables and

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bippidybop boom you're transferring files at a thousand megabytes per second

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right actually not quite first you'll need to make sure that

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you're using cat6a cables if you want

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reliable data transfer over a reasonable

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distance and second and you may not have considered this but 10 gigabit is so

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fast that it exceeds the six gigabit per

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second limit of third generation SATA

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so even if you have a wicked fast SSD drive you'll be limited to speeds in the

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neighborhood of 500 to 550 megabytes per

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second and while pci express ssds that

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overcome this bottleneck do exist

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i stole our Intel 750 series and put it in my personal rig so i ended up using

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another solution i've got our 24 SSD storage server on one end the one that

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we built in this video here and i've got a test bench with that 128

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Gigabyte kit of dominator platinum ddr4 from Corsair on the other end with a

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free and easy to use utility called soft perfect RAM disc used to treat that RAM

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like a hard drive so with such fast storage on either end it's much easier

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to evaluate the performance of the actual network link which frankly didn't

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go so hard on the first kick at the cam i mean i don't know

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who these people getting perfect 10 gig performance out of the box

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are or how many horseshoes they had to put up their butts to make them so damn

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lucky but i was seeing this weird cap at

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around 300 to 350 megabytes per second

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now to be clear that is still a significant improvement and already well

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worth the upgrade for our purposes but i wanted more damn it i paid for more

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and thanks to an amazing series of posts on the synovate blog which you should

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definitely check out we can link them below the video i was able to do much

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better than that mostly so the first tip from them was this

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great tool called nttcp that has a command line interface so not the

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friendliest thing but that they simplify by basically showing you where to plug

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in the program install path and machine ip addresses and boom it's off to the

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races so this tool revealed that my two machines were capable of more than one

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Gigabyte per second performance between them so what gives

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well time to dig into the advanced settings to see if there's anything that

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we can tweak i started by enabling jumbo packets on all clients involved in the

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transfer and on my network switch side

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note here it doesn't seem to matter if the values don't match up exactly as

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long as your switch is set to something higher than your nics so this means that

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now effectively the data packets sent back and forth are bigger which is

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better for a high speed transfer of large files next i tweaked receive side

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scaling a feature that leverages more CPU cores for network transfers and i

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set it to match the settings with my number of logical processors on my pc so

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16 on my 5960x test bench uh 8 on my

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6700k test bench and 16 on my xeon server and finally i increased the size

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of both the send and receive buffers to

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their maximum this increases memory usage but can yield extra performance so

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then what did i get well performance wise over the original numbers in ntt

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tcp not much but my real world transfers

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were much higher in fact more higher than they should have been but i'm not

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going to complain and i was seeing sustained speeds of

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over double my original transfer rates

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with that said not all is necessarily rosy and for whatever reason maybe some

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of you sharp people out there can go ahead and contribute your comments below

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some transfers are faster or slower than

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others so i ended up actually putting together two test benches with brand spanking new

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installations of Windows 10 and Windows server 2012 r2 just for the sake of

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trying to eliminate as many variables as possible and i was still running into

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weirdness where one machine with a particular os would saturate the

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connection writing to the wanik SSD server but then be capable of

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half or 60 percent of that speed when reading from it and then another would

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saturate on reeds and then limp along on rights i mean

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that's the one you're looking at here by the way but as snake bitten as i seem to

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be when it comes to networking stuff limping along in this case is still 500

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plus megabytes per second so i guess i'll just have to deal with my 34

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Gigabyte file transferring a little slower than it otherwise would overall

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very happy with the results and speaking of being happy with the

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