a new (?) netgear router.

mikey
mikey
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RE: RE: I am obviously

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I am obviously not a network guru :>P so if someone would like to interpret please do.

To my amateur eyes the numbers suggest a 100mbit "ceiling" somewhere. I would expect at least test 1 (One ??? Gbit/Mbit NIC connected to a 1Gbit NIC over a 1Gbit switch) to show much higher numbers.
Even test 2 with a AC class wireless should manage 500Mbit on a single link. Though that is trickier to get a controlled test of unless you put all the wifi stuff in the same room and turn off all other electrical stuff in your building :)

Or I'm totally wrong and 100Mbit in iperf is the "correct" number for a 1Gbit network.

At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card. They were upgrading to a 100 network from a 10 network and I had to go around to every pc and ensure it was set to that speed, 1600 pc's later it was done and they all ran at 100. They had run a remote script on the pc's, all Windows XP machines, but it didn't 'take' on some of them and they couldn't tell which ones it didn't work on! I had pc's in 4 major buildings, and about 10 smaller ones, spread out across 400 square miles!!! Retired life is MUCH better!!!

paul milton
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RE: At my old work the IT

Quote:

At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

this reminds me of the airline whos ticketing network got shut down due to a flakely NIC, think it was packet collsion if i recall right. i cant find an article on it now.

thankfully these days they all auto negotiate at their highest speed for that port/cable. as robl has figured out, cables matter in a network. if you have a system not functioning at full speed now a days your first culprit is cable, second would be a switch.

example, my router is fully capable of gigabit speed, however while the WAN pork negotiated a 1Gbit connection to the cable modem (if only that was my actual internet speed) the lan1 port has only managed 100Mbit, as has my one wired PC, the reason? the samknows "white box" is apparently only 100Mbit capable so nothing beyond it or connecting to it, can go passed 100Mbit

p.s. dont all ways trust what they say on the package for cables, mainly true for store baught premade cables, i had found a cheap 1Gbit capable (supposedly) cat5e cable (25ft). thing is, it could never get over 10Mbit, i later figured out why when i was looking at the pinouts, it was wired for 10baseT so it was impossible for it to go 1Gbit, let alone 100Mbit.

now, i make my own :)

seeing without seeing is something the blind learn to do, and seeing beyond vision can be a gift.

robl
robl
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RE: At my old work the IT

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At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

I believe this is true. If your running a wireless network capable of b/g/n and some dude with a network card capable of b/g plugs in then the network will adjust itself to accommodate the PC with the lower network device. This is especially problematic with wireless networks where people and their devices are mobile. This is the best reason to have/open a guest network. This way anyone joining your wifi quest network with a slow device won't impact the others on the "house" network.

Several years ago I was streaming a VUDU movie in realtime through a wireless Western Digital device (like Roku). I had selected the 1080P format and the video/audio were flawless. I then connected a laptop capable of b/g only and the video began to pixellate and the audio was choppy. Shutting down this laptop returned everything back to the good side.

Tom*
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RE: At my old work the IT

Quote:
At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

Actually this is a better reason for having a capable router with both 2.4G and
5G as well as b/g/n/ac keep the 5G for ac and let the b/g/n's fight over bandwidth on the 2.4G.

mikey
mikey
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RE: RE: At my old work

Quote:
Quote:

At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

this reminds me of the airline whos ticketing network got shut down due to a flakely NIC, think it was packet collsion if i recall right. i cant find an article on it now.

thankfully these days they all auto negotiate at their highest speed for that port/cable. as robl has figured out, cables matter in a network. if you have a system not functioning at full speed now a days your first culprit is cable, second would be a switch.

example, my router is fully capable of gigabit speed, however while the WAN pork negotiated a 1Gbit connection to the cable modem (if only that was my actual internet speed) the lan1 port has only managed 100Mbit, as has my one wired PC, the reason? the samknows "white box" is apparently only 100Mbit capable so nothing beyond it or connecting to it, can go passed 100Mbit

p.s. dont all ways trust what they say on the package for cables, mainly true for store baught premade cables, i had found a cheap 1Gbit capable (supposedly) cat5e cable (25ft). thing is, it could never get over 10Mbit, i later figured out why when i was looking at the pinouts, it was wired for 10baseT so it was impossible for it to go 1Gbit, let alone 100Mbit.

now, i make my own :)

We did go thru at replacement time and replace every network cable one round too, we replaced roughly 25% of the pc's every year. They said it was because they wanted to color coordinate the wires depending on which router they were on, but every one of my 1600 got store bought blue ones, no matter which building they were in. I do NOT miss those long weeks of working 65 to 80 hours per week for almost 2 months. I only worked half time so had to switch to full time during that time period, but could STILL only get paid for a max of 40 hours per week. There was ALOT of comp time taken afterwards, some pay periods I would only work one day yet still get paid for 5 days!! THOSE were nice, the 65 to 80 hour weeks to get those were NOT though!! My boss thought that if no one saw me for 2 weeks they might get suspicious if I still got a pay check, so
I would come in one day and take the other 4 days off. Since I was part time no one ever figured out my schedule except my boss anyway, for me it was simple...every Monday and Wednesday and payday Fridays. Everyone else was too absorbed in their own things and never figured it out, even if I told them.

I used to make my own but my fingers are just not as nimble as they used to be, so my son does it for me now. I bought a small cable tester and we test every cable after he builds it for me. Years ago I bought a 1000 foot box of cat5 cable on ebay and have loaned it out to everyone, yet I still have 1/4 of the box left! At 40 bucks it was a VERY good buy!! One of my friends even wired his single story 3 bedroom home with it, he still lives there and loves it. He may have even let his son use it on his own home, but I wouldn't care even if he had told me.

mikey
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RE: RE: At my old work

Quote:
Quote:
At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

Actually this is a better reason for having a capable router with both 2.4G and
5G as well as b/g/n/ac keep the 5G for ac and let the b/g/n's fight over bandwidth on the 2.4G.

I just signed up for a new Verizon FIOS router last night, they said it was an 'enhanced high speed' router. I have 'g' thru my current router and an 'n' router that doesn't work well hooked up to it. I will have to see if they send me an 'ac' router, or just an 'n' one. I also stepped up to 50/50 yesterday and am paying one dollar LESS per month then I was before. I had 25/25 prior to the upgrade, but am only testing at 25/18 right now...hmmmm might be phone call time!!

robl
robl
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RE: RE: At my old work

Quote:
Quote:
At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

Actually this is a better reason for having a capable router with both 2.4G and
5G as well as b/g/n/ac keep the 5G for ac and let the b/g/n's fight over bandwidth on the 2.4G.

Agree, but the cost of upgrading to equipment to support AC can be a bit pricey. New Laptops that support AC a also up there in $s.

Where I live cable TV is offering internet connection speeds of between 30 and 90 with prices being adjusted accordingly. AT&T has plumbed in Uverse with a speed of 18MBs down. This is over twisted pair (copper) where I live. I was just talking to an AT&T guy at one of the main junction boxes and he said they are still in the process of "cheking Uverse out". He also said that within 12~15 months AT&T was going to plumb in fiber which would offer 100+ MBs. It makes no sense to me to do Uverse now if in 12~15 months you are going to plumb in fiber. We will see. I do know that in Austin, Texas AT&T is offering 300. Yes that is correct. 300.

TimeLord04
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RE: RE: RE: At my old

Quote:
Quote:
Quote:
At my old work the IT guys told me that if even one pc is not set to the highest speed, then all pc's on that network will run at the slower speed of that one card.

Actually this is a better reason for having a capable router with both 2.4G and
5G as well as b/g/n/ac keep the 5G for ac and let the b/g/n's fight over bandwidth on the 2.4G.

Agree, but the cost of upgrading to equipment to support AC can be a bit pricey. New Laptops that support AC a also up there in $s.

Where I live cable TV is offering internet connection speeds of between 30 and 90 with prices being adjusted accordingly. AT&T has plumbed in Uverse with a speed of 18MBs down. This is over twisted pair (copper) where I live. I was just talking to an AT&T guy at one of the main junction boxes and he said they are still in the process of "cheking Uverse out". He also said that within 12~15 months AT&T was going to plumb in fiber which would offer 100+ MBs. It makes no sense to me to do Uverse now if in 12~15 months you are going to plumb in fiber. We will see. I do know that in Austin, Texas AT&T is offering 300. Yes that is correct. 300.

I'm on U-Verse now. We've actually had it since they first rolled out the project/program. Fiber in the street to the phone switch box that controls our local area. Phone line to the house; then, converted over to coax at the side of the house and into the house. (Original install called "Wrapped over coax.")

We had a choice to "Wrap over coax"; or, "Wrap over phone line". If you wrap over phone line; then the installation procedure is treated as they would install for DSL. By wrapping over coax; everything is over TV cabling.

We are on the highest internet package that U-Verse currently offers our area; 24 Mb DL speed, 5 Mb UL speed. Plus we are on U-Verse U-300 TV package with HD service. We have one DVR, two non-DVR, (Model 1200), boxes, and one Wireless TV box. All powering three HD LED LCD TVs; and, one standard CRT TV. We have the U-Verse Wi-Fi gateway, and my D-Link Router, (also Wi-Fi), and 3 Vonage devices for 3 phone lines and one fax line.

When I routinely speed test my internet, I routinely get results in the 24.86 Mb DL range. Once, recently, it dropped to 22.46 Mb DL. The thing is; what Comcast does NOT tell their customers about U-Verse speeds is that U-Verse is "Dedicated". Comcast is NOT "Dedicated". So, Comcast can offer you 50 Mb, (or higher), but at PEAK times; your speed can, (and often does), drop to 1.5 Mb DL speeds. U-Verse is MUCH better.

...and, if true that they are going to finally run fiber all the way to the house; then, that improves U-Verse over Comcast even more! :-) :-D I'm a believer in U-Verse.

TimeLord04
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paul milton
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i would LOVE to have access

i would LOVE to have access to uverse, or fios, or even dsl!, where im at even though im in the city, my choices are cable, sat, or cell. sat and cell to me arent viable, especially considering i use about 60 - 100 GB's per month. my cable provider (mediacom) has a 150GB/cap + $10/50GB over. granted im on the 3Mbps down 512k up (still $30/mo!) package. next one up (with out a contract) is a good $75! a bit much for me.

att has said they have no intention of ever upgrading to dsl/uverse where im at, simply because its not "financially viable" (read, 60% of the population in this city is at or below poverty level)

any way, back O/T a multiband router is the way to go if you can swing it, a lot of stuff just isnt upgradeable, example i have a wii that has wireless G, you cant upgrade that. i used to think upgrading a laptop would be easy peasy, just drop in a new mini card to get N etc, until i cracked one open to see what size slot it used. then i discovered you might have an itty bitty problem... antenna wires!

i actually have that problem with my dell xps 8700, i want to change out the case for something with better air flow. but cant, not unless i want to get rid of the wifi/bluetooth. it uses a half mini pci card (like whats in laptops) and the wires (antenna) runs to the top of the case where there is a plastic shroud for the ports (thus bypassing the faraday cage effect of the steel case) problem is, most cases i see dont have wifi in mind. (looks like ill have to figure out a way to cut holes or something, its a negative pressure design ugh)

seeing without seeing is something the blind learn to do, and seeing beyond vision can be a gift.

Mike Hewson
Mike Hewson
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RE: I bought a small cable

Quote:
I bought a small cable tester and we test every cable after he builds it for me. Years ago I bought a 1000 foot box of cat5 cable on ebay and have loaned it out to everyone, yet I still have 1/4 of the box left! At 40 bucks it was a VERY good buy!! One of my friends even wired his single story 3 bedroom home with it, he still lives there and loves it. He may have even let his son use it on his own home, but I wouldn't care even if he had told me.


Same gig here. I've got a 300m box of CAT5, more than 1/2 left, and do my own cable assembly. In thinking of speeds remember the connections! A little loosening may slow a connection without breaking it. Not all the male terminators & female receptors match very well in milling and the wee detente tag on the cable termination - the plastic bit with the notch that is supposed to spring out a tad and so catch the lip - is renowned for being crap and breaking etc ( that has always annoyed me intensely ).

... so specifically the copper contacts won't always meet with sufficient area of overlap and thus the capacitance especially will vary. Thus the end impedance won't match specifications and reflections/losses etc arise, but always in the direction of reducing signal rates by confounding valid voltage levels.

Cheers, Mike.

( edit ) Note to assemblers : It's the orange/orange&white pair that you have to trim slightly longer because, as the diagram indicates, you have to move just that bit extra to the sides to bring them in line with the correction termination slots. Also if you don't have a good dedicated crimping tool ( for an RJ45 ) you are insane to try any of this .... :-)

( edit ) Whoops, I should qualify that : the colors and which are swapped etc depend upon the setup/convention/usage ( confusing ), though any router built this millennium should cope with variants by sensing upon connection.

( edit ) My explanation may sound odd because one doesn't normally think of a metallic wire as a waveguide. But indeed it is ! That's exactly how AC power is transmitted by push-me-pull-you without any given electron necessarily traversing the distance to be spanned. If one looks at the very high voltage transmission lines, say 1+ Megavolts, they are often arranged in groups of four with suitable spacers to prevent shorts. This makes any radiation of quadrupolar pattern and thus quite suppressed.

I have made this letter longer than usual because I lack the time to make it shorter. Blaise Pascal

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