Networking challenge:

DJ_Izumi · Post by **DJ_Izumi** » Mon Jan 05, 2004 9:22 pm

Yeah, but certian software can benifit fully from multiple processers, it just has to give each CPU specfic tasks. Like how TMPGEnc will use multiple threads to spread the task around.

SHouldn't there be a solution that would have the modems assigned different chunks data to download?

mckeed · Post by **mckeed** » Mon Jan 05, 2004 9:27 pm

There isn't really a large demand for what you are asking to do, at least not in a consumer market. Even in a professional market, you buy a router when you want to do something like that. This kind of function would be rather cpu intensive to preform based on my knowledge of the IP protocol. Also you have to remember. The computer doesn't see a modem unless its usb. It sees an IP address. The IP protocol isn't really set up to do these kinds of things. You need at least one intermediate between you and the connection for this to work based on how packet switching and how the IP header is composed.

klinky · Post by **klinky** » Mon Jan 05, 2004 9:33 pm

mckeed wrote:Which is why i posted a link to a router which would do aggregating of connections

I dumb, I didn't see your pretty linky...

And yes, like I said you could get a download accelerator... They basically use the HTTP resume feature to start downloading @ multiple points in a file, over multiple connections. This could work, though how well your load-balancing works will come into play. Becuase it might stuff both connections onto one NIC. You'd most likely have to open a bunch and hope that some of them split over to the other NIC.

Also keep in mind that places, such as our very own AnimeMusicVideos.ORG do not like DAs since they hog up HTTP connections/resources on the server. So they block use of them. Which basically means you're stuck using a single connection. Though you might be able to download two videos from the ORG @ the same time, going max speed over each line.

Most P2P software has multi-source downloading. Which uses multiple connections. But most people on p2p networks are limited to 16KB/32KB/64KB upload rates. Also there are long queues on many networks. So even if you had 100 connections going but each was only going 1.2KB/sec. You're not gaining anything really.

It does come down to load-balancing to, because it can be hit and miss. So it might overload one card but the other card won't get used... So.. yeah...

Is it worth it for you to spend $250 on ? Or fiddle with linux. Which actually after reading that page I linked to over again, that might not even work for what you want. So X_X! Bah...

jbone · Post by **jbone** » Mon Jan 05, 2004 10:54 pm

Izumi, you've missed a major point:

You won't get any extra bandwidth by plugging a second modem into the line.

One modem = 100% available bandwidth

2 modems = 50% available bandwidth each

50% + 50% = 100%

Alex_Dragon · Post by **Alex_Dragon** » Tue Jan 06, 2004 12:16 am

jbone wrote: One modem = 100% available bandwidth

2 modems = 50% available bandwidth each

50% + 50% = 100%

Ding! Ding! Ding! We have a winner! He's right you yourself said the signal gets weaker per splitter for the modems.Hence the signal being the same strength if two were connected.

klinky · Post by **klinky** » Tue Jan 06, 2004 1:01 am

Right but you guys have to count in if there is a cap on the line. The cable line could handle way more than 1.5Mbit/256Kbit. So if you have a cap on your cable line this could help, but if you don't then it is useless...

Corran · Post by **Corran** » Tue Jan 06, 2004 1:13 am

klinky wrote:Right but you guys have to count in if there is a cap on the line. The cable line could handle way more than 1.5Mbit/256Kbit. So if you have a cap on your cable line this could help, but if you don't then it is useless...

-_- except they would be on the same cable which means the same port at the cable provider's end. The port itself is probally capped at a DS-1 rate...

mckeed · Post by **mckeed** » Tue Jan 06, 2004 11:15 am

Well, that might not be exactly true since most cable companies cap their modems at a certain speed. It is is any less than the full bandwitdth then she will get some benifit. It all depends on how anal her cable provider is.

DJ_Izumi · Post by **DJ_Izumi** » Tue Jan 06, 2004 1:10 pm

jbone wrote:Izumi, you've missed a major point:

No, you're missing a major point you gnat.

Most every ISP in North America dosn't allow their systems to operate at full speed, they're call capped. Ever notice how many ISPs will let you pay for faster internet but you use the same modem? Each modem is just assigned a limit. Now, should both modems be operating at their maximum capacity, you'd be right... Of course, if both modems were operating at maximum capacity... *checks* Which is 40mbit down and 10mbit up. Now, if I had a 40/10mbit connection, I wouldn't be complaining... In fact I'd be able to blast HOLES into the internet with my computer.

I have SEEN three cable modems operating from same cable line from my ISP on three seperate computers, all getting the same maximum speed (Which was 250KBps up and 45KBps down)

While my ISP may be inept enough to give me 18 months of free cable internet and a free cable modem when I asked for disconnection, they are not corrupt enough to un-cap me for a fee. So this was hoped to be plan B, two cable modems bith using their cap to the max to get a higher speed.

But thanks for standing up to be proven wrong jBone.

NicholasDWolfwood · Post by **NicholasDWolfwood** » Tue Jan 06, 2004 4:35 pm

Izumi, you're missing a major point.

What you planned will not work.

Once you put the modems on the lines, it WON'T REACH MAXIMUM CAP.

The signal get's weaker when you put more than one cable modem on the line. Unless there's some different cable modem lining system in Canada *snicker*

AFAIK, all cable modems use a Coax cable to connect...these cables can only be pushed so far. Splitting the signal makes both modems weaker by ~50%. 50% + 50% = 100%

Therefore, the cap will STILL be 250KBps up and 45KBps down.