G+_Ben Yanke Posted August 10, 2015 Share Posted August 10, 2015 Hey Fr. Robert Ballecer, SJ , I'd beg to differ a bit on your comments about increasing your speed and throughput and bandwidth on KH#155, assuming I understood you correctly. Yes, adding an extra modem (with a different ISP, so they are on different lines) technically doesn't increase your throughput, in practice, it gives a faster connection in most cases. Several example cases: 1) Multiple users, each one will have more speed because you are not bogging the other user down as much. 2) Browsing would give the best effect, because each object (stylesheet, javascript, image) on the page will have it's own separate connection (maybe 20 connections just to load the page, sometimes even from multiple domains or multiple servers), you usually have an effective throughput of the combined WAN links. The effect continues if you have multiple tabs open or multiple users (see pt 1). So yes, if you are using FTP and transferring a single file, your throughput will be limited to whatever WAN link it is traveling over. But in practice, it often can speed up general use. Am I off base here or did I misunderstand you? I'd love to hear your thoughts on this. Signed, a Junior CS Major who is teaching himself the basics of networking Link to comment Share on other sites More sharing options...
G+_Fr. Robert Ballecer, SJ Posted August 11, 2015 Share Posted August 11, 2015 The problem is that the user was planning on creating a Dual WAN with TWO connections from his cable company. That's just creating two WANs that are competing for resources on the same network node... that's just silly. Even if he had two WAN connections from two different providers, most of us don't have access to two REAL broadband connections. Most likely a cable modem and a DSL modem. When the speed difference can be x10 or more, then the slower WAN connection doesn't offer any real increase in bandwidth, and definitely no advantage for throughput. Link to comment Share on other sites More sharing options...
G+_Ben Yanke Posted August 11, 2015 Author Share Posted August 11, 2015 Gotcha, makes perfect sense. So I did understand the concept correctly! So if I was going with a 10mbps WISP and 15 mbps DSL line, it would work well to speed up the effective speed for the user? this is all theoretical, of course... Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted August 13, 2015 Share Posted August 13, 2015 Fr. Robert Ballecer, SJ?, does it matter that the cable can actually support more bandwidth than what they're providing? Cable Internet ranges from <5 Mbps to >300 Mbps. If each modem is capped at 20 Mbps, couldn't you get an effective bandwidth of 40 Mbps or am I missing something? Link to comment Share on other sites More sharing options...
G+_Ben Yanke Posted August 13, 2015 Author Share Posted August 13, 2015 Good point! Say the physical cable had a bandwidth of 200 mbps, but their highest tier they would sell to a residential customer is 50 mbps, you could quite easily double your effective speed, right? Link to comment Share on other sites More sharing options...
G+_Ben Reese Posted August 13, 2015 Share Posted August 13, 2015 With the DOCSIS standard, 200 Mbps is still pretty low on the capability. 8 channels can net you 300 Mbps download speeds - it's just having the equipment to do that... https://en.m.wikipedia.org/wiki/DOCSIS Link to comment Share on other sites More sharing options...
G+_Ben Yanke Posted August 13, 2015 Author Share Posted August 13, 2015 sounds about right...I was pulling close to 500 mbps the other day at work (business class cable modem) as I was doing some large downloads. Link to comment Share on other sites More sharing options...
G+_Fr. Robert Ballecer, SJ Posted August 13, 2015 Share Posted August 13, 2015 Ben Reese It SHOULD be... but it's not. Sadly, the cable providers in the US don't provision anywhere near enough bandwidth per node to support what the standard can do. Link to comment Share on other sites More sharing options...
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