On Wed, Jul 22, 2009 at 10:12 PM, Mayuresh<mayur...@acm.org> wrote: > Fed up of downtime of my ISP and having heard the same stories about another > ISP operating in the area, I am wondering whether it's possible to subscribe > to both of them for redundancy. > > However, it won't be an economical proposition if used only for redundancy. > Also, as a home user there are no multiple simultaneous users. So only way > both connections would get utilized (when both are up!) and give value for > money is if for a single user they both could serve in tandem. In other words, > let's say I have both connections of 128 kbps, I should get an effective > download speed of 256kbps for download of even a SINGLE file (and not multiple > files simultaneously). >
I've tried using iptables to achieve such stuff, but when it comes to high performance and flexible networking, openBSD and opensolaris' crossbow far out class what the present-day Linux TCP/IP stack can deliver. You could try http://lartc.org/howto/lartc.rpdb.multiple-links.html What I figured out was that there's some funky routing table manipulation that happens which makes traffic for a particular destination go out via one specific ISP. A colleague then setup a really interesting openBSD based firewall which gave us load balancing + failover, and consumed just 35% CPU load as against a linux kernel's 90% CPU load consumption. We had to abandon that at a corporate level because we needed to all gain proficiency with OpenBSD's firewall tools, and all of us didn't have the bandwidth and time to devote to fresh learning. > To the extent I searched around, it looks difficult or impossible. I think > it's > a reasonable consumer expectation, though do not know about its feasibility. > > Any ideas? I installed Vyatta today, and am in parallel writing a Python based web UI for opensolaris' crossbow. For home users, I'd say that you use the info in the link here (http://lartc.org/howto/lartc.rpdb.multiple-links.html) and use a multi segmented download manager which would make connects via both the ISPs (hopefully). Alternatively, if you are a GNU userland user (most of us are) and just need Gnome/KDE with a variety of desktop tools (multimedia, internet tools, office productivity), then give one of the BSDs a shot and use the underlying networking tools that come in the BSD land. > > Mayuresh. > _______________________________________ > Pune GNU/Linux Users Group Mailing List > -- Sriram _______________________________________ Pune GNU/Linux Users Group Mailing List
