FreeBSD router two DSL connections
danial_thom at yahoo.com
Sat Dec 24 07:48:07 PST 2005
--- Danial Thom <danial_thom at yahoo.com> wrote:
> --- Yance Kowara <yance_kowara at yahoo.com>
> > > Ted, you have to think outside the box.
> > is
> > > more than one connection. While you can't
> > > increase the throughput of a single
> > connection,
> > > you can increase the throughput of your
> > network,
> > > which is usually the point. "Throughput" in
> > this
> > > context is "capacity". Throughput is not
> > > what you can "get" on a download; its the
> > > total of all of your activites.
> > >
> > > You "can" upload at 2Mb/s on one connection
> > if
> > > you balance your outbound traffic, but not
> > > download, because while you can control
> > > outgoing packets are sent, you can't
> > > over which pipe incoming traffic arrives.
> > >
> > > Believe me, ted. It works. Its not
> > Its
> > > being done. For example a hosting ISP
> > saturates
> > > its pipes outgoing and has very little
> > traffic
> > > incoming. They can load balance in the
> > outgoing
> > > only direction and have all of their
> > > traffic on a single pipe and double the
> > capacity
> > > of their network. Since they never exceed
> > > incoming bandwidth of a single pipe there
> > no
> > > need to balance it.
> > >
> > > DT
> > >
> > Ted and Daniel,
> > I am still following this thread and am
> > all
> > confused here.
> > Back to my original question: 2 ADSL uplinks
> > 2
> > different ISPs.... can they be merged? (Load
> > balanced,
> > load shared, whatever it is)
> > OpenBSD's PF has something that looks
> > promising:
> > Is this what I am looking for?
> > Kind regards,
> > Yance Kowara
> "merged" is not the correct word. You cannot
> change how your traffic comes in (ie from which
> ISP it arrives). You can use various techniques
> (source routing, static routing tables, load
> balancing) to increase your outgoing capacity.
> What you should be discussing is how you can
> each of these techniques within a FreeBSd
> environment. Unfortunately we have to teach Ted
> how routing works in the meantime, which
> the issue.
As an example, I had a customer that had a T1 and
a T3 connection to different ISPs (they kept the
T1 because of the IPs they didn't want to
relinquish, and as a backup), and BGP worked on
hops at the time so clearly that doesnt work when
you have unbalanced pipes, because arguable the
T3 is always the "better" route). So they source
routed all of their dial-up traffic via the T1
and their more profitable hosting traffic to the
You're not going to be able to advertise "2Mb/s
downloads" if thats what you're trying to do.
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