[asterisk-users] Dual Wan Router with Failover

[Dean Collins]

Thanks for the reply matthew, basically I've been looking at going to a
dmz model for a while as currently everything runs through a single
sbs2003 server and when it's churning drives doing something sometimes
audio errors occur.

 
Cheers,
 
Dean
 

> -----Original Message-----
> From: Matthew Rubenstein [mailto:email at mattruby.com]
> Sent: Tuesday, 14 November 2006 11:41 AM
> To: Dean Collins
> Cc: Asterisk-Users
> Subject: RE: [asterisk-users] Dual Wan Router with Failover
> 
> 	There are several dual-WAN routers with load balancing and
failover,
> including the Xincom Twin-WAN series that I have tested OK with SIP
(as
> NAT): http://www.xincom.com/twinwan.php . Their other products
probably
> work, too.
> 
> 	Keep in mind that load balancing on these devices assigns each
> TCP/IP
> *connection* to its own WAN interface. So a large transfer on a single
> connection is limited by the bandwidth of whichever interface it's
> started on, even if the transfer starts slow enough to get assigned to
a
> smaller bandwidth interface, then expands to require the bandwidth
from
> the other WAN. The tech to de/multiplex streams works "well" only when
> connecting to a single router endpoint, over relatively few hops that
> can lengthen unpredictably the path some deplexed tackets travel. UDP
> works better, but it still doesn't really work that well. What works
> well is assigning different WANs to different apps' traffic, using
> multiple WANs for failover, or just accepting that these techs are
> better than nothing, and offer cheap ways to at least avoid a single
> point of failure in the WAN scheme.
> 
> 
> On Tue, 2006-11-14 at 08:07 -0700,
> asterisk-users-request at lists.digium.com wrote:
> > Date: Tue, 14 Nov 2006 10:07:41 -0500
> > From: "Dean Collins" <Dean at cognation.net>
> > Subject: RE: [asterisk-users] Dual Wan Router with Failover
> > To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> >         <asterisk-users at lists.digium.com>
> > Message-ID:
> >
> <677A75F88616F04E897D9D0E8397B10D06DC0F at cognationsvr1.Cognation.local>
> > Content-Type: text/plain;       charset="US-ASCII"
> >
> > Hi Jason,
> > I was looking for an external solution outside of my asterisk box so
> > that I can load balance my other website/email traffic as well.
> >
> >
> > Cheers,
> >
> > Dean
> >
> >
> > > -----Original Message-----
> > > From:
> > asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
> > > bounces at lists.digium.com] On Behalf Of Jason
> > > Sent: Tuesday, 14 November 2006 11:00 AM
> > > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > > Subject: Re: [asterisk-users] Dual Wan Router with Failover
> > >
> > > If you don't mind using linux, linux can do some fairly intense
load
> > > balancing all built in. Check out the Linux Virtual Server
project.
> > As
> > > for WAN failover,  if you again don't mind using linux, you can
> > script
> > a
> > > simple ping to the internet (I would ping at least 3 hosts) and if
> > that
> > > fails, fail to your second ISP.  You can also do some crazy fun
> > stuff
> > > with linux advance routing and bonding.
> > >
> > > Jason
> > > The place where you made your stand never mattered,
> > > only that you were there... and still on your feet
> > >
> > >
> > >
> > > Dean Collins wrote:
> > > >
> > > > Are you looking for load balancing or failover.
> > > >
> > > >
> > > >
> > > > Also is there a cheaper way of implementing load balancing than
> > $845
> > > > appliance?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > Cheers,
> > > >
> > > >
> > > >
> > > > Dean
> > > >
> > > >
> > > >
> > > >
> >
------------------------------------------------------------------------
> > > >
> > > > *From:* asterisk-users-bounces at lists.digium.com
> > > > [mailto:asterisk-users-bounces at lists.digium.com] *On Behalf Of
> > *Todd-
> > > > Asterisk
> > > > *Sent:* Tuesday, 14 November 2006 9:26 AM
> > > > *To:* Asterisk Users Mailing List - Non-Commercial Discussion
> > > > *Subject:* Re: [asterisk-users] Dual Wan Router with Failover
> > > >
> > > >
> > > >
> > > > I've been looking for this as well..  I need to support up to 20
> > VOIP
> > > > phones over Internet as the Asterisk server is off-site.  We'll
> > have
> > > > multiple cable modems or DSL routers.
> > > >
> > > >
> > > >
> > > > I found this device which looks promising - does anyone have any
> > > > experience with this?
> > > >
> > > >
http://www.peplink.com/productsLoader.php?productName=balance
> > > >
> > > >
> > > >
> > > >   Todd
> > > >
> > > >
> > > >
> > > > On Nov 13, 2006, at 8:49 PM, Dovid B wrote:
> > > >
> > > >
> > > >
> > > > Hi List,
> > > >
> > > > Does anyone know of a good dual wan router that can handle SIP
> > well
> > > > and can failover between connections if there is a SIP issue on
> > one
> > of
> > > > the lines (meaning there still is a connection however there
isnt
> > > > enough bandwith or sip packets arent going thru etc.) ?
> > > >
> > > >
> > > >
> > > > Thanks.
> > > >
> > > >
> > > >
> > > > Dovid
> --
> 
> (C) Matthew Rubenstein