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Re: (ASCEND) Bonded T1's?



That's more of a kludgey solution.  Any sensible person wanting to bond
T1s needs to purchase an inverse multiplexer.  Larscom has some nice units
that scale from 1 to 4 T1s and work well, but they aren't cheap.  They are
easy to setup and work quite well.  Of course, if you've got channelized
T1s, I'm sure it's possible, but it just doesn't seem like a good idea,
unless you really want to try it.

Advertising one set of routes via one T1 and then another set of routes
is a bad idea.  If one goes down, so does half of your network.  I'd
rather use an inverse mux and a dedicated router doing BGP than say
rip/ospf over serial links into a max.  

Regards,
Joe Shaw - jshaw@insync.net
NetAdmin - Insync Internet Services
Fortune for today: "You're not drunk if you can lie on the floor without
holding on." -- Dean Martin

On Wed, 31 Dec 1997, Tim Connolly wrote:

> This may not be a true fix as I have never tried it, but why couldn't
> you route half the subnet(s) across one T1 and the other half across
> the other?
> 
> Matt Holdrege wrote:
> 
> > At 10:52 AM 12/30/97 -0600, Scott Kozicki wrote:
> > >Can you bond multiple T1 interfaces together on a Max 4K? That is to
> > >say, can I MPP 2 T1's together to form one ~3MB pipe upstream?
> >
> > Well, you can bundle multiple channels across T1's, but you can't bundle
> > two unchannelized T1's together.
> >
> > However, beware that vanilla TCP/IP doesn't work well at all when you
> > exceed about 6 to 8 MP channels.
> >
> > Matt Holdrege           http://www.ascend.com   matt@ascend.com
> > ++ Ascend Users Mailing List ++
> > To unsubscribe: send unsubscribe to ascend-users-request@bungi.com
> > To get FAQ'd:   <http://www.nealis.net/ascend/faq>
> 
> 
> 
> -- Tim Connolly tec@mountain.net     MountainNet, Inc.
> -- (304) 594-9075 ext. 37            2816 Cranberry Square
> -- fax (304) 594-9088                Morgantown, WV 26505
> 
> 
> ++ Ascend Users Mailing List ++
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> To get FAQ'd:	<http://www.nealis.net/ascend/faq>
> 

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