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bandwidth aggregation on Cisco Routers

I would like to know if it is possible to bond different types of interfaces on CIsco routers to achieve increased bandwidth.  I have bonded two t1 interfaces to achieve 3mbs throughput.  Is it possible to bond or multilink a T1 interface, and one or more IP interfaces that may be connected to a high speed cable modem, to achieve higher throughput between our main office and a remote office.  For example we can obtain a 50 mbs down 20 mbs up cable modem link to the internet at our main office.  We can obtain 2 5mbs cable modem connections at our branch office.  Can we aggregate these connections in our CIsco 2800 routers and create a single point to point VPN connection with 10mbs.  I know we can purchase a device like a Pep Link but if the Cisco routers can do it  I will use them.
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Vincent_Russoniello
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Vincent_Russoniello
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gsmartinCommented:
Multilink PPP is a layer 2 protocols that is enabling T1 type circuits to be bonded, and then you enable Layer 3 IP over it.  This is not possible with Cable modem for at least one fundamental reason Cable already resides at layer 3.  

Given my experience, my best recommendation would be to use a WAN aggregation appliance such as Ecessa PowerLink.  With their appliance you can aggregate/load balance from 10Mb up to 1 GB over with as many as 25 circuits.  They also have the ability to do many other features including site-to-site channel bonding.  

FYI... Note I don't have any special relationships or financial interest in Ecessa.  I have used Ecessa for over 3 years back when they were known as Astrocom.  They have a great product that is reasonably priced and knowledgeable support staff.  I am leveraging two PowerLink 200's in HA configuration (total of 4 devices) split across two sites.  I leverage these appliances primarily for WAN aggregation/traffic load balancing, traffic redirection, Public NAT (in front of Firewalls), DNS SOA, Non-BGP Multi-home, etc...  It also allows me to create public and private networks on eitherside of the NAT appliance outside of the firewall (for various purposes - i.e. guest wireless APs, Internet Monitoring and testing, etc..).

Anyway, I highly recommend this appliance given its dynamic features and functionality, support, competitive pricing, and more.  Good Luck I hope this helps.  

http://www.ecessa.com/pages/products/products_powerlink_plmatrix.php

http://www.ecessa.com/pages/landing/landing_peplink.php?gclid=CJy1oZPWtKsCFcTBKgodXERZgw

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Vincent_RussonielloAuthor Commented:
Just what I was looking for.
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