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Bonding two T1 lines....

Hi, I have two T1 lines coming into my Cisco 2811 router. One t1 is connected to the Fastethernet 0/0 port and the second line is connected to the Fastethernet 0/1 port. Both these ports have a public IP address. I have a third network card on the router  ( HWIC-1FE ) from where I would like to have my LAN connection that will have a bandwidth of 3 Mbps ( both T1 lines combined ). Can someone let me know how this can be done? The output of my IP interface br is as follows:

Interface                  IP-Address             OK?        Method     Status               Protocol
FastEthernet0/0            12.109.x.2        YES       NVRAM    up                    down
FastEthernet0/1            12.104.x.130  YES       manual        up                    down
NVI0                           unassigned           YES       unset          up                     up

Thank you for the help.


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aej1973
Asked:
aej1973
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1 Solution
 
Robert Sutton JrSenior Network ManagerCommented:
Multilink PPP provided you have all your circuits coming from the same carrier/provider.
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aej1973Author Commented:
What happens if I am getting my T1's from two different providers? Is it not possible for me to bond these two lines then?
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Robert Sutton JrSenior Network ManagerCommented:
FWIW:
You should know that Multilink PPP must be configured on each side of the link. Thus, you cannot get multiple PPP T1 circuits from multiple carriers and expect to run Multilink PPP across them. All Multilink PPP circuits must come from the same carrier.
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aej1973Author Commented:
Thank you.

What happens if both the T1 lines are terminated on two different routers and the output from these two routers ( say from the Fastethernet 0/0 slots ) are terminated into the FE 0/0 and the FE0/1 port of a 2811 router ( third router ). Is it at all possible to configure the the additional card ( HWIC-1FE ) on the 2811 router to combine the bandwidth of two lines?  Thank you for your help.
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Robert Sutton JrSenior Network ManagerCommented:
No.
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