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Datacenter Downsizing Wiring

At our colocation facility, my company current has two 100mb circuits for internet connectivity, each connecting to a router.  We are scaling back at this colocation facility and will be dropping one of the circuits, but combining the allocated IP's to the single remaining circuit.   Can I connect the remaining circuit with the combined IP's and the two routers to a switch? or do I need to reconfigure one of the routers to handles all the IP's?  Diagram for clarity attached.  Thanks.
CircuitRewire.pdf
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gtkdw
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gtkdw
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1 Solution
 
LeeeeeCommented:
Are the two circuits through two different ISPs? Are you advertisement via BGP currently?
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gtkdwAuthor Commented:
Circuits are from the same ISP.  Not sure regarding BGP.
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LeeeeeCommented:
In theory, you should be able to do this. With the layer 2 segment in between your edge routers and the sp edge, make sure your ISP is on board as you may need to coordinate the IP configuration.

Without knowing how your current IP space has been allocated to you, I have seen this set-up at several customers I have worked at. Are you consolidating the IP space to one /24? How was it broken up in the current environment?
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gtkdwAuthor Commented:
We currently have multiple /24's on each circuit.  All together it will be four /24's and one /23 on the remaining circuit.
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LeeeeeCommented:
It may be beneficial to research how your ISP is handling routing regarding those subnets in the current environment, and whether they are advertising those networks for you or if BGP is running on your edge routers. Do you have access to them or are they managed by your ISP?
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gtkdwAuthor Commented:
I have access to them.
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