Multihomed ISR

Sep 06, 2006 3 Replies
A

I am trying to get a device that will be multihomed for failover purposes. Lets assume the physical link goes down...this needs to be able to failover to the secondary uplink. Both uplinks are live at all times. Should look like this:



LAN | ############ # ISR Router # ############ / \\ / \\ 0000000000 0000000000 0000 000 0000 0000



000 ISP A 000 000 ISP B 000 0000 0000 0000 0000 0000000000 0000000000


What cisco functionality achieves this? I know there is something as I just read over it in a CCDA book this morning.



Thanks, Adam



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W

Hi Adam,

You may wish to investigate the article authored by Dr. Vincent C. Jones:

Multi-Homing--Connecting to Two ISPs

Understand how the availability benefits of multihoming can be achieved at low cost using relatively simple techniques.

But your multihoming strategy must be carefully planned to ensure that you actually improve the Internet availability seen by your company.

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Profile of Dr. Jones:

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Sincerely,

Brad Reese Cisco IOS Software - Compatible Partner Matrix by Technology

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Hendersonville Road, Suite 17 Asheville, North Carolina USA 28803 USA & Canada: 877-549-2680 International: 828-277-7272 Fax: 775-254-3558 AIM: R2MGrant BradReese.Com - Global Cisco Systems Pre-Sales Support
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J

There is a newish feature called Optimized Edge Routing which can be used to load-balance ISP's without implementing BGP:-

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James

snipped-for-privacy@layer8group.com wrote:

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A

James, That will work perfectly.

Thanks very much!

- Adam James wrote:

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