02-24-2016 05:39 PM - edited 03-05-2019 03:25 AM
Hi guys,
I have this scenario with two routers at the HQ - a primary router (with 3 dedicated point-to-point links to 3 different remote sites) and a secondary router (a standby router with a single route able to connect to all 3 sites via a Central Remote Site Network).
The objective of this setup is to have:
An image of this scenario can be found attached.
There seems to be an issue where as if the link goes down at 1 or 2 of the 3 links to remote sites, the secondary router with the backup link to all sites will still remain in standby mode, as the primary router is still active. In order prompt the secondary router to be active, the primary router will need to be switched off, which is definitely not quite ideal as it will affect the other remaining active links.
To resolve this matter, one way I believe is to have another single route backup link to connect to the primary router and configure this as a floating static (as seen in the attached image with the green dashed line). However would like to hear other possible alternatives in order to achieve this scenario's objectives.
Looking forward to suggestions and comments to help solidify this scenario.
Thanks in advance!
02-24-2016 08:41 PM
The easiest option is to use Cisco DMVPN technology. You create two clouds, primary and secondary.
This is the guide to the Cisco Validated Design with all the configs on how to set this up.
http://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/Aug2014/CVD-VPNWANDesignGuide-AUG14.pdf
02-24-2016 11:42 PM
Hi Philip,
Thank you for the input.
Do correct me if I'm wrong, but does DMVPN require Internet as a medium?
This scenario will not be connecting via Internet but rather through a metro-e network.
02-24-2016 11:47 PM
No it doesn't.
You could also consider EIGRP OTP as well.
02-25-2016 09:51 PM
Ok great!
Thanks Philip. Will explore a little more on the two options recommended.
Appreciate it.
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