EIGRP - both geograhical area having 2 same networks.

Answered Question
Mar 27th, 2008
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Hi Experts,

I would like to know what will happen if there is 2 networks on 2 diff sites.


Will all the routing affected? or only the particular network?


Thanks.


Correct Answer by Jon Marshall about 9 years 2 months ago

Cindy


Without topology details this answer is at a very high level.


If you have the same network/subnet in 2 different locations then


1) Both networks will be unable to communicate with each other for obvious reasoons ie. host 192.168.5.10 wants to communcate with host 192.168.5.20 in the remote subnet but if course it will not get off it's loca subnet.


2) Other locations/subnets will be affected in that they will be directed by the routing protocol to the location with the best metric so there is no guarantee that when you want to talk to 192.168.5.10 you are being directed to the right one.


HTH


Jon

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Correct Answer
Jon Marshall Thu, 03/27/2008 - 21:28
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Cindy


Without topology details this answer is at a very high level.


If you have the same network/subnet in 2 different locations then


1) Both networks will be unable to communicate with each other for obvious reasoons ie. host 192.168.5.10 wants to communcate with host 192.168.5.20 in the remote subnet but if course it will not get off it's loca subnet.


2) Other locations/subnets will be affected in that they will be directed by the routing protocol to the location with the best metric so there is no guarantee that when you want to talk to 192.168.5.10 you are being directed to the right one.


HTH


Jon

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