[c-nsp] About a post made from user lpd at cisco.com

Nargos Ftw nargosftw at gmail.com
Mon Mar 12 13:25:44 EDT 2012


Hello.

Hope you read it.
I was on google looking for information about differences between OTV and
Fabricpath and found this post of yours:
http://www.gossamer-threads.com/lists/cisco/nsp/134263?do=post_view_threaded#134263

In that post, you mention that:
"OTV is a technology that allows us to extend L2 across any L3 (IP)
infrastructure. Cisco Fabric Path is in essence the ability to run L2
networks without spanning tree and all links active."

I have 2 datacenters and must extend 2 VLANs. So i tought "Wow, thats OTV
for sure."
Then, after researching a little i found that Fabricpath would do the job
too.
All i need is interconnect 2 DCs with DWDM and 2 VLANs must be extended.
Fabricpath is cheaper than OTV.
I feel dumb, but i cant see the difference between them.
Both maps L2 address dynamically.
Both uses routing logic.
I know that cisco recommends OTV in this case, but Fabricpath would work
fine.

*What should i do and could you please show me the differences between OTV
and Fabricpath?* All i see on cisco webpage are presales webpages and
configuration guides.

Thank you so much.


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