Hi, Well, OTV is there to mostly allow L2 interconnections across an IP cloud, while FabricPath is mostly designed to scale up the L2 domain in a really large L2 environment (often in the same location). Mind you, this is a very simplistic view of both technologies, which would most likely require a couple of hours to cover completely...
For Layer 2 DCI there are quite a few other solutions you may look at. The differences are around scale, capacity (bandwidth/number of vlans/hosts etc), convergence speeds, available infrastructure (IP, MPLS etc), and some other factors. Some references: http://www.cisco.com/en/US/netsol/ns975/index.html http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/white_p aper_c11_493718.html http://blogs.cisco.com/datacenter/introduction-to-%E2%80%9Ccisco-datacen ter-interconnect-dci%E2%80%9D/ Also, I would recommend this Cisco Press book: http://www.ciscopress.com/bookstore/product.asp?isbn=1587059924 Layer 2 DCI is most likely something you want to discuss with your account team, as there are quite a few pit falls as well as quite a few different design alternatives. Arie -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Nargos Ftw Sent: Monday, March 12, 2012 19:26 To: [email protected] Subject: [c-nsp] About a post made from user [email protected] 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_thre aded#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. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
