Can OTV run over an existing layer 2 link?

Experts,

I have two sites connected via a layer 2 handoff from the ISP.  The L2 link terminates into an ASR.
Do I need to convert it to layer 3 to be able to do OTV?
trojan81Asked:
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AkinsdNetwork AdministratorCommented:
OTV (Overlay Transport Virtualization) is used to extend Layer 2 applications without the need to convert to layer 3.

http://www.cisco.com/c/en/us/solutions/data-center-virtualization/overlay-transport-virtualization-otv/index.html#~Overview 

Do I need to convert it to layer 3 to be able to do OTV?
No
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Craig BeckCommented:
Akinsd is right.

The link between sites is L3 already anyway as you have a link between the ASRs, so from the side you want to extend it's routed anyway.
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harbor235Commented:
As long as layer 3 connectivity exists between locations OTV allows you to basically tunnel layer 2 inside layer3.
OTV is MAC-in-IP.

Here is a good link for configuring OTV on an ASR -

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/wan_otv/configuration/xe-3s/asr1000/wan-otv-xe-3s-asr1000-book/wan-otv-confg.html


harbor235 ;}
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