I currently have one main site and one DR site. I have two separate provider links connecting the main site to the provider site which are L2 links. At the main site I have two nexus 7009 (NX-OS6.0) and at DR one nexus 7009 (NX-OS6.0) I am trying to leverage OTV so I can have the VLANs extended across both links in a redundant fasion.
Each N7k has a "main VDC" where all my interfaces and VLANs as a core site and a "OTV VDC"
The provider links sit on routed ports beteen the OTV VDCs like this
1. main site sw1-OTV VDC---Provider1---DR site sw1 OTV VDC
2. main site sw2-OTV VDC---Provider2---DR site sw1 OTV VDC
#1 works fine VLANs extended and the whole nine yards. I went to implement #2 by extending the Site vlan at the main site only from switch #1 to switch #2 and then build the same overlay interface with the same control group and data group extending the same vlans at switch one.
The problem is when I hop over to DR and create a second overlay interface joining the second provider link I realized that I am a newbie in OTV. I could not extend the same vlans controlgroup and data group within the same OTV VDC.
My question is what is the best way to achieve redundnancy in this configuration. Should I build a OTV #2 VDC in DR and move the second provider link to it so it looks like site one?
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