01-17-2016 02:58 AM
Hi,
I have an requirement of connecting 3 datacenters with each site having a separate L3 link to other sites.
Can anyone guide me for a good design for extending L2 Vlans between them. I know OTV can provide it with 2 sites, but how to deploy it in this topology.
SiteA --------L3------------SiteB
\ /
\ /
L3 L3
\ /
\ SiteC /
01-17-2016 11:17 AM
What sort of kit are you planning on doing the OTV on?
01-17-2016 10:33 PM
with Nexus 7700 series on each site
01-17-2016 05:13 PM
If you are talking on the Nexus then use the Unicast mode to achieve this.
Please find reference for the same:-
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html
HTH
Regards
Inayath
01-17-2016 10:33 PM
Thanks for the reply.
one more thing.. If I connect all the 3 sites via OTV between them, should I take any precautions about STP, since there is a chance of MAC leak into the 2nd link.
01-18-2016 05:35 PM
You dont have to worry about the STP while configuring the OTV.
Figure 1-18 shows how OTV, by default, does not transmit STP Bridge Protocol Data Units (BPDUs) across the overlay. This is a native function that does not require the use of an explicit configuration, such as BPDU filtering, and so on. This allows every site to become an independent STP domain: STP root configuration, parameters, and the STP protocol flavor can be decided on a per-site basis.
Please go thorugh the link:-
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI3_OTV_Intro/DCI_1.html#wp1185920
HTH
Regards
Inayath
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