Can you please help me to understand the encryption features supported by the Major DCI technologies with Layer 2 Expansion:
I am working on a 3 DC site design, that will be connected through a provider MPLS (L3) and DCI encryption is one of the requirement.
I have explored EoMPLS which can support MACsec vs EoMPLS with GRE which can support IPSec. However this will require Pseudo-wire (PW) state and complex configuration steps.
I am trying to get some input on OTV options with traffic encryption. I believe MACsec is not an option here as there will multiple hop between the DCs. However adding IPSec on the will add additional overhead (42 bytes for OTV + IPSec over head). If i want to use IPsec encryption then I should consider Unicast OTV, because Multicast OTV will again complicate the encryption requirement with IPSec.
Please share your thoughts on this topic. Appreciate your time.
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