H19-401_V1.0 · Question #844
RR does not have to be deployed in the SD-WAN solution network, and routes can be exchanged directly between sites.
The correct answer is A. True. A is correct because SD-WAN solutions have their own built-in control plane mechanisms (such as vSmart controllers in Cisco SD-WAN) that handle route distribution natively across all sites. These controllers distribute overlay routing information (via OMP in Cisco's case)…
Question
RR does not have to be deployed in the SD-WAN solution network, and routes can be exchanged directly between sites.
Options
- ATrue
- BFalse
How the community answered
(30 responses)- A83% (25)
- B17% (5)
Explanation
A is correct because SD-WAN solutions have their own built-in control plane mechanisms (such as vSmart controllers in Cisco SD-WAN) that handle route distribution natively across all sites. These controllers distribute overlay routing information (via OMP in Cisco's case) directly between edge devices, making traditional BGP Route Reflectors unnecessary in the SD-WAN fabric itself.
B is wrong because it assumes RR is a required component of SD-WAN architectures - this reflects a misunderstanding carried over from traditional BGP full-mesh or hub-and-spoke designs where RR was essential to avoid iBGP split-horizon limitations.
Memory tip: Think "SD-WAN already reflects - no RR needed." SD-WAN controllers act like route reflectors in function, so they replace the need to deploy a dedicated RR. If a question asks whether traditional BGP components are required in SD-WAN, the answer is almost always no.
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