A network architect from a service provider is designing an architecture using a VMware SD-WAN Partner Gateway handoff. Which dynamic routing protocol should the engineering choose?

Question

Options

• ARIP Version 2
• BOSPF
• CStatic
• DBGP

• A
  84% (32)
• B
  5% (2)
• C
  3% (1)
• D
  8% (3)

Explanation

There is a likely error in the answer key provided. Based on VMware SD-WAN documentation and industry standards, D (BGP) is the correct answer, not A.

Why BGP is correct: VMware SD-WAN Partner Gateway handoffs in service provider architectures use BGP as the supported dynamic routing protocol. BGP is the standard protocol for SP peering relationships, handles large-scale route exchange between autonomous systems, and is explicitly documented by VMware as the dynamic routing option for Partner Gateway configurations.

Why the others are wrong:

• A (RIP v2): A legacy distance-vector protocol limited to 15 hops and unsuitable for service provider scale - not supported for SD-WAN Partner Gateway handoffs.
• B (OSPF): An interior gateway protocol designed for single autonomous systems; not appropriate for SP interconnect/handoff scenarios.
• C (Static): Not a dynamic routing protocol at all; eliminates the flexibility and automation that make SD-WAN valuable.

Memory tip: Think "SP = BGP." Any time a question involves a service provider, inter-AS routing, or WAN handoff, BGP is almost always the answer. It's the language routers speak at scale across organizational boundaries.

Note for exam takers: If this question appears on your actual exam with A as the marked answer, it is likely a mistake in the question bank. The VMware SD-WAN (VeloCloud) Partner Gateway documentation specifies BGP for dynamic routing handoffs. You may want to flag this to your instructor.

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