In diagnosing OSPF routing integration with cloud networks, what common issue should be looked for?

Question

Options

• AIncorrect VLAN assignments
• BFirewall blocking OSPF packets
• CInadequate link capacity
• DMisconfigured route redistribution

• A
  4% (1)
• B
  13% (3)
• D
  83% (20)

Explanation

Misconfigured route redistribution (D) is the most likely culprit when OSPF fails to integrate with cloud networks, because cloud environments typically use different routing protocols (BGP, static routes) that must be explicitly redistributed into OSPF - and mistakes in redistribute commands, metric settings, or route maps will silently break reachability even when OSPF adjacencies appear healthy.

Why the distractors are wrong:

• A (VLAN assignments) - VLANs are a Layer 2 concern; OSPF operates at Layer 3, so VLAN misconfig would prevent any IP communication, not specifically an OSPF-cloud integration problem.
• B (Firewall blocking OSPF) - While firewalls can block OSPF multicast (224.0.0.5/6), this would prevent adjacency formation entirely, making it a connectivity issue rather than a route integration issue.
• C (Inadequate link capacity) - Bandwidth affects performance but does not cause routing protocol integration failures; OSPF will form adjacencies and exchange routes regardless of low capacity.

Memory tip: Think of cloud integration as a "translation layer" - OSPF speaks one dialect, cloud networks speak another (BGP/static), and redistribution is the translator. If the translator is misconfigured, routes never cross the boundary, even if everything else looks fine.

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