Match each network device operation or architectural component to its corresponding plane of operation or processing path in a modern router or switch architecture.
- Building the Routing Information Base (RIB) and calculating OSPF Shortest Path First (SPF) metrics via the central processorControl Plane
- Performing hardware-accelerated Forwarding Information Base (FIB) lookups and MAC header rewriting on ASIC line cardsData Plane (Forwarding Plane)
- Authenticating SSH administrative sessions and processing NETCONF/RESTCONF RPC requests to update YANG datastoresManagement Plane
- Generating ICMP Time Exceeded control messages for transit IP packets whose Time-to-Live (TTL) field decrements to zeroException Path (Punt to Control Plane)
Cevap
Building the RIB and calculating OSPF metrics maps to the Control Plane; performing FIB lookups and MAC header rewriting maps to the Data Plane; processing SSH and RESTCONF sessions maps to the Management Plane; and generating ICMP Time Exceeded messages for TTL-expired packets maps to the Exception Path (Punt to Control Plane).
The pairs accurately distinguish between topology computation (Control Plane), line-rate hardware forwarding (Data Plane), administrative system management (Management Plane), and hardware exception redirection (Punt Path).
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Anahtar Kavram
Separation of Control, Data, and Management Planes with Exception Handling