Drag and drop each SPAN type on the left to its correct scope description on the right.
Drag a concept onto its matching description — or click a concept then click the description.
Mirrors traffic on the same switch where the source and destination ports reside.
Mirrors traffic to a destination on a different switch using a dedicated VLAN.
Mirrors traffic to a destination reachable via Layer 3 using GRE encapsulation.
Receives the mirrored traffic and should be configured as a monitor session port.
The port whose traffic is being copied for monitoring.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Local SPAN: Mirrors traffic on the same switch where the source and destination ports reside.
Local SPAN mirrors traffic on the same switch; RSPAN extends mirroring across switches using a dedicated VLAN; ERSPAN encapsulates mirrored packets in GRE for routing over Layer 3 networks.
Visual reference
Go deeper
Learn chapter
Route Redistribution and Filtering
Key term
Network Visibility
Network visibility is the ability to see, monitor, and understand all traffic and devices on a network to ensure security, performance, and troubleshooting.
Key term
GRE
GRE (Generic Routing Encapsulation) is a tunneling protocol that encapsulates packets inside other packets to transport them across incompatible networks.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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