Remember ERSPAN
Full name: Encapsulated Remote Switched Port Analyzer
Memory aid: Encapsulate Remote SPAN copies for the network trip.
Mirroring can expose sensitive traffic; scope and secure monitoring access.
Study area: Network architecture & switching · Batch 7
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
ERSPAN — Encapsulated Remote Switched Port Analyzer
Encapsulates mirrored traffic for transport to remote monitoring tools.
Why learn ERSPAN — Encapsulated Remote Switched Port Analyzer?
Encapsulates mirrored traffic for transport to remote monitoring tools.
Where it came from
Mirroring can expose sensitive traffic; scope and secure monitoring access.
- Memory aid (a learning cue, not the expansion): Encapsulate Remote SPAN copies for the network trip.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand ERSPAN: Encapsulated Remote Switched Port Analyzer.
- Recall this memory aid: Encapsulate Remote SPAN copies for the network trip.
- Explain the practical use: Encapsulates mirrored traffic for transport to remote monitoring tools.
- Explain this distinction: Mirroring can expose sensitive traffic; scope and secure monitoring access.
- Identify ERSPAN in a device specification, architecture diagram, or system inventory.
Documentation and sources
- Cisco Switched Port Analyzer configuration (www.cisco.com)