Separate areas through the backbone
05OSPF divides an autonomous system into areas connected through the backbone.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 3 ↗
RFC 2328 · § 3EXAMPLE
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03
Exchange inter-area reachability rather than every internal detail.
Exchange inter-area reachability rather than every internal detail.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Area 0 is the backbone; area border routers participate in multiple areas.
- Area 0 is the backbone; area border routers participate in multiple areas.
- The area design limits detailed flooding scope; authentication does not encrypt LSAs.
The drawing is a simplified worked example. Follow the linked RFC and its updates for implementation requirements.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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