CIS 83 week 1 Class website Syllabus review Course outline Introductions Hierarchical network design

Hierarchical Network Design Advantages Scalability Conceptual Access layer Distribution layer Core layer

Access Layer End user access to the network

Distribution Layer Aggregation of the wiring closet connections Broadcast/multicast domain definition Virtual LAN (VLAN) routing Access to core and beyond Any media transitions that need to occur Security

Core Layer If it get to the core it belongs on the core Little packet manipulation/filtering The core layer is often referred to as the backbone Collapsed core

Fault Tolerance Access layer connections to Distribution Layer Distribution Layer connections to Core