Desktop systems links 10 Mbps to 100 Mbps
-Into layer 2 switch
Wireless LAN connectivity available for mobile users
Layer 3 switches at local network's core
- Form local backbone
- Interconnected at 1 Gbps
- Connect to layer 2 switches at 100 Mbps to 1 Gbps
Servers connect directly to layer 2 or layer 3 switches at 1 Gbps
Lower-cost software-based router provides WAN connection
Circles in diagram identify separate LAN subnetworks
MAC broadcast frame limited to own subnetwork
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