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9 Cards in this Set
- Front
- Back
Multiple Switch Ethernet LAN
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- Uses Multiple switches to connect
- Changes based on the MAC address - Every switch has a switching table that links MAC addresses to port numbers - Multiple MAC addresses can exist for the same port based on different switches |
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Hierarchical Ethernet LANS
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- Uses high speed links between the workgroup switches and core switches
- |
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Advanced Ethernet Concepts
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Rapid Spanning Tree Protocol
Ethernet Virtual LANs (VLANS) Managed Switches Power Over Ethernet (POE) |
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Rapid Spanning Tree Protocol
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- allows recovery from a single point of failure
- allows backup links (disabled until needed) (planning backup links is difficult) |
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Ethernet Virtual LANs (VLANS)
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- Allows communication only between hosts on the same VLAN.
- Isolates the switches - Subdivides the networks - Reduces traffic on host broadcasts - Provides some security |
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Managed Switches
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- intelligent switches
- cost more than dumb switches - reduces labor costs - reduces management costs which fat offsets switch cost |
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Power Over Ethernet (POE)
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- supplies power down the line to devices connected by UTP; no need for separate power line to device
- used with VOIP, Wireless Access Points, Cameras 25 watts per device |
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single points of failure
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ethernet's hierarchy creates ____________
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Ethernet Security – 802.1X
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security issue of others plugging into the network, giving access to network without requiring a firewall
solution: require authentication to plug into Ethernet switch |