Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
Multiple Switch Ethernet LAN
|
- 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 |
|
|
Hierarchical Ethernet LANS
|
- Uses high speed links between the workgroup switches and core switches
- |
|
|
Advanced Ethernet Concepts
|
Rapid Spanning Tree Protocol
Ethernet Virtual LANs (VLANS) Managed Switches Power Over Ethernet (POE) |
|
|
Rapid Spanning Tree Protocol
|
- allows recovery from a single point of failure
- allows backup links (disabled until needed) (planning backup links is difficult) |
|
|
Ethernet Virtual LANs (VLANS)
|
- Allows communication only between hosts on the same VLAN.
- Isolates the switches - Subdivides the networks - Reduces traffic on host broadcasts - Provides some security |
|
|
Managed Switches
|
- intelligent switches
- cost more than dumb switches - reduces labor costs - reduces management costs which fat offsets switch cost |
|
|
Power Over Ethernet (POE)
|
- 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 |
|
|
single points of failure
|
ethernet's hierarchy creates ____________
|
|
|
Ethernet Security – 802.1X
|
security issue of others plugging into the network, giving access to network without requiring a firewall
solution: require authentication to plug into Ethernet switch |
