7.3 - Virtual Local Area Networks (VLANs) Flashcards
Networks in which computers are assigned to LAN segments by software rather than by hardware
Virtual LANs
A __________ allows a network administrator to create groups of logically networked devices that act as if they are on their own independent network
VLAN
Act as an independent LAN network
VLAN
Allows PCs to be separated although they share the same infrastructure
VLAN
Can be named for easier identification
VLAN
With VLANs, it’s possible that PCs connected to the same switch may belong to different __________
networks
VLANs are significantly more complex, so they usually are used only for __________ networks
large
VLAN __________ function in the same way as physical LAN segments or subnets
segment
Computers in the same VLAN act as though they are connected to the same physical switch or hun in a certain __________
subnet
A VLAN is a __________ separate IP subnetwork
logically
Allows multiple IP networks and subnets to exist in the same switched network
VLAN
Ability to manage the flow of traffic
Benefits of VLANs
Ability to prioritize traffic
Benefits of VLANs
VLAN Benefits:
- Security
- Cost Reduction
- Higher Performance
- Broadcast Storm Mitigation
- Improved IT Staff Efficiency
- Simpler Project or App Management
Groups that have sensitive data are separated from the rest of the network
Security
Less need for expensive network upgrades and/or equipment; more efficient use of existing bandwidth and uplinks
Cost Reduction
Dividing flat layer 2 networks into multiple logical workgroups (or broadcast domains) reduces unnecessary traffic on the network
Higher Performance
VLANs reduces the number of devices that may participate in a broadcast storm; LAN segmentation limits broadcast storms
Broadcast Storm Mitigation
VLANs make it easier to manage the network
Improved IT Staff Efficiency
VLANs aggregate users and network devices to support business or geographic requirements
Simpler Project or App Management
