Topic 3 Network Hardware Part 2 Switches_3 Flashcards
What is a VLAN?
Definition: A logical grouping of ports into a network broadcast domain.
- Independent LAN network
- Allows student and faculty PCs to be separated although they share the same infrastructure
- Can be named for easier identification
All devices in a VLAN must have the same IP address to communicate. True or False
True
Different VLAN should have different IP addresses. True or false?
True
When a broadcast is sent from a computer in that VLAN, it can go to computers in the other VLAN. True or False
False
What does a VLAN divide?
Divides a switch into multiple disconnected switches with separate broadcast domains.
Do computers know they are part of a VLAN?
No, only the switch has the VLAN information to make connections to other ports in the same VLAN
What are the benefits of a VLAN?
- Improves bandwidth even more, as there are less computers in a LAN
- Improves security as no data is allowed from one VLAN to another
- Allows for network growth - can add more devices with VLANs and still have an effective network
- Can make more networks and group devices by logical function
What are the 2 thing needed for devices to communicate in a VLANed network?
- Devices must be in ports in the same VLAN
- Must have same network IP address
What is needed to communicate across a VLAN?
A router
State the types of VLANs.
1, Static VLAN
2. Dynamic VLAN
3. Voice VLAN
What is trunking for in VLANs?
Send multiple VLAN signals from a one end to another end
How to configure switchport to trunk mode?
switchport mode trunk or switchport mode dynamic auto (automatically learn if access port or trunk port)
How to configure trunks and VLANs
- Create the VLANs
- Assign switch ports to VLANs statically
- Verify VLAN config.
- Enable trunking on the inter-switch connections
- Verify trunk config.
