Determining VLANs, Networks, and Key IP Addresses (2) Flashcards
(27 cards)
How many Networks are there?
Determined by the amount of VLAN’s used
How are VLAN’s determined?
Case-by-case basis
What is the function of VLAN’s?
Segment L2 broadcast traffic
What is a requirement for each VLAN?
Requires a separate network to interconnect VLAN’s
What devices likely have their own VLAN?
- Printers
- Security Cameras
- WiFi devices
What does a VLAN correspond to?
L2 traffic (frames)
What are VLAN ID’s used for?
Frames are tagged with VLAN ID’s
Where are VLAN ID’s set?
On an Access Switch on a port-by-port basis
What does L2 traffic in a VLAN not allow?
Cannot be sent to a separate VLAN
What is an example of L2 broadcast?
Who has the IP Address of: 192.168.1.1 (default gateway)?
Are VLAN ID’s unique?
No, they can be reused in different sites/buildings
What does a Network correspond to?
L3 traffic (packets)
How can L3 Traffic be sent?
Can be sent to separate networks using a router
What should Network Addresses be?
Unique
What is a unique VLAN/Network used for?
Management Devices communication
What are examples of devices on the Management VLAN/Network?
- Access Switches
- Distribution Switches
- Wireless Access Points
How does VLAN Traffic Flow?
Access Switch determines VLAN of traffic and broadcasts to assigned ports
What are Trunk Ports?
Connections between switches that all VLAN traffic can traverse over
What is the example of VLAN broadcast process?
Room A-1 Printer broadcasts to VLAN 100, received and forwarded by switches
What determines how you choose Network Addresses per VLAN?
Your Network Requirements
What is the format for Generic Addressing Approach?
10.<site/building>.<vlan>.0/24</vlan>
What is the Default Gateway for a VLAN/Network?
IP Address assigned to an SVI (Switch Virtual Interface)
What is a characteristic of Distribution Switches?
They are L2 and L3 devices
Are Trunk Links used between Distribution and Core Switches?
No, to avoid propagating all broadcast traffic
