Week 7: VLAN, InterVLAN Routing Flashcards
Virtual Local Area Networks (VLANs) are a way to what?
Organize & Manage switching resources
Where are VLAN’s widely deployed?
Enterprise Environments
The ports on a switch are part of what?
A default LAN
When all the ports on a switch are in the same default LAN, that meas what?
they are in the same segment & broadcast domain
What is a VLAN?
A partitioning of the single Broadcast Domain of a switch into several Broadcast Domains
What are the reasons for using VLANs?
When there is an administrative need to separate or integrate network traffic
The traffic interest is the same as the resources that they access
What limitations have modern switches overcome?
The traditional distance limitations of Ethernet
How far can a Switch environment span?
A Switch Environment can logically or virtually span over several locations
What is a Trunk?
A link that is designed to carry multiple signals simultaneously to provide network access between two points
How does a trunk function?
A Trunk labels frames with the corresponding VLAN number
True or False: A PC connected to a VLAN port would see the VLAN as a VLAN
False, a PC connceted to a VLAN port would see the VLAN as a normal LAN
What are the two types of ports?
Access
Trunk
True or False: VLANs are LANs
True
True or False: VLANs are separate subnets
True
Where is trunking required?
For inter-VLAN routing
What is Trunking?
The process of using ISL or 802.1q to allow multiple VLAN traffic on the same link
What is Router-on-a-stick?
when a single link us used to connect a router with the switch containing multiple VLANs
How is routing-on-a-stick implemented?
by creating sub-interfaces on a router
What are the two standards for Trunk Tagging Systems?
Proprietary Cisco Inter-Switch Link ISL
IEEE802.1Q - Open Standard for Virtual Bridged LANs
