What are the three inter-VLAN routing options?
There are three inter-VLAN routing options:
- Legacy Inter-VLAN routing: This is a legacy solution.
- Router-on-a-Stick: This is an acceptable solution for a small- to medium-sized network.
- Layer 3 switch using switched virtual interfaces (SVIs): This is the most scalable solution for medium to large organizations.
What are the types of inter-VLAN routing?
There are two ways in which inter-VLAN routing can be accomplished.
- Traditional inter-VLAN routing.
- Router-on-a-stick.
What is inter-VLAN routing used for?
Inter-VLAN routing refers to the movement of packets across the network between hosts in different network segments. VLANs make it easier for one to segment a network, which in turn improves the performance of the network and makes it more flexible, since they are logical connections.
What device is needed for inter-VLAN routing?
router
Whenever hosts in one VLAN need to communicate with hosts in another VLAN, the traffic must be routed through a routing device. This process is known as inter-VLAN routing. To successfully exchange information between VLANs, you need a router or a Layer 3 switch.
How many subinterfaces does a Cisco router have?
You can partition one physical interface into up to 4094 different subinterfaces, one for each VLAN.
What is the purpose of subinterface?
Subinterfaces divide the parent interface into two or more virtual interfaces on which you can assign unique Layer 3 parameters such as IP addresses and dynamic routing protocols. The IP address for each subinterface should be in a different subnet from any other subinterface on the parent interface.
What is VLAN router?
Routers connect LANs, routing the traffic to each appropriate port. A virtual LAN (VLAN) is a local area network that maps devices on a basis other than geographic location, for example, by department, type of user, or primary application.
How many subinterfaces can be configured on an interface Cisco?
What are subinterfaces used for?
A subinterface is a virtual interface created by dividing one physical interface into multiple logical interfaces. A sub-interface in a Cisco Router uses the parent physical interface for sending and receiving data.
What is VLAN subinterface?
This module provides command line interface (CLI) commands for configuring 802.1Q VLANs on the Cisco CRS RouterCisco NCS 6000 Series Router. To use commands of this module, you must be in a user group associated with a task group that includes appropriate task IDs.
Do you need a router for VLAN?
VLANs don’t need routers to communicate. Well, they usually do, but not necessarily. They just need some “external help”.
Why do we need subinterfaces?
One of the uses of subinterfaces is to provide unique Layer 3 interfaces to each VLAN that is supported by the parent interface. In this scenario, the parent interface connects to a Layer 2 trunking port on another device.
How many subinterfaces can be configured on an interface?
What is a subinterface used for?