What is the Difference between vlan vs lan

In this article we will explain the difference between vlan vs lan and will discuss both in detail.  

Difference between vlan vs lan

LAN refers to The term "Local Area Network is a collection of network devices that enable connection between devices. In contrast, VLAN refers to Virtual Local Area Network that is utilized to improve the performance of the LANs (Local Area Networks).

To prevent overloaded and congestion, networks are divided into virtual LANs and workstations are created. The LAN's capacity was previously decreased, which resulted in congestion in the network. So Vlans can be a solution for network congestion.

What is LAN?

"LAN" is a short form for local area networks, which allows multiple computers to be connected in one location or segment of devices. It can comprise at least two computer systems, or thousands of computers and other devices in a large company as they share the same network, but are closed to the outside world. Today, LAN can be described as a single broadcasting area. which means that if one broadcasts to the entire network, everyone else will be able to receive it. Moreover, you can accomplish different other functions like printing sharing, file management, and working group scheduling and it will allow increase the efficiency of work

What is VLAN?

VLANs enable administrators to restrict access to a specific user group by dividing workstations into separate segments of the LAN. If users change their computers they don't have to reconfigure the network or switch VLAN groups.

Difference between LAN and VLAN:

Broadcast and limitation:

The major distinction between the LAN and  VLAN is the broadcast domain. LAN works under the signal broadcast domain whereas VLAN is a multi-channel broadcast domain. In local area networks, the Packet is distributed to each device, whereas in a virtual local area network the packet is delivered to specific broadcast domains.

Following are the some key differences between LAN and VLAN:

• LAN means Local Area Network whereas VLAN is a short form of LAN and refers to Virtual Local Area Network.
• The devices used for LAN are Hubs, Routers and switches. Whereas VLAN are created virtually on the Switches.
• The LAN works on differnt speeds like Ethernet (10MBPS), FE (100MBPS), GE (1000 MB/S). On the other hand VLAN supports different technologies like ATM, FDDI, ethernet and infiniband.
• The cost of Local Area Network is high as compared to VLAN.
• The latency is also high in case of Local Area Network as compared to VLAN, which has low.

Pros and Cons of LAN:

Pros:

• Low cost to start and build a network
• Easy configuration
• Easy to extend

CONs

• Security issue

Pros and Cons of VLAN:

Pros

• More efficient performance as compare to LAN
• More speedy transmission of data
• You need to configure VLANs once then less network administration is required

Cons:

• Port constrain
• It is required to use a more advanced device to establish VLAN

FAQs

Is VLAN faster than LAN?

The latency of the LAN is high because a single broadcast domain is utilized and creates the collision. VLAN has low latency. In terms of security, LAN is not as secure as VLAN due to the fact that it limits the transmission of packets to the ports that are not needed by isolating the VLAN users from each other.

What are the types of VLANs?

Following are the major types of VLANs:

• Default VLAN
• Native VLAN
• Data VLAN
• Voice Vlan
• Management VLAN

Does home need a VLAN?

Normally VLANs are created in office networks to manage the network more efficiently. But VLANs are worth creating within a home network to separate devices, increase the security of the network and help make it easier and more organized to manage the home network configuration. They are fairly simple to set up and require only the use of a switch for networks that support VLAN tags.

Conclusion:

VLAN is an extension of LAN in which the capability of a standard LAN is enhanced by partitioning the LAN into a number of broadcast domains. This division logically creates many LANs with the same switch or bridge thus, reducing costs and traffic while increasing performance, efficiency, and security. It also facilitates troubleshooting and managing.

VXLAN VS VLAN DIFFERENCE BETWEEN VLAN & VXLAN

VXLAN VS VLAN | DIFFERENCE BETWEEN VLAN & VXLAN

This article is about the topic i.e. vxlan vs vlan. VXlan (virtual extensive local area network) is the modern form of vlan and a new concept in network IT industry. VXLAN protocol or concept is introduced by two famous networking companies Cisco and VMware in 2010-2011. Later Intel, Broadcom and the other stack holder of network industry also contribute to develop this protocol.

This article is for giving you an overview of differences of these two Protocols VXLAN VS VLAN. But before going into detail of difference let learn little more about the VXLANs.

What is virtual extensive LAN or VXLAN?

Virtual Extensible LAN (VXLAN) protocol are introduced to support more VLANs on network devices in cloud computing.

Basically VXLAN technology can provide the same services as VLAN does, but with better extensibility & flexibility. VXLAN used to running a Layer 2 network and extending it over a Layer-3 network. For this VXLAN uses MAC-in-UDP encapsulation.

How Does Virtual Extensible LAN Work?

Virtual Extensible LAN is an overlay protocol which allows you to give Layer 2 connections over an intervening Layer-3 network by encapsulating/tunneling Ethernet packet in a VXLAN frames that includes IPs. Network-Devices which support VXLANs are known as virtual_tunnel endpoints VTEPs, normally these are end hosts, switches or routers. Virtual tunnel endpoints encapsulate Virtual Extensible LAN’s traffic and de-encapsulate that traffic when it leaves the VXLAN-tunnel. Virtual tunnel endpoints add different fields to encapsulate an Ethernet-frame. Following are the field added by VTEPs in Ethernet frame.

·         Outer IP source address (IP of the tunnel-source Virtual tunnel endpoints (VTEP)

·         Outer IP destination address (IP address of tunnel_endpoint Virtual tunnel endpoints  VTEP)

·         MAC of the tunnel source VTEP

·         Outer MAC destination address

Now time to discuss some of the differences of vxlan vs vlan:

SR	vxlan	vlan
1	VLAN are used to divide the network into several broadcast domains. In each broadcast-domain, we can communicate with each other freely.	VXLAN provide layer 2 overlay networks on top of a layer-3 using MAC-in-UDP encapsulation. In easy words, VXLAN offer same services as VLAN, but with greater extensibility &  flexibility
2	With VXLAN you can have 16 million VLAN IDs in an administrative domain.	VLAN identifiers are only 12 bits long and can provide 4094 VLANs.
3	VLANs are used to solve problems like Layer 2 network isolation, flood and as routing interface. VLAN supporting function is now available in most systems and network equipment such as Ethernet switches, routers and firewalls.	VXLAN provide layer 2 overlay networks on layer-3 using MAC-in-UDP and provide the more VLANs.
4	VXLAN technology is being used in cloud computing environment with large network data Centre consist of many devices.	VLAN protocol also support large networks but as compare to VXLAN there are only 4094 VLANs available.
5	VM can migrate between servers that exist in separate Layer 2 domains by tunneling the traffic over Layer 3 networks	Not available in VLAN
6	VXLAN uses Layer-3 routing-protocol to use all the available parts with technologies like Equal cost multipath Routing.	In case of VLAN there is STP which blocks redundant paths and hence allows using only half of available_paths.
7	VXLAN are Flexible & suitable to scaling out a large cloud network.	VLAN are Less flexible for multi-tenant network.
8	VXLAN provide more security as compare to VLAN. Due to the structure of a VXLAN, tunneled traffic can utilize traditional security options, which authenticate and encrypt the traffic.

I hope this article is informative and helpful for you, Let me know in commends if I miss some differences, I will update it for other community. You can share this on social media.

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