Introduction of VLAN and VSAN with its benefits, are described in the presentation as per the syllabus of RGPV, BU and MCU for the students of BCA, MCA and B. Tech.

1. Dr Neelesh Jain
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VLAN AND VSAN : BENEFITS

2. Dr. Neelesh Jain 8770193851 Follow me: Youtube/FB : DrNeeleshjain
VLAN : Virtual LAN
Computer networks can be segmented into local area networks
(LANs) and wide area networks (WANs). Network devices such
as switches, hubs, bridges, workstations and servers connected
to each other in the same network at a specific location are
generally known as LANs. A LAN is also considered a broadcast
domain.
A broadcast domain is a network segment in which if a device
broadcast a packet then all the devices in the same broadcast
domain will receive it.

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VLAN : Virtual LAN
A VLAN allows several networks to work virtually as
one LAN. One of the most beneficial elements of a
VLAN is that it removes latency in the network, which
saves network resources and increases network
efficiency. In addition, VLANs are created to provide
segmentation and assist in issues like security, network
management and scalability. Traffic patterns can also
easily be controlled by using VLANs.

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VLAN : Advantages
● Performance –The network traffic is full of broadcast and multicast. VLAN
reduces the need to send such traffic to unnecessary destination.e.g-If the
traffic is intended for 2 users but as 10 devices are present in the same
broadcast domain therefore all will receive the traffic i.e wastage of
bandwidth but if we make VLANs, then the broadcast or mulicast packet will
go to the intended users only.
● Formation of virtual groups – As there are different departments in every
organisation namely sales, finance etc., VLANs can be very useful in order
to group the devices logically according to their departments.
● Security – In the same network, sensitive data can be broadcast which can
be accessed by the outsider but by creating VLAN, we can control
broadcast domains, set up firewalls, restrict access. Also, VLANs can be
used to inform the network manager of an intrusion. Hence, VLANs greatly
enhance network security.

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VLAN : Advantages
● Flexibility – VLAN provide flexibility to add, remove
the number of host we want.
● Cost reduction – VLANs can be used to create
broadcast domains which eliminate the need for
expensive routers.
● By using Vlan, the number of small size broadcast
domain can be increased which are easy to handle as
compared to a bigger broadcast domain.

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VSAN :Virtual Storage Area Network
A virtual storage area network (VSAN) is a logical
partitioning created within a physical storage area
network. This implementation model of a storage
virtualization technique divides and allocates some or
an entire storage area network into one or more logical
SANs to be used by internal or external IT services and
solutions.

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VSAN :Virtual Storage Area Network
n computer networking, a virtual storage area network (VSAN)
is a collection of ports from a set of connected Fibre Channel
switches, that form a virtual fabric. Ports within a single switch
can be partitioned into multiple VSANs, despite sharing hardware
resources. Conversely, multiple switches can join a number of
ports to form a single VSAN. Cisco Systems designed VSANs
modelled after the virtual local area network (VLAN) concept in
Ethernet networking, but applying the idea to a storage area
network.

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BENEFITS OF VSAN
The benefits of VSAN include:
● Performance, since the local server can access data at full speed
and low latency
● Lower infrastructure cost, since there are no networked storage
appliances
● High scalability -- simply put, add more servers and get more
storage
● No boot storms, since OS/app stack images are stored locally
● Unified management -- no storage silo versus server silo
demarcation problems

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