Author Topic: Advantages of using VLAN ....?  (Read 925 times)

sandeep2444

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Advantages of using VLAN ....?
« on: December 24, 2014, 12:05:52 PM »
Hi,


1. Performance :-

As mentioned above, routers that
forward data in software become a
bottleneck as LAN data rates increase. Do
ing away with the routers removes this
bottleneck.

2. Formation of virtual workgroups :-

Because workstations can be moved from one
VLAN to another just by changing the configurat
ion on switches, it is relatively easy to put
all the people working together
on a particular project all into a single VLAN. They can
then more easily share files and resources with each other.
To be honest, though, virtual workgroups sound
like a good idea in theory, but often do
not work well in practice. It turns out that us
ers are usually more interested in accessing
company-wide resources (file servers, printe
rs, etc.) than files on each others' PCs.

3. Greater flexibility :-

If users move their desks, or just
move around the place with their
laptops, then, if the VLANs are set up the righ
t way, they can plug their PC in at the new
location, and still be within the same VLAN.
This is much harder when a network is
physically divided up by routers.

4. Ease of partitioning off resources :-

If there are servers or other equipment to which
the network administrator wishes to limit acce
ss, then they can be
put off into their own
VLAN. Then users in other VLANs can be given access selectively


thanks,

santhoshidatasoft

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Re: Advantages of using VLAN ....?
« Reply #1 on: December 27, 2014, 08:59:28 PM »
A virtual LAN (VLAN) is a logical grouping of network devices in the same broadcast domain that can span multiple physical segments.

Advantages of VLANs:

Increase the number of broadcast domains while reducing their size.
Provide additional security.
Increase the flexibility of network equipment.
Allow a logical grouping of users by function, not location.
Make user adds, moves, and changes easier.

Subnets and VLANs
Logically speaking, VLANs are also subnets. A subnet, or a network, is a contained broadcast domain. A broadcast that occurs in one subnet will not be forwarded, by default, to another subnet. Routers, or layer-3 devices, provide this boundary function. Switch provide this function at layer 2 by VLAN.

Scalability
VLANs provide for location independence. This flexibility makes adds, changes, and moves of networking devices a simple process. It also allows you to group people together, which also makes implementing your security policies straightforward.
IP protocols supports 500 devices per vlans.

Pavithra M

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Re: Advantages of using VLAN ....?
« Reply #2 on: December 29, 2014, 02:47:25 AM »
VLANs provide the following benefits:

Security Separating systems that have sensitive data from the rest of the network decreases the chances that people will gain access to information they are not authorized to see.

Performance/Bandwidth Careful monitoring of network use allows the network administrator to create VLANs that reduce the number of router hops and increase the apparent bandwidth for network users.

Broadcasts/Traffic flow Since a principle element of a VLAN is the fact that it does not pass broadcast traffic to nodes that are not part of the VLAN, it automatically reduces broadcasts. Access lists provide the network administrator with a way to control who sees what network traffic. An access list is a table the network administrator creates that lists which addresses have access to that network.

Departments/Specific job types Companies may want VLANs set up for departments that are heavy network users (such as multimedia or engineering), or a VLAN across departments that is dedicated to specific types of employees (such as managers or sales people).

siljy.datasoft

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Re: Advantages of using VLAN ....?
« Reply #3 on: January 12, 2015, 10:37:14 PM »
VLANs provide the following benefits:

Security Separating systems that have sensitive data from the rest of the network decreases the chances that people will gain access to information they are not authorized to see.

Performance/Bandwidth Careful monitoring of network use allows the network administrator to create VLANs that reduce the number of router hops and increase the apparent bandwidth for network users.

Broadcasts/Traffic flow Since a principle element of a VLAN is the fact that it does not pass broadcast traffic to nodes that are not part of the VLAN, it automatically reduces broadcasts. Access lists provide the network administrator with a way to control who sees what network traffic. An access list is a table the network administrator creates that lists which addresses have access to that network.

Departments/Specific job types Companies may want VLANs set up for departments that are heavy network users (such as multimedia or engineering), or a VLAN across departments that is dedicated to specific types of employees (such as managers or sales people).

thanks

soman.datasoft

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Re: Advantages of using VLAN ....?
« Reply #4 on: January 21, 2015, 05:05:00 AM »
Segmenting a large VLAN to smaller VLANs is cheaper than creating a routed network with routers because normally routers costlier than switches.

shajahan

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Re: Advantages of using VLAN ....?
« Reply #5 on: July 15, 2015, 11:02:10 AM »
A virtual LAN (VLAN) is a logical grouping of network devices in the same broadcast domain that can span multiple physical segments.

Advantages of VLANs:

Increase the number of broadcast domains while reducing their size.
Provide additional security.
Increase the flexibility of network equipment.
Allow a logical grouping of users by function, not location.
Make user adds, moves, and changes easier.

Subnets and VLANs
Logically speaking, VLANs are also subnets. A subnet, or a network, is a contained broadcast domain. A broadcast that occurs in one subnet will not be forwarded, by default, to another subnet. Routers, or layer-3 devices, provide this boundary function. Switch provide this function at layer 2 by VLAN.

Scalability
VLANs provide for location independence. This flexibility makes adds, changes, and moves of networking devices a simple process. It also allows you to group people together, which also makes implementing your security policies straightforward.
IP protocols supports 500 devices per vlans.