LAN segmentation

5 pts.
Tags:
LAN
LAN administration
What are the pros and cons of LAN segmentation?

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Pros:

Manageability
Security
Scalability
Broadcast restriction

Cons:

Need a router or L3 switch that supports L3 segmentation

Discuss This Question: 2  Replies

 
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  • TomLiotta
    Obviously, a pro is that you have multiple segments you can use and a con is that you have to handle multiple segments. But that's a pretty dumb answer. Can you explain a business reason for asking a question that appears to be homework? -- Tom
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  • James Murray
    Your question is very general, "LAN Segementation" could mean a lot of things.  We may know too many ways to answer the question.  Tome is right though, segementing a LAN just means dividing up a segment of an IP Segment.  Large segments provide you with lots of IP numbers to but become difficult to manage.  Segementation allows the administrator to define a specific set of rules of behaviour for each segement. So lots of subdiveded segments mean you can delineate the management of the whole segement.  On the other hand each time you subdivide a segement you lose some of the IP numbers in each segment for managment purposes.  So each time you divide a segment you lose the a certain number of IP numbers that could have been assigned to network resources (including users.)  Additionally, as segments are divided into more and more sub-segments, management becomes more difficult.  Each segement requires it's own set of rules.  each set of rules needs to be managed and updated as the traffic on the network changes.Hope that helps answer your question?
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