<Jeremy's IT Lab> Day15: Subnetting(Part3)

Subnetting(Part3)

 

FLSM vs VLSM

FLSM( Fixed-Length Subnet Masks):

Class A, B, C..

 

VLSM( Variable-Length Subnet Masks):

: each subnet use different subnet length

>>steps

1) Assign the largest subnet at the start of the address space

2) Assign the second-largest subnet after it

3) Repeat the process until all subnets have been assigned

 

Pointt-to-point connection (avoid /31)

>> /30

 

* additional Practice:

http://www.subnettingquestions.com/

subnettingquestions.com - Free Subnetting Questions and Answers Randomly Generated Online

http://subnetting.org/

subnetting.org - Free Subnetting Questions and Answers Randomly Generated Online

https://subnettingpractie.com/

 

 

 

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Acronyms:

• FLSM : Fixed-Length Subnet Masks
• VLSM : Variable-Length Subnet Masks