What is VLSM? how to Calculate VLSM? where it is use and
why?
Answers were Sorted based on User's Feedback
Answer / pardeep kumar
vlsm is a variable length subnet mask.
it is classless network.
in the classless network,we take a large network and convert into small network using the different subnet mask into a network.
that is called a vlsm.
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Answer / avinas kumar
Variable Length Subnet Mask. It is created many subnet
from One network.
2.Improve network performance
3.Avoid waste ip address
4.VLSM calculation depends on No of host using in single
network
5.its is used to reduced the size of routing
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Answer / vaibhav
VLSM (variable length subnet mask) is ipv6 classless ip
addressing. Use to subnet an already subnettted ip adress.
how to calculate vlsm?
first if you have a topology you must determine which
network have the greatest number of host. then assign it as
the first subnet.
ex: ISP wan = 20 Host
IP AD=192.168.1.0
isp wan have a 20 host so its means
20host delta=32 subnet mask=255.255.255.224
ADD THE DELTA=32 IN THE IP ADRESS :
192.168.1.0
+ 32
-----------
192.168.1.32
configuration:
192.168.1.0/27
192.168.1.32 IS THE BROADACST ADRESS.
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