Certifications Interview Question:

What is VLSM?

Submitted by: Administrator

VLSM stand for Variable Length Subnet Mask.VLSM originally
defined in RFC 1812, allows you to apply different subnet
masks to the same class address space.

Remember that the best subnet mask for point-to-point links
is 255.255.255.252(130).

VLSM allows you to use more than one subnet mask for given
class address.Remember the two major advantages of VLSM:
More efficient use of address and route
summarization/aggregation.
Submitted by: Administrator