The Advantages of Using VLSM

The two main reasons for using VLSM are as follows:

• To make efficient use of the available addressing

• To enforce a good hierarchical design, allowing summarization and documentation Figure 3-5 illustrates the use of VLSM for summarization and documentation.

Figure 3-5 VLSM Used to Support the Hierarchical Design

Regions

Figure 3-5 VLSM Used to Support the Hierarchical Design

Regions

Campuses

New York

DISTRIBUTION

Francisco San Jose Rafael

Campuses

Francisco San Jose Rafael

Buildings

Building Building Building 1 2 3

Floors

New York

DISTRIBUTION

ACCESS

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