Module 1 - Campus LAN Design

Question 1

Campus LAN Design

Answer 1

Network infrastructure that provides access to network commuication services and resources for end users over a single floor or building.

Question 2

Campus Network

Answer 2

Interconnecting a group of LANs that are spread over a small geographic area.

Enables communication between devices in a building or group of buildings. Also allows for interconnection to the WAN and Internet Edge at the network core.

Question 3

Flat Network

Answer 3

Does not have any subnets.

Question 4

Enterprise Campus

Answer 4

Divides networks into core, distribution and access modular blocks.

Question 5

Access Layer

Answer 5

Used to grant users and devices access to the network.

Question 6

Distribution Layer

Answer 6

Aggregates the network closets to isolate network problems.

Question 7

Core Layer

Answer 7

This is known as the backbone. It’s an highspeed backbone switch. It switches packets as quickly as possible.

Question 8

The Campus Lan Network Design

Answer 8

The traditional model is known as an hierachical design. The core/distribution layers can be collapsed which is known as a ‘collapsed core’.

The Access layer can be dual honed into distribution switches.

Distribution layer - aggregates access nodes and uplinks.

Core Layer- Is lean and mean, provides a way to get up and out. Usual dual power, dual cpu. Reliable and fast convergence, usually is layer 3 and routes.

Question 9

When is a Core needed?

Answer 9

Core cleans up the network and gives a clear demarcation area.

There’s no hard and fast rules and one size does not fit all.