Network Design

Network Foundational Stone From Basic Theory to Advanced  Application By  郭貫林 Sphinx Kuo

Operation within Our Equipment • • L2 Switch (Cisco 2960) • Multilayer Switch MLS(Cisco 3550)

Traditional L2 Switch Operation within a layer layer 2 switch

Multilayer Switch

Network DesignScalability and Multiplexing

Scalability

Full-mesh Phone Network 

Scalability

Hub and Spoke Phone Network 

Multiplexing

• To view as a Data Stream • Use Multi-Channel in one Cable and dynamic adjust it Multi-Channel.

Hierarchical Design Model •  Access Layer ( 存取層 ) • Distribution Layer ( 分送層 ) • Core Layer ( 核心層 )

Tradi radition tional al Mode Modell

Traditional Model Lack • Implementing redundancy  •  Adding Internet access and security  •  Accounting for remote access • Locating workgroup and enterprise services

Modern Model

Our Vision of Our Future Network

Aboutt Vlan And Trunk Abou

Virtual LANs

Trunk

Switch Port Aggregation with wi th EtherChannel • Hope to upgrade to Higher Bandwidth. • Cannot really reach the ideal value we hope. • Two types: ▫ PAgP – Port Aggregation Protocol ▫ LAC LACP P – Link Link Aggreg Aggregati ation on Contr Control ol Proto Protocol col

Spanni Spa nning ng Tree Tree • Prevent Bridging Loop •