Question

“The primary Cisco Enterprise Architecture modules include Enterprise Campus, Enterprise Edge, Service Provider Edge, and Remote”. Class if you divide your home network in each of these modules then what device/part of the network will fall in each module?

Answer 1

The Enterprise Campus Module describes the recommended methods to create a scalable network. A campus network is a building or group of buildings connected into one enterprise network that consists of many LANs. A campus is generally limited to a fixed geographic area, but it can span several neighboring buildings

The Enterprise Edge Module provides connectivity for voice, video, and data services outside the enterprise. It has 4 submodules. The e-commerce submodule enables enterprises to support e-commerce applications through the Internet.  The Internet submodule of the enterprise edge provides internal users with secure connectivity to Internet services such as public servers, email, and DNS. The VPN/remote access submodule of the enterprise edge provides remote-access termination services, including authentication for remote users and sites.  The WAN submodule uses various WAN technologies for routing traffic between remote sites and the central site. Enterprise WAN links include technologies such as Multiprotocol Label Switching (MPLS), Metro Ethernet, leased lines, Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH), PPP, Frame Relay, ATM, cable, digital subscriber line (DSL), and wireless.

The Service Provider Edge provides connectivity between the enterprise campus module to the remote enterprise data center, enterprise branch, and enterprise teleworker modules.The SP edge module Spans across large geographic areas in a cost effective manner, Converges voice, video, and data services over a single IP communications network, Supports QoS and service level agreements and Supports security using VPNs (IPsec / MPLS) over Layer 2 and Layer 3 WANs.

The Remote functional area is responsible for remote connectivity options. It has 3 modules. The enterprise branch module includes remote branches that allow employees to work at noncampus locations. These locations are typically responsible for providing security, telephony, and mobility options to employees, as well as general connectivity into the campus network and the different components located inside the enterprise campus. The enterprise teleworker module is responsible for providing connectivity for workers who operate out of different geographically dispersed locations, including home offices, hotels, or customer/client sites. The teleworker module recommends that mobile users connect to the Internet using the services of a local ISP, such as cable modem or DSL. VPN services can then be used to secure communications between the mobile worker and central campus. The enterprise data center module is a data center with all of the same functional options as a campus data center, but exists at a remote location. This provides an added layer of security as the offsite data center can provide disaster recovery and business continuance services for the enterprise.

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