- Topic 1 – Cisco SONA
- Topic 2 – Cisco Enterprise Architecture
- Core – High end switching. Backbone of the network.Uses CEF and very little policy. Able to adopt to changes quickly. Optimizes transport of communication. Multilayer switching.
- Distribution – policy based connectivity. This is agregated in wiring closets. For the WAN, its the edge of the campus and provides policy based connectivity (QoS, Security). Usually multi layer switching.
- Access – Local and remote access. Access to both wired and wireless device. Connects to the WAN, Data Center, PSTN and Internet. For the WAN, its for teleworkers and remote sites. Usually L2 switching, IDS,IPS, ASA
Service Oriented Network Architecture (SONA)
Connects all the components of the IT Infrastructure to provide intelligence of the network. Components include:
- Intergrated Network Systems layer – Campus, data center, branch, enterprise edge, WAN,MAN, Teleworker. All IT resources are interconnected – servers etc. The customer has anywhere, anytime connectivity.
- Intergrated Network services layer _ Management services, Security, Storage, Voice and collaboration, Identity services, Network Infrastructure Virtualization.
- Application layer – business applications (Sharepoint, E-comm) and Collaboration level (VoIP, Instant messaging services, Unified messaging, Cisco unified meeting Place, Contact center)
Benefits of SONA.
- Functionality – supports company needs.
- Scalability – enables the company to grow and expand.
- Availability – system uptime and reliabilty
- Performance – responsiveness, maximization
- Manageability – can control, monitor, fault detection and toubleshoot organization
- Efficiency – make sure that services are delivered within budget and as expected.
Supports application awareness. Provides intelligence of the network.
Include the following:
- Voice Services – IP Telephony
- Security Services – confidentiality and overal protection of the network
- Mobility Services – 802.1X and EAP, Wireless Services.
- Storage services – SAN
- Compute Services
- Identity Services.
Cisco Enterprise Architecture
Service Provider Edge – Provides Internet and voice services that go outside the enterprise. Has Security, SLA,
Enterprise Edge – Has several modules (WAN, Ecommerce, Internet Module and Remote access layer)
Enterprise Campus – combines switching and routing. Multicast support, QoS, Voice and Video, Protecting against malware, 802.1x solutions, can use IPSec and MPLS VPNs. It is broken into Data center, Campus backbone (high speed pipes), Building distribution (most of the policies are implemented here), Building Access layer.