About Me
Cisco Certified Design Professional (CCDP) - Enterprise
1 Enterprise Architecture and Design Principles
1-1 Enterprise Network Design Concepts
1-1 1 Network Design Life Cycle
1-1 2 Design Considerations for Enterprise Networks
1-1 3 Network Segmentation and Micro-Segmentation
1-1 4 Network Security Design Principles
1-1 5 Network Scalability and Performance
1-1 6 Network Resilience and Redundancy
1-1 7 Network Automation and Programmability
1-1 8 Network Virtualization and SDN
1-1 9 Network Management and Monitoring
1-1 10 Compliance and Regulatory Requirements
1-2 Enterprise Network Design Models
1-2 1 Hierarchical Network Design Model
1-2 2 Spine-Leaf Architecture
1-2 3 Modular Network Design
1-2 4 Centralized vs Distributed Network Design
1-2 5 Hybrid Network Design Models
1-3 Enterprise Network Design Tools and Methodologies
1-3 1 Network Design Documentation
1-3 2 Network Design Software Tools
1-3 3 Network Design Methodologies (e g , TOGAF, Zachman)
1-3 4 Network Design Best Practices
2 Enterprise Network Infrastructure Design
2-1 Campus Network Design
2-1 1 Campus Network Topologies
2-1 2 Campus Network Access Layer Design
2-1 3 Campus Network Distribution Layer Design
2-1 4 Campus Network Core Layer Design
2-1 5 Campus Network Wireless Design
2-1 6 Campus Network Security Design
2-1 7 Campus Network Management and Monitoring
2-2 Data Center Network Design
2-2 1 Data Center Network Topologies
2-2 2 Data Center Network Fabric Design
2-2 3 Data Center Network Redundancy and Resilience
2-2 4 Data Center Network Security Design
2-2 5 Data Center Network Virtualization
2-2 6 Data Center Network Automation
2-2 7 Data Center Network Management and Monitoring
2-3 WAN Design
2-3 1 WAN Topologies
2-3 2 WAN Connectivity Options (e g , MPLS, VPN, Internet)
2-3 3 WAN Optimization Techniques
2-3 4 WAN Security Design
2-3 5 WAN Management and Monitoring
2-4 Cloud and Hybrid Network Design
2-4 1 Cloud Network Design Principles
2-4 2 Hybrid Network Design
2-4 3 Cloud Connectivity Options
2-4 4 Cloud Network Security Design
2-4 5 Cloud Network Management and Monitoring
3 Enterprise Network Services Design
3-1 IP Addressing and Subnetting
3-1 1 IPv4 and IPv6 Addressing
3-1 2 Subnetting Techniques
3-1 3 IP Address Management (IPAM)
3-1 4 Addressing for Network Virtualization
3-2 Routing Protocols and Design
3-2 1 Interior Gateway Protocols (e g , OSPF, EIGRP)
3-2 2 Exterior Gateway Protocols (e g , BGP)
3-2 3 Routing Policy Design
3-2 4 Route Redistribution and Filtering
3-2 5 Routing for Network Virtualization
3-3 Switching and VLAN Design
3-3 1 Layer 2 Switching Protocols (e g , STP, VTP)
3-3 2 VLAN Design and Implementation
3-3 3 Trunking and Inter-VLAN Routing
3-3 4 Virtual Switching (e g , VSS, VPC)
3-3 5 Switching for Network Virtualization
3-4 Network Security Services Design
3-4 1 Firewall Design and Implementation
3-4 2 Intrusion Detection and Prevention Systems (IDSIPS)
3-4 3 Network Access Control (NAC)
3-4 4 VPN Design and Implementation
3-4 5 Secure Network Design Best Practices
3-5 Network Management and Monitoring Services Design
3-5 1 Network Management Protocols (e g , SNMP, NetFlow)
3-5 2 Network Monitoring Tools and Techniques
3-5 3 Network Performance Optimization
3-5 4 Network Troubleshooting and Diagnostics
3-5 5 Network Management for Virtualized Environments
4 Enterprise Network Implementation and Optimization
4-1 Network Implementation Planning
4-1 1 Implementation Project Management
4-1 2 Implementation Documentation
4-1 3 Implementation Best Practices
4-1 4 Implementation Testing and Validation
4-2 Network Optimization Techniques
4-2 1 Network Performance Tuning
4-2 2 Network Traffic Analysis and Optimization
4-2 3 Network Latency Reduction Techniques
4-2 4 Network Optimization for Virtualized Environments
4-3 Network Troubleshooting and Diagnostics
4-3 1 Troubleshooting Methodologies
4-3 2 Common Network Issues and Solutions
4-3 3 Network Diagnostics Tools and Techniques
4-3 4 Troubleshooting for Virtualized Networks
4-4 Network Compliance and Audit
4-4 1 Network Compliance Requirements
4-4 2 Network Audit Procedures
4-4 3 Network Compliance Best Practices
4-4 4 Network Compliance for Virtualized Environments
5 Enterprise Network Design Case Studies
5-1 Campus Network Design Case Study
5-1 1 Case Study Overview
5-1 2 Design Considerations
5-1 3 Implementation and Optimization
5-1 4 Lessons Learned
5-2 Data Center Network Design Case Study
5-2 1 Case Study Overview
5-2 2 Design Considerations
5-2 3 Implementation and Optimization
5-2 4 Lessons Learned
5-3 WAN Design Case Study
5-3 1 Case Study Overview
5-3 2 Design Considerations
5-3 3 Implementation and Optimization
5-3 4 Lessons Learned
5-4 Cloud and Hybrid Network Design Case Study
5-4 1 Case Study Overview
5-4 2 Design Considerations
5-4 3 Implementation and Optimization
5-4 4 Lessons Learned
2-1 Campus Network Design

2-1 Campus Network Design

Key Concepts

Campus Network

A Campus Network is a local area network (LAN) that spans multiple buildings within a limited geographic area, such as a university campus or a corporate office park. The primary goal of a Campus Network is to provide high-speed, reliable connectivity between various buildings and departments.

Core Layer

The Core Layer is the backbone of the Campus Network, responsible for high-speed data transfer between different parts of the network. It is designed to be fast and reliable, with minimal latency and packet loss. The Core Layer acts as the central hub, ensuring that data can be quickly routed to its destination.

Example: In a university campus, the Core Layer might consist of high-speed routers and switches that connect different buildings or departments. These devices are optimized for speed and redundancy, ensuring that critical data can be transmitted quickly and without interruption.

Distribution Layer

The Distribution Layer acts as an intermediary between the Core Layer and the Access Layer. It provides policy-based connectivity, aggregation of routes, and traffic management. This layer is responsible for applying network policies, such as Quality of Service (QoS) and access control lists (ACLs), to ensure efficient and secure data flow.

Example: In a corporate campus, the Distribution Layer might include switches that connect to the Core Layer and provide connectivity to multiple Access Layer switches. These switches can apply QoS policies to prioritize critical applications, such as VoIP and video conferencing, while controlling access to certain network segments.

Access Layer

The Access Layer is the point where end-user devices connect to the network. It is responsible for providing access to network resources and applying local security policies. The Access Layer is typically where devices like PCs, printers, and IP phones connect to the network.

Example: In a university campus, the Access Layer might include switches located in each building or classroom. These switches provide connectivity to student and faculty devices, applying security policies to ensure that only authorized users can access the network and its resources.

Redundancy and Resilience

Redundancy and Resilience are critical components of Campus Network Design. Redundancy involves creating backup systems or paths to ensure continuous operation in the event of a failure. Resilience refers to the network's ability to recover quickly from disruptions. Techniques like redundant links, failover mechanisms, and load balancing are used to achieve redundancy and resilience.

Example: In a corporate campus, using multiple Internet Service Providers (ISPs) ensures that if one ISP fails, traffic can be rerouted through the other, maintaining network connectivity without interruption. Additionally, redundant paths between buildings ensure that if one link fails, traffic can be rerouted through an alternative path.

Examples and Analogies

Think of a Campus Network as a well-organized city with a central highway (Core Layer), district roads (Distribution Layer), and local streets (Access Layer). The central highway ensures fast and efficient transportation between districts, the district roads manage traffic flow and apply rules, and the local streets provide access to individual homes and businesses. Redundancy and resilience are like having multiple routes to reach a destination, ensuring that traffic continues to flow even if one route is blocked.

By understanding the 2-1 Campus Network Design, network professionals can create a structured and efficient network architecture that meets the needs of modern enterprises, aligning with the principles of the Cisco Certified Design Professional (CCDP) certification.

© 2024 Ahmed Baheeg Khorshid. All rights reserved.