About Me
Cisco Certified Network Associate (CCNA) - Data Center
1 Data Center Concepts
1-1 Data Center Evolution
1-2 Data Center Infrastructure
1-3 Data Center Services
1-4 Data Center Trends
2 Data Center Network Architecture
2-1 Network Design Principles
2-2 Network Topologies
2-3 Network Virtualization
2-4 Network Security
3 Data Center Switching
3-1 Switching Technologies
3-2 VLANs and Trunking
3-3 Spanning Tree Protocol
3-4 EtherChannel and Link Aggregation
4 Data Center Routing
4-1 Routing Protocols
4-2 Routing Policies
4-3 Routing Redundancy
4-4 Routing Security
5 Data Center Automation and Programmability
5-1 Network Programmability Concepts
5-2 APIs and RESTful Services
5-3 Network Automation Tools
5-4 Network Orchestration
6 Data Center Storage Networking
6-1 Storage Technologies
6-2 Storage Area Networks (SAN)
6-3 Network Attached Storage (NAS)
6-4 Storage Virtualization
7 Data Center Virtualization
7-1 Server Virtualization
7-2 Network Function Virtualization (NFV)
7-3 Hypervisors and Virtual Machines
7-4 Virtual Networking
8 Data Center Security
8-1 Security Concepts
8-2 Access Control
8-3 Threat Detection and Mitigation
8-4 Compliance and Auditing
9 Data Center Operations and Management
9-1 Monitoring and Management Tools
9-2 Capacity Planning
9-3 Troubleshooting Techniques
9-4 Change Management
10 Data Center Technologies and Innovations
10-1 Cloud Computing
10-2 Software-Defined Networking (SDN)
10-3 Network Function Virtualization (NFV)
10-4 Edge Computing
4.1 Routing Protocols

4.1 Routing Protocols

Key Concepts

Static Routing

Static Routing involves manually configuring routes on a router. Administrators define the paths that data packets should take to reach specific destinations. This method is straightforward but lacks flexibility and scalability. Static routes do not adapt to network changes unless manually reconfigured.

Example: Think of static routing as a map with predefined routes. If a road is closed, you need to manually update the map to find an alternative route.

Dynamic Routing

Dynamic Routing uses routing protocols to automatically share routing information between routers. This allows the network to adapt to changes, such as link failures or new network segments, without manual intervention. Dynamic routing protocols include RIP, OSPF, and EIGRP.

Example: Consider dynamic routing as a GPS system that constantly updates routes based on real-time traffic conditions. If a road is blocked, the GPS automatically finds an alternative route.

Interior Gateway Protocols (IGPs)

IGPs are used within an autonomous system (AS) to share routing information between routers. They ensure efficient and reliable communication within a single network. Common IGPs include RIP, OSPF, and EIGRP.

Example: Imagine IGPs as local traffic management systems within a city. They ensure smooth traffic flow within the city boundaries, coordinating with other traffic systems to optimize routes.

Exterior Gateway Protocols (EGPs)

EGPs are used to share routing information between different autonomous systems (ASes). They facilitate communication between different networks, such as between an organization's network and the internet. The most common EGP is BGP (Border Gateway Protocol).

Example: Think of EGPs as international traffic management systems that coordinate traffic flow between different countries. They ensure that data packets can travel efficiently between different networks, even if they use different routing protocols.

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