About this video
Enterprise network design must account for the possibility of hardware failure or link outages, and redundancy is the primary strategy for ensuring continuous availability. Rather than connecting sites or network segments over a single path, a redundant topology provides two or more routes between locations, so that no single point of failure can bring down communication across the entire network.
When a router or link fails in a redundant architecture, traffic automatically shifts to the remaining available path, maintaining connectivity between sites with minimal or no disruption. This design principle applies broadly across enterprise environments and is a foundational consideration when planning infrastructure that must meet high availability requirements.
What you'll learn
- Explain how redundant network paths ensure continuous connectivity between enterprise sites in the event of a link or router failure.
What's covered
Network Redundancy
- Enterprise Level Services
- Network Diagram
- Multiple LAN Connections
- Two Distinct Paths
- Redundant Path Benefits
- Router Failure Tolerance
- Maintained Site Connectivity
Key terms
- Redundancy
- The duplication of critical components or systems to increase reliability and availability.
- Failover
- The automatic switching to a redundant system or component when the primary one fails.
- Router
- A network device that forwards data packets between networks based on IP addresses.
- Wide Area Network
WAN
- A network that spans a large geographic area, connecting multiple local area networks.
- Redundant Network Path
- An alternate physical or logical route between network sites that maintains connectivity if the primary link or router fails.
Topics
Networking
Network Redundancy
Failover
High Availability
Enterprise Networking
Routing
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