Network High Avaiablity and Retundancy Implimentation

High availability (HA) is an approach to implementing a variety of interrelated features as tools to ensure business resilience and maintain end-to-end availability for services, users, devices, and applications. High availability should be incorporated at many layers. With a sound design, network stability is easy to achieve, troubleshooting is easier, and human error is reduced Hierarchical network design based on both the EttF logical architecture and the enterprise campus core-distribution-access model Network and component redundancy that includes both redundant network systems, links, and systems with redundant components Foundation services that apply the network software features to maintain network availability when links, components, or other failures occur There are different types of HA topologies such as active-passive, active-active, and N+12. Active-passive topology involves a primary server that handles all requests and a secondary server that remains idle until the primary server fails. Active-active topology involves multiple servers that handle requests simultaneously. N+1 topology involves having one extra server available in case of failure.

When implementing high availability and redundancy in a network, it is important to consider factors such as network size, traffic patterns, security requirements, and budget1. It is also important to follow best practices for high availability configuration and management to ensure optimal performance and security.