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When building a strong WAN technology strategy, organizations need to evaluate their requirements based on their assets and business needs so they can optimize their efforts and return on investment. Proactive link management is an essential part of this type of project and complements other technologies commonly used in the enterprise.
Link balancers: These units are key to maintaining connectivity and ensuring that traffic flow is optimized by enabling the use of multiple concurrent Internet service providers (ISPs) and/or private WAN links. Should a link be unavailable or become saturated, other links will maintain connectivity seamlessly and transparently.
Elfiq’s approach enhances performance beyond balancing traffic on multiple links by implementing traffic segmentation, enforcing traffic types on certain links based on corporate priorities. Quality of service is a key component in improving performance by ensuring bandwidth availability for key applications on a per-link basis.
Elfiq also enables point-to-point application resilience for services such as VPN and VoIP, along with multisite geographic balancing, providing a key complement to other WAN products and technologies.
Traffic shapers and WAN accelerators: These products are dedicated to prioritizing, shaping, compressing, accelerating, limiting or blocking all Internet and WAN traffic for network efficiency. Units of this kind can reserve some bandwidth for specific applications and rate limit sessions to prevent link saturation and keep core applications responsive. They perform their tasks with intensive deep packet inspection and are usually very resource-intensive for this reason. Traffic shapers are not able to manage multiple ISP links.
Local/Server balancers: These units handle server-based balancing by proactively monitoring server resources (health, session, CPU usage, network load, etc.) and ensuring that users access the desired applications and resources. Local balancers also perform SSL acceleration, Web application security, Web server caching and compression. These devices create the relationship of one IP address for all servers for their users.
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