No doubt, your WAN (or internet) access availability and bandwidth consumption are crucial for your activities. If you don’t want to waste bandwidth at the expense of your critical applications, you should properly manage its usage. To achieve internet access high availability, you may also need multiple internet connections provided by distinct ISPs. CacheGuard not only helps you save WAN bandwidth but also reserves bandwidth for your critical uses. Additionally, CacheGuard can distribute internet traffic across multiple WAN connections, detect the unavailability of a WAN connection, and automatically route all network traffic through available WAN links.
With CacheGuard, you can cache web content to save WAN bandwidth. Caching allows you to download content once and deliver it multiple times, significantly saving your precious WAN bandwidth. Since the majority of bandwidth consumers on the internet use HTTPS (such as YouTube and Facebook), CacheGuard includes a module called SSL mediation that enables you to cache web content even in encrypted traffic (HTTPS). CacheGuard also allows you to selectively cache HTTPS websites while avoiding caching content considered confidential within your organization.
HTTP Compression
HTTP compression allows you to deliver all textual content (HTML pages, JavaScript code, CSS, etc.) in a compressed format. It helps save WAN bandwidth when CacheGuard is implemented on a remote site (and possibly chained with another CacheGuard at your local site). Additionally, HTTP compression also saves Wi-Fi bandwidth.
Traffic Shaping
Traffic shaping allows you to reserve the appropriate bandwidth for users and servers based on their IP addresses, ports, and the protocols they use. With CacheGuard, you can reserve fixed bandwidth for a network or opt for a flexible configuration in which unused, reserved bandwidth for one network can be borrowed by other networks that need it at a given time.
Multi WAN
CacheGuard can be connected to multiple WANs (multiple ISP routers) and distribute the overall traffic between them. In the event of a WAN access failure, CacheGuard automatically routes all traffic through the accessible WAN. If a faulty WAN becomes available again, it is automatically detected by CacheGuard, and traffic can be routed through that WAN. CacheGuard’s multi-WAN feature ensures that both users and servers remain continuously connected to the internet.
CacheGuard WAN Optimization is integrated into our core product, CacheGuard-OS. CacheGuard-OS is an appliance-oriented operating system that transforms a virtual or bare-metal machine into a network appliance.
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