The world is rapidly changing communications based on mobile applications. With the rise of high-speed 4G networks, access and amazing flexibility 'genius' phones and tablets it makes sense. Although Facebook has overcome the challenge of monetization of mobile advertising. However, be prepared for a deluge of mobile devices to access your public facing websites you need to be ready for the perils of mobile connectivity.
Since the dawn of the Internet, session interruptions were greatly amplified for wireless users. Packets dropped just walking around or sharing a congested access point. Customers experience packet loss when switching between towers and oversubscribed networks. Unfortunately current protocol standards assume packet loss is always due to bottlenecks and although valid for users connected to broadband networks (eg, DSL) which is problematic for mobile users; packet loss is due to more congestion.
The current implementation of TCP standard is based on packet loss as a network congestion indicator. The problem is that TCP does not have the ability to distinguish the loss of the congestion that relied on by noisy links. In wireless connections overlapping radio channels, signal attenuation, and other noise sources result in severe disruptions. Accordingly, the standard TCP reacts by mistake with a drastic reduction in the transmission window size. When TCP sessions lose a packet, it stops, and slowly ramps again with a lower rate over time until packet loss occurs more.
The solution to this conundrum is to use delivery NetScaler Application Controllers (ADC) with support for TCP Westwood (TCPW). This extension of the standard TCP fully deployed and works by finding the ideal performance in a mobile network and is designed to handle mobile noisy links. TCPW can tell when packet loss is due to mobility or congestion. Mobile users now get the overall throughput than a significant improvement in performance over long distances, high bandwidth links. TCPW on NetScaler is disabled by default, but can be configured in minutes.
TCP Westwood is a small change in the algorithm of standard TCP congestion and control. When the sender receives the congestion occurred, the sender uses the estimated available bandwidth to adjust the congestion window and slow start threshold sizes. TCPW avoids huge discounts on these values and provides both a faster and effective avoidance of congestion recovery. It does not require OSI layer support lower or higher, and does not need to return an explicit network congestion. TCPW ensures faster recovery and avoidance of congestion effective to provide a better experience for the end user. Just in time to easily see ads more mobile clients!
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