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Guarantee of Service (GoS)  

The demands placed on IP networks continues to increase dramatically.  Service providers are scrambling to deliver fatter pipes to more locations at an ever increasing rate.  Simply throwing bandwidth around will not solve all the critical challenges faced by network operators.  End-users, businesses and consumers alike, not only require more bandwidth but also smarter bandwidth. 

Fatter pipes will help mask the problem but eventually consumption will saturate even the fattest pipes and quality again will suffer.  

The challenge is that today end-users leverage multiple real-time applications simultaneously and their expectation is to do so without jittery voice, slideshow style video, out of sync collaboration sessions.  

What's required is a higher level of intelligence.  A way for networks to understand which applications are the most sensitive to delay and loss and prioritize accordingly. 

Countless IP telephony providers experience churn, dissatisfied customers, and countless support calls due to jittery voice.  GoS solves these challenges.

GoS Networks' Guarantee of Service (GoS) provides this required intelligence and does so in an efficient and granular fashion.  

What is Guarantee of Service?

Guarantee of Service (GoS) is a technology to manage network congestion - the principle cause of loss and delay in IP and other packet networks - in a controlled and predictable way.

GoS incorporates novel queuing, rate-limiting and traffic-shaping mechanisms, more sophisticated than any other network scheduling method. GoS technology:

• Is stable and predictable: it can deliver the configured set of QoS parameters at all network loadings.
• Automatically detects and correctly prioritizes VoIP and Video traffic
• Delivers an advanced packet scheduling mechanism designed for convergence
• Provides true Quality of Service for multi-media applications
• Delivers efficient utilization of bandwidth (unlike other approaches, GoS fills 100% of the link while enforcing QoS)
• Ensures real-time traffic without requiring over-provisioning
• Guarantees application performance, even under network saturation
• Provides easy configuration (no complicated guesswork to find the right configuration)

What are the advantages of GoS? 

By policing and shaping different streams and the aggregate traffic flow, GoS technology offers these advantages:

• It manages contention for network resources in a controlled and predictable way. Contention between and within streams is managed within the GoS enabled device, rather than happening in an uncontrolled manner further along the network path.
• It allows loss and delay to be managed simultaneously and independently.
• It allows statistical predictions of loss and delay performance to network traffic types, which remain true irrespective of network load and the demands of other network users.
• It polices all traffic streams fairly; that is, no one stream is allowed to use excessive network resources. This feature has the added benefit of giving some protection against 'denial of service' attacks and similar packet floods.

Unlike conventional IP bandwidth-management technologies, GoS is composable: that is, GoS instances can be cascaded to provide a general, network-wide solution to QoS problems. By deploying GoS technology at the major contention points, it will become possible to provide a guaranteed level of service across an arbitrary number of network hops. Thus, GoS has the potential to offer guaranteed QoS, per stream, from end to end of a standard IP network. It overcomes the quality limitations of IP, while retaining the simplicity and flexibility that has made the Internet the platform of choice for delivering every kind of new service.

How can GoS be leveraged?

GoS Networks makes GoS available in several different ways:

• GoS is built into the Horizon software platform and the Horizon 2000 product design
• GoS can be licensed and embedded into existing CPE to provide a superior level of QoS