HP-UX IPQoS A.01.00 Release Notes

HP-UX IPQoS A.01.00
What’s In this Version
Chapter4
What’s In this Version
HP-UX IPQoS A.01.00 is the first release of this product.
Benefits of HP-UX IPQoS
HP-UX IPQoS provides users an important traffic engineering technique to help address
many issues in the traffic management area. It enables HP-UX hosts to act as
DiffServ-compliant nodes. The DiffServ model allows for IP Quality of Service (IPQoS)
distinctions to be applied to various groupings of network traffic. IPQoS provides controls that
enable you to give defined traffic classes differentiated service.
HP-UX IPQoS helps address several problems including the following:
• Managing the explosive growth of network traffic over the last several years, in large
part, due to the explosive increases in Internet usage.
• Meeting the ever-increasing need for guaranteed communication as traditional uses of the
network now compete with mission critical applications.
• Improving upon the “best effort” service IP networks provide by default to all traffic types.
Just keeping the network up and running is insufficient, because some traffic requires
higher performance.
• Offering a cost-effective alternative to overprovisioning, which expands and upgrades
infrastructure equipment capacity to try to keep ahead of peak usage, rather than
strategically addressing typical usage. The capital investments needed to keep congestion
and queueing delays within reasonable limits during peak times are much higher than
those needed to keep up with average use.
HP-UX IPQoS helps the network support business objectives, while simultaneously helping to
minimize the cost of managing network resources. It helps keep network costs down by using
bandwidth more efficiently and by eliminating the need for overprovisioning as a result of
expanding the usefulness of the existing infrastructure.
HP-UX IPQoS features can help Internet Service Providers (ISPs) and Application Service
Providers (ASPs) offer differentiated levels of network service to customers. Individual
organizations can use HP-UX IPQoS features to prioritize internal traffic.
Features of HP-UX IPQoS
HP-UX IPQoS A.01.00 includes the following features:
• Conforms to the IETF DiffServ model