Network services can be classified as public services or private services. Public services are offered to the anonymous public in the public part of the Internet, whereas private services are provided exclusively to selected user groups. Offering private services outside a secure intranet environment may constitute a security risk to the service provider. In this paper, we propose to increase s...

Quality of Service delivered to Grids by packet-switched networks, is one of the most important factors affecting performance and efficiency of both Grid applications and middleware. The use Virtual Private Network services can improve the overall performance of Grids in many respects. In this paper, we show how the security, privacy and Quality of Service offered by scalable on-demand VPN serv...

This work is resulted from the effort on incorporating IP VPN services into a 10G Ethernet product for an industry vendor.

Packet classification is the problem of identifying which one of a set of rules maintained in a database is best matched by an incoming packet at a router and taking the action specified by the rule. This is a uniform enabler for many new network services like firewalls, quality of service and virtual private networks. These services require dynamic management of rules. While many algorithms re...

Location-to-Service Translation (LoST) maps service identifiers and location information to service contact URIs. If a LoST client wants to discover available services for a particular location, it will perform a query to the LoST server. However, the LoST server, in its response, does not provide context information; that is, it does not provide any additional informat...

Some networks require communication between an interior and exterior portion of a Virtual Private Network (VPN) or through a concatenation of such networks resulting in a nested VPN, but have sensitivities about what information is communicated across the boundary, especially while providing quality of service to communications with different precedence. This note seeks to outline the issues an...

The third wave of IT outsourcing has reached small, medium-sized, but also large organisations, with a storm of interest via the Internet, in form of application service provision. Application service providers (ASPs) offer multiple users a subscription-based access model via the Internet or a virtual private network to centrally managed applications. The appeal of ASPs are the per-user-pricing...

: Aggregation of flows is a natural consequence of the transition of flows across multiple network domains. The quality of service that is provided to an aggregated flow is dependent on a sufficient set of individual flow characteristics correctly transformed in to the aggregated flow characteristics. VPN routers at the boundary of the private networks encrypt information within the data packet...

Service-Oriented Design has driven the development of telecommunication infrastructure and applications, in particular the so-called Intelligent Network (IN) Services, since the early 90s: IN services are customized telephone services, like e.g., Free-Phone, where the receiver of the call can be billed if some conditions are met, Virtual Private Network, enabling groups of customers to define t...