The eecient utilization and management of bandwidth in broadband networks is of paramount importance since bandwidth costs are likely to dominate network operational costs, especially in the wide area scenario. However, relatively little attention has been given to this issue in developing the current schemes for the transport of Internet data traac over ATM. In this paper we describe a bandwid...

The eecient utilization and management of bandwidth in broadband networks is of paramount importance since bandwidth costs are likely to dominate network operational costs, especially in the wide area scenario. However, relatively little attention has been given to this issue in developing the current schemes for the transport of Internet data traac over ATM. In this paper we describe a bandwid...

This is an Internet era. Most of the organizations try to establish their development centers and branch offices across the World. Employees working from their homes are also becoming very popular and organizations benefit financially by utilizing less office space, and reducing total expenses incurred by having office workers on site. To meet such requirements organizations develop a need to c...

In order to be competitive enterprises continuously implement ICT strategies & architectures to improve manufacture, research, products quality, sales, services and costs control. All large enterprises have a local area network, a virtual private network, an Intranet and Internet, servers and workstations for operations, administration and management working together for the same objective: pro...

To provide Multicast VPN (MVPN) service, Provider Edge routers originate BGP Update messages that carry Multicast-VPN ("MCAST-VPN") BGP routes; they also originate unicast VPN routes that carry MVPNspecific attributes. These routes encode addresses from the customer’s address space, as well as addresses from the provider’s address space. These two address spaces are independent, and the address...

The amount of home networks, as well as the number of services and hosts in them, is increasing. Often the home users cannot get public IPv4 network allocations from service providers and are forced to use Network Address Translation (NAT) and port forwarding to solve connectivity issues to the different home services. This paper introduces a secure connectivity solution utilising both IPv6 and...

This document provides framework and requirements for Layer 2 Virtual Private Network (L2VPN) Operations, Administration, and Maintenance (OAM). The OAM framework is intended to provide OAM layering across L2VPN services, pseudowires (PWs), and Packet Switched Network (PSN) tunnels. This document is intended to identify OAM requirements for L2VPN services, i.e., Virtual Private LAN Service (VPL...

An ATM virtual private network (AVPN) offers to a multisite customer an ATM transport service based on a ‘virtual’ topology of dedicated VPs embedded in a larger ATM backbone. The goal of AVPN is to allow the efficient and flexible use of the resources by giving to the customer considerable autonomy in managing such resources. In this paper, we show how this goal can be achieved by exploiting s...

IP based Virtual Private Networks (VPNs) are being deployed as the solution of choice for site-to-site communication for a large number of enterprises. The provider networks that support these services are faced with unique challenges in terms of network planning. There is a lot of value in understanding the characteristics of VPNs from the perspective of planning, provisioning and maintenance ...

A Virtual Private Network is a logical network established on top of a public packet switched network. To guarantee that quality of service requirements, specified by customers, can be met, the network service provider needs to reserve enough resources on the network and allocate/manage them in an optimal way. Traffic engineering algorithms can be used by the Network Service Provider to establi...