Presentation New Method to Increase Network QOS using OSPF's Link Weight

Nowadays, the internet is used various functions such as Radio, Television, and Telephone. For appropriate usage, we need network solutions that aim to provide end-users with Quality of Service (QoS) support. The networking research community proposed distinct QoS aware architectures and specific traffic control mechanisms that provide distinct service levels to networked applications(Wang,2001). Accordingly, Internet Service Providers (ISPs) must have Service Level Agreements (SLAs) (Liu et al, 2005) with their clients and with other ISPs. If neglected, must pay financial penalties. To achieve that, administrators must do some important configuration in their networks to assure that correct resource provisioning is achieved in the ISP domain. For example, these configurations may vary based on ISPs because The QoS solutions are different. Also it may includes distinct tasks such as, specifying the forwarding treatment given at each network nodes (e.g. the per-hop-behaviors(Davie et al, 2002)( Wroclawski et al,1999) of DiffServ (Blake,1998) ). defining traffic classification and packet marking rules at network edges, configuring admission control based mechanisms(Tsuchiya,2003), configuring routing algorithms(Slattery et al,2008) or finer-grain QoS solutions, enabling signaling protocols allow per flow resource reservation(Zhang et al,1997). In addition, there is more than one solution to achieve QoS aware network infrastructure. In general, any solutions require number of components working