High bandwidth Internet connections and applications demands are
growing so rapidly because of the Internet arising usages either on
business or entertainment. Adding new links to cover the extra
demand is the simplest solution but it always comes with financial
issues due to the extra cost it adds. That's why researchers and
leading companies should search for smarter alternatives. Internet
Service Providers (ISPs) should improve their networks in
perspective of the utilization of the bandwidth and the management
of their resources. Two techniques have been introduced separately
to support in addressing the bandwidth utilization problems in the
ISPs networks, the Multi-Protocol Label Switching – Traffic
Engineering (MPLS-TE) and the DiffServ Quality of Service (QoS).In
this paper, the two techniques are used together to get the highest
performance, the best resources management and an efficient
bandwidth utilization. Multiple experiments have been held in
different variations using one or more of the Diffserv-aware MPLS
TE, Low Latency Queuing (LLQ), Russian Dolls Model (RDM) and
Maximum Allocation Model (MAM) model. The best results for both
IPv4 and IPv6 were obtained using Diffserv-aware TE in RDM model
in conjunction with LLQ.