Day by day Internet communication and services are ecperiencecing an increase in variethy and quantity in their capacity and demand,Thus,making traffic management and quality of service approaches for optimization of the internet become a challenging are of research ; meanwhile flow control and congestion control will be considered as significant fundamentals for the traffic controls espexially on the high speed network (in the range of Gigabit Ethernet family).The existing IEEE802.3x standard which is applicable to all versions of full-duplex Ethernet uses PAUSE frames as MAC control frames to enable or disable frame transmission .As a result regulating data flow at the low level of OSI model assist in minimizing frame loss and praventing latency due to error recoverry at the higher layer protocols.However some problems encountered;for instance,it does not distinguish the well-behaved stations from misbehaved stations and it causes a head-of-line problem.Moreover,there is no priaority awarenes all traffic get equal punishment.The adding overhead and other problems associated with IEEE802.3x have made it become ineficient.Realizing the studies to overcome the problems become important has motivated us to propose a new format of PAUSE frame throught an intelligent swicht,which includes some new flexible programmable fields,suchs as predetermined pasuse-time for particullar traffics.So our proposed inteligent swiches with its new PAUSE frame are able to distiguish between different types of traffic and in turn,both new PAUSE frame and inteligent swicth together provide an efficient flow control approach for high speed networks.