CDN leads the flow of traffic onto the edge of the backbone network to ease congestion. Current major carriers deploy CDN node in IDC room

but in the telecommunications carrier opinion

IDC to the end user but also across CMNet

the core network and transmission network. With the popularity of mobile phones

tablet and other wireless devices to the core network bandwidth is increasing pressure. The CDN lower edge node to the core network

the core network to alleviate the pressure on the network

reducing network latency has a huge role. In this paper

CDN edge node type and feasible solutions were analyzed sinking

and especially for the current study less CDN edge computing nodes were analyzed

because the cache system and CDN integration has become the trend

this article will node cache system regarded as the CDN edge node.