A large portion of Internet
traffic is organized by Content Delivery Networks (CDNs). CDNs redirect to a
suitable server through domain name servers (DNS). At the same time, in future
networks, network routers are expected to be equipped with more processing and
storage power modules to provide the most efficient end-user services. From
this perspective, a service-oriented router (SoR) is introduced to accelerate
content-based services. This work presents a new method, DNS and SoR
Collaborative Redirection (DSCR), to speed up a redirection to the end-user.
DSCR uses SoRs to collect and store server and network status information by
placing SoRs at the edges of the ISP network. The DSCR then uses the
information gathered to accelerate DNS-based end-user redirects. We present the
design and implementation of the DSCR prototype and demonstrate how both SoR
and DNS can leverage existing Internet architecture to accelerate redirection
to the end-user. A detailed simulation was completed to evaluate our proposed
method using different strategies. The simulations clearly demonstrate the
effectiveness of the collaborative approach, which results in a 5-10% reduction
in end-user latency compared to DNS-based redirection.
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