IEEE MEDIA INDEPENDENT HANDOVER Title: An existing use of DNS Date Submitted: Authors or Sources: H Anthony Chan Abstract: Current use of DNS to redirect to a local server is shown. It is open to discussion of whether DNS can be used to resolve the local SFF
DNS “ Black Magic ” Web Client Akamai High-Level DNS Server Akamai Low-Level DNS Server Local DNS Server PCWorld Authoritative DNS Server PCWorld Web Server Akamai Edge Server Root DNS Server Top-Level Domain DNS Server http request/response images.pcworld.com CNAME: a1694.g.akamai.net images.pcworld.com a1694.g.akmai.net 2 ip addresses of Akamai Edge Servers 2 ip addresses of Akamai Edge Servers fetch image files Source:
Local name server Root server 21.org? org name server xx.21.org low.high.xxx.net xxx.net? high.xxx.net? High level DNS server Low level DNS server low.high.xxx.net? Select cluster Select servers within cluster
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