ISP network design of non-authoritative caches

Robert E. Seastrom rs at
Sat Nov 17 14:59:40 UTC 2001

One of the reasons that centralized nameservers get used for big
dialup ISPs (such as Mindspring, Sean's earlier example) is that the
folks who provide outsourced dial ports often don't put a nameserver
in each POP, or are at least bad about giving their customers a map of
them so the RADIUS servers can do the right thing.  An unfortunate
side-effect of this practice is that it can pessimize Akamai service
(can't speak for DI and other CDNs).


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