RE: [RRG] Generic requirements on mapping mechanisms

["Tony Li" <tony.li@tony.li>]

|> In the case of the DNS, some of the cost of using short TTLs is 
|> supported by the owner of the domain names with a short TTL. The 
|> resolvers of nodes that resolve those domain names also suffer some 
|> cost, but the nodes that do not contact these domain names 
|do not suffer 
|>  the additional cost. In this case, there is some cost 
|(replying to more 
|> DNS requests) for the domain that chooses to use short 
|lifetime. This is 
|> not perfect since the resolvers that contact this domain 
|also support 
|> some cost.
|
|OK.  I thought perhaps you had a way of removing even that cost.


One way of shifting that cost further is for the advertising site to
proactively issue updates based on historical requests.

Tony


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