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NCACHENegative Caching
References in periodicals archive ?
The negative caching retains the negative response for the queried name according to the minimum TTL set by the SOA record, thus all negative caching for one zone's data uses the same TTL.
So we adopt the approach of negative caching processing for the sake of computational efficiency.
Here an appropriate value of T that we recommend may be the TTL of negative caching. This is a tradeoff between the processing complexity and the detection granularity.