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Bug #3885

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processSyncInterest: Interest for new data getting satisfied by cached old data

Added by Sonu Mishra over 7 years ago.

Status:
New
Priority:
Normal
Assignee:
Start date:
12/11/2016
Due date:
% Done:

0%

Estimated time:

Description

Suppose a node x sends an interest with a digest that another node y does not recognize. When node y receives this interest, it sends its full old data as a reply. When node x receives this old data, it discards it -- as it finds nothing new in the data -- and resends the interest. The problem is that the old data gets cached and it keeps satisfying the interest. The interest does not travel to another node z that has the relevant new data, causing unnecessary delays.

Therefore, sending of old data in reply to interest with unrecognized digest is a bug that needs to be fixed.

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