CcndKnowledge » History » Version 1
Junxiao Shi, 01/18/2014 10:30 PM
| 1 | 1 | Junxiao Shi | # knowledge about ccnd |
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| 3 | ccnd is the original reference implementation of CCN/NDN architecture, and the only NDN forwarder that has been used with real applications. |
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| 5 | ## ccnd tables |
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| 7 | **FIB** is organized as a tree that is stored in a hashtable, and also contains runtime measurement information. |
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| 8 | **PIT** is stored in a hashtable, where each PIT entry is linked to a FIB entry. |
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| 9 | See [ccnd FIB and PIT data structure](https://www.dropbox.com/s/ms7hp1zgpfgvyru/ccnd-FIB-PIT_20140118.docx) for details. |
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| 11 | **ContentStore** is stored in a hashtable, and a skip list maintains a total order over all stored ContentObjects. |
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| 12 | See [ccnd ContentStore data structure](https://www.dropbox.com/s/0lw5pqno4wjesiv/ccnd-CS_20130703.docx) for details. |