Handles synchronization logic of NLSR LSDB updates » History » Version 3
A K M Mahmudul Hoque, 04/20/2014 10:15 PM
| 1 | 1 | A K M Mahmudul Hoque | Handles synchronization logic of NLSR LSDB updates |
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| 2 | ================================================== |
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| 4 | ### 1. Syncing LSDB |
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| 6 | - NLSR's Syncing Logic Handler (SLH) handles syncing logic of LSDB |
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| 7 | - SLH publishes updates on name \<router-prefix\> |
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| 8 | - SLH pushes sequence number to ChronoSync instead of letting ChronoSync generating it for NLSR |
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| 9 | 3 | A K M Mahmudul Hoque | - Sequence number is composed from the version number of Adjacency LSA, Prefix LSA and Hyperbolic LSA: 64 bit sequence number is composed as follows a. 40-59th bit represents Name LSA sequence number b. 20-39th bit represents Hyperbolic LSA sequence number c. 0-19th bit represent Adjacency LSA sequence number and 60-64th bit is unused at this moment. As ChronoSync needs strictly increasing sequence number, composing of sequence number follows that. |
| 10 | - When SLH receives updates notification it decomposes the sequence number and retrieves version for LSAs. Decomposing is sequence number is done to get the LSA Sequence/Version number from ChronoSync sequence number. |
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| 11 | 1 | A K M Mahmudul Hoque | - Checks LSAs version with LSDB |
| 12 | - If SLH finds newer version of LSAs, it communicates with InterestManager to send interest for LSAs |
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| 14 | - SLH also stores this sequence number in local store and retrieve the last sequence number used when boot up |
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| 17 | ### 2. Syncing Certificates |
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| 18 | 2 | A K M Mahmudul Hoque | - SLH publishes updates on name \<certificate-name\> |
| 19 | 1 | A K M Mahmudul Hoque | - Sequence number is pushed from SLH |
| 20 | - Upon updates notification reception, checks with certificate store |
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| 21 | - If newer version of certificate found, communicates with InterestManager to send interest |
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| 23 | - Stores Certificate sequences like LSDB sequences and retrieves when boot up |