Handles synchronization logic of NLSR LSDB updates¶

1. Syncing LSDB¶

• NLSR's Syncing Logic Handler (SLH) handles syncing logic of LSDB
• SLH publishes updates on name /<router-prefix>/<LSA-TYPE>
• SLH pushes sequence number to ChronoSync instead of letting ChronoSync generate it for NLSR (New methods have been added to ChronoSync API to enable this)
• Each LSA type uses a separate sequence number
• Checks LSAs version with LSDB

• If SLH finds newer version of LSAs, it communicates with InterestManager to send interest for LSAs

• Sequencing Manager stores these sequence numbers in a file and retrieves the last sequence numbers upon start

2. Syncing Certificates¶

• SLH publishes updates on name <certificate-name>
• Sequence number is pushed from SLH
• Upon updates notification reception, checks with certificate store

• If newer version of certificate found, communicates with InterestManager to send interest

• Stores Certificate sequences like LSDB sequences and retrieves when boot up