LSA syncing and packing

When the LSA processing is completed on the active management module and the decision is made to install the LSA in its link state database (LSDB), OSPF synchronizes that LSA to the standby module. OSPF checks the current state of the database entry, whether or not it is marked for deletion. After checking the database state, OSPF packs the LSA status and other necessary information needed for direct installation in the standby OSPF LSDB, along with the LSA portion. When the LSA reaches the standby module, OSPF checks the database entry state in the buffer and takes appropriate action, such as adding, overwriting, updating, or deleting the LSA from the LSDB.