According to one embodiment, a method for performing reconciliation sync includes a first network device configured as an active inter-chassis redundancy (ICR) device in response to detecting a switchover request while performing a bulk sync transitioning to serving as the standby ICR device and performing a reconciliation sync while serving as the standby ICR device, the reconciliation sync comprises starting a transmission of session records that failed to be transmitted during the bulk sync to the second network device.According to one embodiment, a method for performing reconciliation sync includes a first network device configured as a standby ICR device receiving a plurality of session records from a second network device of the ICR system. The method further includes updating a global version number based on record version numbers of the received plurality of session records, and maintaining local session records based on the received plurality of session records.