To communicate among various servers, eDirectory uses Netware Core Protocol (NCP) as the communication protocol. In previous releases, the maximum packet size that NCP allowed was 64 KB, which limited the maximum throughput when data was transferred over NCP. This release improves the ability of NCP to handle packet size up to 1 MB, which enables eDirectory to synchronize up to 1 MB data in a single packet. eDirectory starts synchronizing with 64 KB packet size and increases the packet size based on the remaining data to be synchronized. This significantly improves the replication performance. If your both servers are 9.1, you do not need to perform any additional configuration to leverage this enhancement.