Methods for reducing packet loss during slow start stage of a session

A network device, comprising:

• a processing unit;
• at least one storage unit;
• more than one network interface;
• at least one non-transitory computer readable storage medium;
• wherein the at least one non-transitory computer readable storage medium for storing program instructions executable by the at least one processing unit for:
• a. determining if a data packet belonging to a new session is received;
• b. selecting a first connection according to a first selection policy;
• c. selecting at least one second connection according to a second selection policy;
• d. transmitting each of original encapsulating packets (OEPs) through the first connection;
• e. transmitting each of at least one duplicate encapsulating packets (DEPs) through the at least one second connection within a specific period of time;
• and
• f. transmitting each of OEPs through a third connection, and no longer transmit the at least one DEPs;
• wherein the data packet is one of the data packets received from a host;
• and
• wherein the specific period of time is a period of time within the slow start stage.