1. A method comprising: halting processing of data packets arriving on an established network connection until the connection is migrated to a new network context that queues connections processed by a network thread without putting the connection in an inconsistent state; migrating the connection to the new network thread; removing a link to a portable control block (PCB) storing information about the connection in migration from a first data structure corresponding to the network thread from which the connection will be migrated to a temporary queue; and placing the PCB to a new data structure corresponding to a new network thread to which the connection is migrated.