Patent ID: 9253112
Filing Date: 2016-02-02
CPC Classification: H04J,H04L

Claim Text:
1. A network node for transferring a packet, comprising: a plurality of ports to input and output a packet to be transferred; a buffer memory to temporarily store the input packet; a search engine to determine one of the ports from which the input packet is output; and a timing adjusting unit to adjust a difference in a period of time needed from reception of a specific type of packet to transmission thereof, wherein the buffer memory includes at least one queue in which the input packet is stored temporarily, and wherein the timing adjusting unit is configured to: determine whether the input packet is the specific type of packet, and store the determined specific type of packet at a predetermined position in the at least one queue, the specific type of packet being stored at the predetermined position even when a free area in which a packet is not stored exists ahead of the predetermined position at which the specific type of packet is to be stored, and store a packet other than the specific type of packet in a top most free area in a case where the specific type of packet is at the end of the at least one queue and the free area exists in the at least one queue, wherein the buffer memory is configured to shift stored packets forward one by one at every period of time for processing one packet in a case where an area in which a packet is stored exists behind the free area.