| 摘要 |
A packet transfer apparatus includes an MSS option rewrite unit and packet fragmentation unit. The MSS option rewrite unit determines a first maximum segment size used in a transport layer between a transmitting hosts and the packet transfer apparatus on the basis of path information between the transmitting hosts and the packet transfer apparatus, and notifies the transmitting hosts of the first maximum segment size. The MSS option rewrite unit determines a second maximum segment size used in a transport layer between a receiving hosts and the packet transfer apparatus on the basis of path information between the receiving hosts and the packet transfer apparatus, and notifies the receiving hosts of the second maximum segment size. When the first maximum segment size of a connection corresponding to a transfer packet is larger than the second maximum segment size, the packet fragmentation unit fragments a data part subsequent to the header of the transport layer of a packet received from the transmitting hosts into a plurality of segments in accordance with the second maximum segment size, and transfers to the receiving hosts a fragmented packet assembled by adding a header copied from header information of the received packet to each fragmented segment. A packet transfer method is also disclosed.
|
