A virtualization switch and storage system

摘要

A virtualization switch (100) virtualizes a data storage area provided by a server device (105) and provides it to a server device (105). This virtualization switch processes a priority control and a bandwidth control also on the output side to packets which make an access to a virtual volume and which have different demands for a QoS but identical IP headers according to a discrimination result of a TCP connection. Here, the TCP connection is discriminated by managing a TCP source port on the side of the virtualization switch.