Agilent Technologies is in the process of being split off from the rest of HP. Qosnetics' products will fit into Agilent's test and measurement offerings, which are used to develop computing equipment such as network devices.
Terms of the acquisition were not disclosed.
Qosnetics makes devices that test routers--the specialized computers that shuttle data across the Internet--as well as machines that test networks by stressing them heavily. For example, Qosnetics devices can generate large bursts of Web page requests or Internet traffic.
In a statement, Agilent chief executive Ned Barnholt cited the acquisition as evidence that Agilent is a nimble company. Analysts have said one of the reasons for spinning off Agilent is to give it more control over its future instead of living in the shadow of HP's main business in computers.