“Convergence” is a buzzword seen in the IT press constantly these days. All convergence means is placing communications that used to ride on its own network onto one unified network; Ethernet’s cheapness, ubiquity, and ever-growing link speeds makes it the network everything is moving towards. The first big convergence move was to combine voice networks with data networks, using IP telephony. The challenges of a converged voice/data network include prioritizing voice traffic over pretty much anything else during times of link congestion, and keeping call quality high by delivering datagrams in a predictable time with a predictable gap in between those datagrams.