That still doesn't define a requirement for >1gb/s in a single flow. A flow is a single connection, such as downloading a file from a single IP address. When

That still doesn't define a requirement for >1gb/s in a single flow. A flow is a single connection, such as downloading a file from a single IP address. When you download a single file from multiple sources (such as with Bittorrent), each connection to each source is a flow.