Internet Engineering Task Force (IETF) S. Loreto Request for Comments: 6202 Ericsson Category: Informational P. Saint-Andre ISSN: 2070-1721 Cisco S. Salsano University of Rome "Tor Vergata" G. Wilkins Webtide April 2011 Known Issues and Best Practices for the Use of Long Polling and Streaming in Bidirectional HTTP Abstract On today's Internet, the Hypertext Transfer Protocol (HTTP) is often used (