TechNote (Archived)

Breeze connectivity troubleshooting

For the best experience, Breeze requires suitable connectivity from each user to the Breeze server. While Breeze can accommodate different bandwidth levels such as modem, DSL, and LAN, each type of connection requires a certain minimum for acceptable performance.

In addition to the plain throughput on any given type of connection, there are other factors such as firewalls and proxy servers that can affect the overall bandwidth of a connection to Breeze.

Breeze presentations are normally delivered as HTTP data on port 80, while Breeze Meeting audio and video streams are delivered as RTMP data on port 1935. When users are inside a corporate firewall that closes the optimal ports, Breeze uses fallback mechanisms to deliver RTMP data on ports 80 and 443, but this results in additional overhead that impacts overall throughput.

Additionally, it is common for many DSL connections to have better download bandwidth than upload bandwidth. This can affect Breeze Meeting recordings that incorporate screen sharing since there is greater bandwidth burden when uploading data to the Breeze server.

There are two principle diagnostic tests to help troubleshootconnectivity issues in Breeze.

Port Test: www.macromedia.com/go/16466

The Port Test shows connectivity from a client to Macromedia and reveals which ports are open or closed on the client side. At least one of these ports need to be open for any Breeze Meeting functionality, ideally port 80 and 1935 should be open. If not, contact your IT department to see if they can be opened (it may not be possible due to security issues).

Breeze connectivity:http://admin.breezecentral.com/common/help/en/support/meeting_test.htm

This will test overall connectivity and will show upstream and downstream bandwidth (note this may vary due to internet traffic) and should reveal whether or not you have sufficient bandwidth (> 350K bps) to achieve acceptable results when recording a Breeze Meeting while screen sharing.