This article relates to the Cisco TelePresence MCU 4203, Cisco TelePresence MCU MSE 8420, Cisco TelePresence MCU 4505 and Cisco TelePresence MCU MSE 8510 products.
A. Each participant within a conference uses a port on the MCU. However, ports are also allocated to the content and streaming channels. A VNC connection also uses a port (whether it is currently providing content or not). The MCU 4500 Series, MCU 4203 and MSE 8510 Media2 blade have streaming and content ports available, meaning that if content is being sent to the conference, no video port is required. On the MSE 8420 Media blade and the MCU 4200 Series (with the exception of the 4203), there are no special streaming and content ports, therefore a video port is allocated instead.
Note: Each TANDBERG ConferenceMe participant uses one video port. A maximum of 12 ConferenceMe participants can be connected to the MCU at any time. To reduce the amount of ConferenceMe participants that can connect at a time, go to Settings > Streaming. For Maximum ConferenceMe connections, select the required number, from a minimum of 0, to a maximum of 12.
MCU 4200 Series (except 4203) & MSE 8420 Media blade
If you are running an MCU 4200 Series (except 4203) or MSE 8420 Media blade, in addition to video participants in a conference, you must also account for video ports being used for the content channel. To enable the content channel for all conferences on the MCU, go to Settings > Content. For Content status, select Enabled. If this is selected, you can still enable or disable the use of content on a per-conference basis. To enable the content channel for an individual conference, go to Conferences and click the name of your conference. Go to Configuration. For Content channel video select Enabled. If you do not want to allocate a port for the content channel, select Disabled.
When running an MCU 4200 Series (except 4203) or MSE 8420 Media blade, in addition to the content channel each conference that is performing unicast and/or multicast streaming requires a further additional video port. To enable unicast and/or multicast streaming for all conferences on the MCU, go to Settings > Streaming. For Streaming status, select Enabled. If this is selected, you can still enable or disable the use of unicast and/or multicast streaming on a per-conference basis. If you do not want to allocate a port for streaming, select disabled. To enable unicast and/or multicast streaming on a per-conference basis, go to Conferences and click the name of your conference. Go to Configuration. For Streaming select Unicast, Multicast or Unicast and multicast. If you don't want to allocate a port for streaming, select <none>. Note that unicast streaming is used only if it has been enabled for the conference and at least one conference participant has requested unicast streaming for the conference. When using multicast streaming a port is allocated as soon as it is enabled for the conference and the conference becomes active, even if there are no participants in the conference.
Note: If you have the Web conferencing feature you can enable either streaming or ConferenceMe. To do this, go to Settings > Streaming. To enable Streaming, in the Enable drop-down menu, select Streaming. To enable ConferenceMe, in the Enable drop-down menu, select ConferenceMe. If you do not want to allocate a port for streaming or ConferenceMe, select None.
MCU 4203 & MCU 4500 Series
The MCU 4500 Series, MCU 4203 and MSE 8510 Media2 blade have additional ports allocated specifically for streaming and content. This means that video ports will never be used for streaming or content; video ports will only be used for conference participants. For example, an MCU 4203 has six video ports and six streaming and content ports. If you have two conferences, each with three participants and one content source, all video ports and two streaming and content ports are allocated.