Cisco Unified MeetingPlace, Release 7.0 -- How to Calculate Meeting Configuration Values

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Main page: Cisco Unified MeetingPlace, Release 7.0

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The Meeting Configuration Page

You can set values for the meetings held on your system in the Administration Center by going to the Meeting Configuration page. For descriptions of the fields on that page, see Meeting Configuration Page.

For guidelines on settings values for some of those fields, see Table: Setting Meeting Configuration Values. Not all fields are listed in this table.


Note: These guidelines are good defaults for a new system. If your system is already configured with settings that work well for your user base, then keep the existing settings.


Table: Setting Meeting Configuration Values
Field How to Determine the Value
Audio Settings

Audio licensed ports

Based on the number of ports for which you have licenses. There are two licenses: voiceconf and maxvoice. The number of audio licensed ports is the lesser of these values.


You cannot change this value on the Meeting Configuration page. To change this value, purchase and install additional licenses.

Audio available ports

The value of the Audio licensed ports field modified by the value of the Global audio mode:


To change this value, change the value of the Global audio mode field.

Audio floater ports

See the Recommendations for Determining the Number of Floater Ports.

Audio overbook ports

See the Recommendations for Determining the Number of Overbook Ports.

Video Settings

Video licensed ports

Based on the number of ports for which you have licenses. There are two licenses: videoconf and maxvideo. The number of video licensed ports is the lesser of these values.


You cannot change this value on the Meeting Configuration page. To change this value, purchase and install additional licenses.

Video available ports

The value of the Video licensed ports field modified by the value of the Global video mode:


To change this value, change the value of the Global video mode field.

Video floater ports

See the Recommendations for Determining the Number of Floater Ports.

Video overbook ports

See the Recommendations for Determining the Number of Overbook Ports.

Web Settings

Web licensed ports

Based on the number of ports for which you have licenses. There are two licenses: videoconf and maxvideo. The number of web licensed ports is the lesser of these values.


You cannot change this value on the Meeting Configuration page. To change this value, purchase and install additional licenses.


You cannot schedule web ports in Cisco Unified MeetingPlace.

Override System Capacity

Use licensed audio capacity

See the Limitations for Cisco Unified MeetingPlace Licenses.

Audio capacity override (ports)

See the Limitations for Cisco Unified MeetingPlace Licenses.

Use licensed video capacity

See the Limitations for Cisco Unified MeetingPlace Licenses.

Video capacity override (ports)

See the Limitations for Cisco Unified MeetingPlace Licenses.

Global Settings

Global video mode

See the Recommendations for Determining the Global Video Mode.

Global audio mode

See the Recommendations for Determining the Global Audio Mode.

Meeting Settings

Maximum ports per reservationless meeting

Limits the total number of all port types that can be used for each reservationless meeting. Ensures that resources are shared adequately among users.

Maximum ports per scheduled meetings

Limits the total number of all port types that can be used for each scheduled meeting. Ensures that resources are shared adequately among users.



Recommendations for Determining the Number of Floater Ports

Floater ports are used when the actual number of participants for a meeting exceeds the number of ports that were reserved for that meeting. If the meeting runs out of reserved ports, the system uses floater ports for additional participants who join the meeting.


The information in Table: Recommended Percentages for Overbooking and Floater Ports maximizes the port utilization and capacity of the system, depending on how much traffic is used for reservationless meetings. It contains suggested starting values for overbooking and floater ports. These are expressed as a percentage of the number of ports.

Note that the "% reserved" refers to port usage rather than the number of meetings. Because reserved (or scheduled) meetings tend to be larger than reservationless, their effect is greater.


Table: Recommended Percentages for Overbooking and Floater Ports
Usage Default meeting size Overbooking % Floater Port %

All reserved

5-6

33%

30%

R% reserved

3-4

R / 3

50% - (R / 5)

All reservationless

2-3

0

50%



Tips
  • Use the same recommendations for voice, web, and video.
  • Increase the number of floater ports if users complain that their meetings are being forced to terminate at the scheduled end time.
  • Decrease the number of floater ports to allow more meetings to be scheduled.
  • Reservationless meetings are best served by a small starting meeting size and a larger floater pool, with little or no overbooking.
  • Increase the number of audio and video floater ports if your system has frequent meeting recordings.




Recommendations for Determining the Number of Overbook Ports

Overbook ports provide some leeway in port allocations, based on the assumption that not all reserved licensed ports will be used. When a user schedules a meeting, the system reserves ports based on the specified number of meeting participants. The system uses overbook ports to allow users to schedule more meetings, with more participants, than the system actually has licenses for.


For recommendations, see Table: Recommended Percentages for Overbooking and Floater Ports.


Tips
  • Use the same recommendations for voice, web, and video.
  • Increase the overbooking percentage if you find that port utilization is low at times when scheduling failures are high.
  • Decrease the overbooking percentage if you have evidence that callers are unable to get into their meetings even though adequate ports were reserved.
  • Reservationless meetings are best served by a small starting meeting size and a larger floater pool, with little or no overbooking.
  • With scheduled meetings it is best to set the default meeting size to the average (which is typically about 5), and use overbooking to compensate for no-shows and cases where reservations are higher than actual usage.




Recommendations for Determining the Global Audio Mode

The following applies to the Cisco Unified MeetingPlace 3515 Media Server and Cisco Unified MeetingPlace 3545 Media Server Audio Blades when used alone or in multiple blade situations:

  • For G.711 and G.729, the Audio Blades have a maximum audio port capacity of 250.
  • For G.711, G.722, G.729, and iLBC, the Audio Blades have a maximum audio port capacity of 166; however, you need 1.5 licenses for every audio port. Therefore, the audio count is 166 but you need 250 licenses to get those 166 audio ports.
  • If you use Line Echo Cancellation (LEC) with G.729, you must select the lower capacity audio mode.


Audio Mode Maximum Audio Port Capacity

G.711, G.729 (default)

Licensed value: 250 ports/blade

G.711, G.722, G.729, iLBC

2/3 of licensed value: 166 ports/blade



Recommendations for Determining the Global Video Mode

The following applies to the Cisco Unified MeetingPlace 3515 Media Server and Cisco Unified MeetingPlace 3545 Media Server Video Blades:

  • When used alone in "Standard Rate" mode, the Video Blades have a maximum video port capacity of 24 (for the Cisco Unified MeetingPlace 3515 Media Server) or 48 (for the Cisco Unified MeetingPlace 3545 Media Server).
  • When used in multiple blade situations (also known as cascading), in "Standard Rate" mode, the Video Blades have an effective capacity of 20 (for the Cisco Unified MeetingPlace 3515 Media Server) and 40 (for the Cisco Unified MeetingPlace 3545 Media Server).
  • You need one videoconf license for every video port that you use. However, if you use your Video Blades in "Standard Rate" mode, the number of video ports available is less than when you use your Video Blades in "High Rate" mode. To get more video ports, you need to buy additional Video Blades or use "Standard Rate" mode.


Video Mode Maximum Video Port Capacity (Non-cascading) Maximum Video Port Capacity (Cascading)

"Standard Rate"

Licensed value:

  • 24 (for the Cisco Unified MeetingPlace 3515 Media Server
  • 48 (for the Cisco Unified MeetingPlace 3545 Media Server)

Licensed value:

  • 20 (for the Cisco Unified MeetingPlace 3515 Media Server)
  • 40 (for the Cisco Unified MeetingPlace 3545 Media Server)

"High Rate"


(default)

1/2 of licensed value:

  • 12 (for the Cisco Unified MeetingPlace 3515 Media Server)
  • 24 (for the Cisco Unified MeetingPlace 3545 Media Server)

1/2 of licensed value:

  • 10 (for the Cisco Unified MeetingPlace 3515 Media Server)
  • 20 (for the Cisco Unified MeetingPlace 3545 Media Server)



Continuous Meetings

A continuous meeting is a type of scheduled, recurring meeting that reserves the meeting ID and ports indefinitely, so that participants may join the meeting at any time on any day.


These special characteristics apply to continuous meetings:

  • A continuous meeting is in session only when at least one participant is in the meeting.
  • A maximum of 1000 continuous meetings can be scheduled on the system.
  • Continuous meetings cannot expand port reservations as users join. If all the reserved ports for a continuous meeting are in use, then additional users may join the meeting only if floater ports are available. This restriction applies to audio and video ports. It is common, however, to schedule continuous meetings with zero ports so that no resources are held when the meeting is not in session.
  • If a continuous meeting is not scheduled with reserved video resources, then video may be used only if the following statements are true:
    • Video floater ports are configured and are available at that time.
    • The Does each audio blade have a video blade field is set to Yes, and the Media Server is set up accordingly.

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