Cisco Systems MeetingPlace Video Integration manual Variable Example

Chapter 4 Configuring and Managing Cisco MeetingPlace Video Integration

About Managing Video-Conferencing Resources

We recommend setting the number of video overbook ports to about 20% of the total number of video conferencing ports available. To make optimal use of video conferences and ports that are available on your system, determine the number of overbook ports according to the following formula:

Mod [(Total number of video ports available on the Cisco IPVC MCU - Total number of video floater ports + Number of video overbook ports) /Total number of video conferences available on the Cisco IPVC MCU]= 0

In other words, the total number of video ports available on the Cisco IPVC MCU, minus the total number of floater ports you have specified, plus the number of overbook ports you choose, altogether must be evenly divisible by the total number of conferences available on the Cisco IPVC MCU. If you perform this calculation and the result is not a whole number, increase or decrease the number of overbook ports until your result has no remainder.

For example, suppose your values are as indicated in Table 4-3:

Table 4-3 Example Overbook Port Calculation Values

Variable	Example 1	Example 2	Example 3
Total number of video ports available	24	24	24
Number of video floater ports (including	8	8	8
the required minimum number of video
floater ports plus optional additional
video floater ports)
Estimated number of video overbook	6	4	14
ports
Total number of video conferences	10	10	10
available
Calculation result is a whole number?	No	Yes	Yes
Is this an optimal number of video	No	Yes	Yes
overbook ports?

The result of your calculation using the values in Example 1 would be (24-8+6)/10, or 2.2, so 6 is not an optimal number of overbook ports. If you decrease the estimated number of overbook ports by 2, as in Example 2, your result is 2, a whole number. Therefore, one optimal number of overbook ports is 6-2, or 4. If you prefer more overbook ports, increase the estimated number of overbook ports by 8, as in Example 3, so that your optimal number of overbook ports is 6+8, or 14. You can also modify the number of floater ports, then try this calculation again.

If you change the number of floater ports, and you have set the number of overbook ports to maximize video-conferencing resources as described in this section, recalculate the optimal number of overbook ports.

If you specify more than zero video overbook ports, the system cannot guarantee that video ports will be available at the time of the meeting, even if the meeting was successfully scheduled. However, this situation is unlikely if you set the number of overbook ports using the formula in this section.

Administrator’s Guide for Cisco MeetingPlace Video Integration Release 5.3

OL-6280-01 4-9