User's Manual

Managing video on your network
Administering Avaya Video Conferencing Solutions 6.1 25
DRAFT
See Setting up bandwidth pools on page 34 for setting up bandwidth pools using Network
Regions.
SIP-only endpoints
When the enterprise uses only SIP endpoints, bandwidth is divided up first by geographical
location and then by audio or video. There are slight differences between Release 6.0 and 6.1
on how bandwidth is partitioned. If on Release 6.0, the video and audio pools cannot share
bandwidth. Whatever bandwidth that’s assigned to those pools stays in those pools. If on
Release 6.1, the bandwidth within the audio and video pools are shared.
For Avaya Aura
®
, Release 6.0, locations do not share bandwidth, so Avaya offers the following
interim options:
● Conservative option (if audio is mission-critical):
- Assign enough bandwidth for maximum concurrent audio calls to video locations.
- Assign the remaining bandwidth to video.
● Aggressive option:
- Make the sum of the bandwidth assigned to audio and video locations equal the actual
available bandwidth. If a burst of audio and video calls occurs, however, users will see
degraded quality.
To determine how much bandwidth to allocate for each pool, you need to know the average
bandwidth per call within the enterprise. Use the following formula to calculate it:
Y = AC + BD
where A = percentage of audio calls, B = percentage of video calls, C = average bandwidth
used by audio calls, and D = average bandwidth used by video calls. For example, if A = 80%, B
= 20%, C = 83 kbps (based on G.711-mu codec), D = 768 kbps (based on average screen
resolution) then
(0.80 x 83) + (0.20 x 768) = 220 kbps.
Bandwidth allocation for SIP-only solution, Release 6.0
on page 26 shows one example of
bandwidth allocation between two geographical areas and SIP endpoint types.