TANDBERG Border Controller User Guide
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8.
Bandwidth Control
8.1.
About Bandwidth Control
The TANDBERG Border Controller allows you to control endpoints' use of bandwidth on your network.
Figure 9 shows a typical network deployment: a broadband LAN, where high bandwidth calls are
acceptable; a pipe to the internet with restricted bandwidth; and two satellite offices, each with their own
restricted pipes.
In order to utilize the available bandwidth efficiently, the TANDBERG Border Controller allows you to
model your network, and bandwidth controls on individual components of the network. Bandwidth
controls may be set on a call-by-call basis and on a total concurrent usage basis.
Figure 9: Typical network deployment
8.2.
Subzones
All endpoints registered with your Border Controller are part of its local zone. As shown in Figure 9, the
local zone can contain two or more different networks with different bandwidth limitations. In order to
model this, the local zone is made up of one or more subzones. When an endpoint registers with the
Border Controller it is assigned to a subzone, based on its IP address.
By default all endpoints registering with the Border Controller are assigned to the default subzone. This
is suitable if you have uniform bandwidth available between all your endpoints. When you have differing
bandwidth provision, as in Figure 9, you should create a new subzone for each pool of endpoints. Each
subzone you create can include up to 5 subnets (based on a specified range of IP addresses).
Subzones are added and configured using the web interface via
Border Controller Configuration
>.
SubZones
, and the either selecting
Add New SubZone
, or highlighting an existing subzone and selecting
Edit
. This will take you to the screen shown in Figure 10. You can also add and configure subzones
using the following commands:
xConfiguration SubZones SubZone [1..100] Name
xConfiguration SubZones SubZone [1..100] Subnet [1..5] IP Address
xConfiguration SubZones SubZone [1..100] Subnet [1..5] IP Prefixlength
