Tandberg Data N3 - Manual (Page 24)

TANDBERG Gatekeeper User Manual
18
In Figure , the endpoints in the enterprise register with the Gatekeeper, whilst those in the
branch and home office register with the Border Controller.
Border
Controller
Branch
Office
Home
Office
Traversal
sub-zone
Home
sub-zone
Branch
sub-zone
Enterprise
Pipe Home
Pipe
Branch
Pipe
Enterprise
Traversal
Zone
Figure 11 Border Controller example configuration
Figure 11 shows how the Border Controller could be configured for the deployment in Figure
10. The introduction of the firewalls means that there is no longer any direct connectivity
between the Branch and Home offices. All traffic must be routed through the Border
Controller. This is shown by the absence of a link between the Home and Branch subzones.
The Traversal Zone in Figure 11 represents the Enterprise Gatekeeper. The Border Controller
will consume bandwidth from the Traversal Zone for all calls placed to endpoints managed by
the Enterprise Gatekeeper. In this example we have assumed that there is no bottleneck on
the link between the Border Controller and the Enterprise network, so have not placed a pipe
on this link. If you want to limit the amount of traffic flowing through your firewall, you could
provision a pipe on this link.
The traversal subzone in Figure 11 may be used to control the amount of traffic flowing
through the Border Controller itself.
Because the Gatekeeper is only managing endpoints on the LAN, its configuration is simpler
as shown in Figure 12.