TANDBERG D14049.01 User Manual

Page of 187
D 14049.01
07.2007
8
TANDBERG 
VIDEO COMMUNICATION SERVER 
ADMINISTRATOR GUIDE
Bandwidth Control
TANDBERG 
VIDEO COMMUNICATION SERVER 
ADMINISTRATOR GUIDE
Pipes are used to restrict the bandwidth of a link.  When a pipe is applied to a link, it will restrict 
the bandwidth of calls made between the two nodes of the link - the restrictions will apply to calls 
in either direction.
Normally a single pipe would be applied to a single link.  However, one or more pipes may be 
applied to one or more links, depending on how you wish to model your network.
One Pipe, One Link
Applying a single pipe to a single link is useful when you wish to apply specific limits to calls 
between a subzone and another specific subzone or zone.
One Pipe, Two or More Links
Each pipe may be applied to multiple links.  This is used to model the situation where one site 
communicates with several other sites over the same broadband connection to the Internet. A 
pipe should be configured to represent the broadband connection, and then applied to all the 
links.  This will allow you to configure the bandwidth options for calls in and out of that site.
Two Pipes, One Link
Each link may have up to two pipes associated with it.  This is used to model the situation where 
the two nodes of a link are not directly connected, for example two sites that each have their own 
broadband connection to the Internet. Each connection should have its own pipe, meaning that a 
link between the two nodes should be subject to the bandwidth restrictions of both pipes.
Automatically Created Links
Whenever a new subzone or zone is created, links are automatically created as follows:
New zone/subzone type
Default links are created to...
Subzone
Default Subzone
 and  
Traversal Subzone
Neighbor zone
Default Subzone
 and 
Traversal Subzone
DNS Zone
Default Subzone
 and 
Traversal Subzone
ENUM Zone
Default Subzone
 and 
Traversal Subzone
Traversal Client Zone
Traversal Subzone
Traversal Server Zone
Traversal Subzone
Default Links
Applying Pipes to Links
Bandwidth Control
!
Calls will fail if links are not configured correctly.
Pre-Configured Links
The VCS is shipped with the Default Subzone, Traversal Subzone and Default Zone already 
created, and with links pre-configured between the three.  You may delete or amend these default 
links if you need to model restrictions of your network.
If any of these links have been deleted, they may all be automatically restored via:
xCommand DefaultLinksAdd
To restore these links via the web interface, you must do so manually.  See 
 for 
instructions on how to do this. 
About Default Links
If a subzone has no links configured, then endpoints within the subzone will only be able to call 
other endpoints within the same subzone.  For this reason, the VCS comes shipped with a set 
of pre-configured links and will also automatically create new links each time you create a new 
subzone.
You can edit any of these default links in the same way you would edit manually configured 
links.  See 
 for more information.