125
D14049.05
February 2009
Grey Headline
(continued)
TANDBERG
VIDEO COMMUNICATIONS SERVER
ADMINISTRATOR GUIDE
Introduction
Getting started
Overview and
status
System
configuration
VCS
configuration
Zones and
neighbors
Call
processing
Bandwidth
control
Firewall
traversal
Appendices
Applications
Maintenance
Links
Subzones are connected to other subzones
and zones via links. For a call to take place,
the endpoints involved must each reside in
subzones or zones that have a link between
them. The link does not need to be direct; the
two endpoints may be linked via one or more
intermediary subzones.
Links are used to calculate how a call is routed
over the network and therefore which zones
and subzones are involved and how much
bandwidth is available. If multiple routes are
possible, your VCS will perform the bandwidth
calculations using the one with the fewest
links.
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, when a subzone is
created, it is automatically given certain links.
See
Default links
for more information.
Creating and editing links
About links
Creating a new link
To create a new link:
VCS configuration > Bandwidth > Links
•
.
You will be taken to the
Links
page.
Click
New
.
You will be taken to the
Create link
page.
xCommand LinkAd
•
d
Editing an existing link
To edit a link:
VCS configuration > Bandwidth > Links
•
.
You will be taken to the
Links
page.
Click
View/Edit
.
You will be taken to the
Edit link
page.
xConfiguration
•
Bandwidth Link
Link configuration options
Name
Enter the name you wish to assign to this link.
Node 1, Node 2
Select the names of the two subzones, or the
subzone and zone, between which you wish to
create a link.
Pipe 1, Pipe 2
If you wish to apply bandwidth limitations to
this link, select the pipe(s) to be applied.
For more information, see
Applying pipes to
links
.
Default links
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.
!
Calls will fail if links are not configured
correctly. You can check whether a
call will succeed, and what bandwidth
will be allocated to it, using the command
xCommand CheckBandwidt
h
.
Pre-configured links
The VCS is shipped with the Default Subzone,
Traversal Subzone and Default Zone already
created, and with default links pre-configured
between the three. These links will be named
as follows:
DefaultSZtoTraversalSZ
•
DefaultSZtoDefaultZ
•
TraversalSZtoDefaultZ
•
You can edit any of these default links in
the same way you would edit manually
configured links. See
Editing links
for
more information.
If any of these links have been deleted, they
may all be automatically restored using:
xCommand DefaultLinksAdd
•
To restore these links using the web interface,
you must re-create them manually. See
Creating links
for instructions on how to do this.
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
Along with the pre-configured default links this
ensures that, by default, any new subzone or
zone has connectivity to all other subzones and
zones. You may rename, delete and amend any
of these default links. See
Editing links
for more
information.
