D 14049.01
07.2007 51
D 14049.01
07.2007 51
Introduction Getting
Started
System
Overview
System
Configuration
H.323 & SIP
Configuration
Registration
Control
Zones and
Neighbors
Call
Processing
Firewall
Traversal
Bandwidth
Control Maintenance Appe ndices
Zones and
Neighbors
Managing Zones, Neighbors and Alternates
DNS Zone
DNS zones allow you to locate endpoi nts via a DNS lookup.
You can create one or more DNS zones based o n pattern
matching of the endpoints’ aliases .
Once you have configured one or m ore DNS zones, you can:
apply transforms to alias searc h requests directed to that
group of endpoints
control the bandwidth used f or calls between your local VCS
and each group of DNS endpoints.
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About Zones
A zone is a collection of endpoints, e ither all registered to a
single system (e.g. VCS, gatekeeper or Bo rder Controller), or
of a certain type such as EN UM or DNS. The use of zones
enables you to:
use links to determine whether call s can be made between
your local subzones and these oth er zones
manage the bandwidth of calls b etween your local subzones
and endpoints in other zones
more easily search for aliases that a re not registered locally
apply transforms to aliases befo re searching for them.
Your VCS allows you to configure up to 200 zones o f 5 different
types. It also has a non-c onfigurable Default Zon e.
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ZonesDefault Zone
Any incoming calls from endpoi nts that are not recognized as
belonging to any of the existing co nfigured zones are deemed to
be coming from the Default Zon e.
The VCS comes pre-con figured with the Default Zo ne and
default links between it and bot h the Default Subzone and the
Traversal Subzone.
The purpose of the Default Zon e is to allow you to manage
incoming calls from unrecog nized endpoints to the VCS. You
can do this by:
deleting the default links. This w ill prevent any incoming
calls from unrecognized endp oints
applying pipes to the default li nks. This will allow you to
control the bandwidth cons umed by incoming calls from
unrecognized endpoints.
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Neighbor Zone
A Neighbor zone could be a collec tion of endpoints registere d
to another system (e.g. VCS, gatekeeper, or Bor der Controller),
or it could be a SIP device. The othe r system is referred to
as a neighbor. Neighbors can be pa rt of your own enterprise
network, part of a separa te network, or even stand -alone
systems.
You create a neighbor relationship wit h the other system by
adding it as a neighbor zone on your l ocal VCS. Once you have
added it, you can:
query the neighbor abou t its endpoints
apply transforms to any querie s before they are sent to the
neighbor
control the bandwidth used f or calls between your local VCS
and the neighbor zone.
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Traversal Client Zone
In order to be able to traverse a fir ewall, the VCS must be
neighbored with a travers al server (for example a TANDBERG
Border Controller or anothe r VCS with the Border Controll er
option enabled).
In this situation your local VCS is a tr aversal client, so you
neighbor with the travers al server by creating a trave rsal client
zone on your local VCS. You then configu re it with details of the
corresponding zone on the tr aversal server.
Once you have neighbored wit h the traversal server you c an:
use the neighbor as a traversal s erver
query the traversal ser ver about its endpoints
apply transforms to any querie s before they are sent to the
traversal server
control the bandwidth used f or calls between your local VCS
and the traversal server.
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Traversal Server Zone
The VCS may be enabled to act as a trav ersal server by
installing the Border Contro ller option (contact your TANDBER G
representative for fur ther information).
In order to act as a traversal ser ver, the local VCS must be
neighbored with each system (e.g. V CS or gatekeeper) that will
be its traversal client. To do this, you cr eate a traversal server
zone on your local VCS and configu re it with the details of the
corresponding zone on the tr aversal client.
Once you have neighbored wit h the traversal client you can:
provide firewall traversal s ervices to the travers al client
query the traversal clien t about its endpoints
apply transforms to any querie s before they are sent to the
traversal client
control the bandwidth used f or calls between your local VCS
and the traversal client.
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ENUM Zone
ENUM zones allow you to locate endpo ints via an ENUM lookup.
You can create one or more ENUM zones base d on the ENUM
DNS suffix used and/or by pattern m atching of the endpoints’
aliases.
Once you have configured one or m ore ENUM zones, you can:
apply transforms to alias searc h requests directed to that
group of endpoints
control the bandwidth used f or calls between your local VCS
and each group of ENUM endpoint s.
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The default links can be reinstat ed at any time via the
command:
xCommand DefaultLinksAdd
In order for firewall travers al to work, the traversal
server and the traversal cl ient must each be configured
with the other’s details.
TANDBERG VIDEO COMMUNICATION SERVER
ADMINISTRATOR GUIDE