Routing elements
114
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
5. 2. 1
Trunk Groups of Network Interfaces
General Rules and Settings
A network interface can only be assigned to a single trunk group.
A trunk group contains either analogue or digital network interfaces (the network
interface entered first is decisive).
The digital network interfaces of a trunk group lead either
• to the permanently networked PISN if
Network type
=
private
is set,
• to the public network if
Network type
=
public
is set.
The following rules apply to the setting of the transmission protocol (
Protocol
) for
the network interfaces of a trunk group:
• Trunk groups with
Network type
=
private
are usually set to the PSS1 (QSIG) pro-
tocol.
• Trunk groups with
Network type
=
public
are set to protocol DSS1.
Tip:
It is advisable to enter network interfaces that have the same destina-
tion in the same trunk group, for example to set up one trunk group for
the public network, one trunk group for PINX 1 and one trunk group
for PINX 2, etc.
Default settings
Newly set up digital network interfaces are automatically entered in trunk group 1.
Trunk group 1 is set to
Network type
=
public
and
Protocol
=
DSS1
.
Newly set up analogue network interfaces are automatically entered in trunk
group 2.
Trunk group 2 is set to
Network type
=
public
.
