HP 3000 Manuals

HP Predictive Support CE Guide For HP 3000 Series 900

Network Overview 

EFT provides X.25 connectivity to the HP Response Center for customer
sites with leased line, PDN, or private network access.  Before you can
begin to configure the network connections between the customer's node(s)
and the HP Response Center Node, you need to understand the network
topology in order to correctly configure each node at the customer's
site.  The correct configuration must also occur at the HP Response
Center Node.

The following example is a typical network showing the customer's node,
called the Predictive Gateway Node, connecting to the HP Response Center
Node using X.25.  The Predictive Gateway Node can be an HP 3000 or an HP
Router ER. The addresses used are only examples. 


                                Figure H-1.   

Our example shows the Predictive Gateway Node at the customer's site
accessing the HP X.25 NETWORK through a PDN or a private X.25 network.
There is also an X.25 Switching Node, such as a Model 45 or 80 switch,
that connects the customer's Predictive Gateway Node to the HP X.25
NETWORK. In our example, for transmissions from the customer's site to
the HP Response Center Node, the X.25 Switching Node will translate the
X.25 address (1234 5678 06 0200) of the HP Response Center Node to 8700
5555 555 555 in order to maintain the confidentiality of HP's private 
Data Networks Identification Code (DNIC). The DNIC code is the first four
digits of an X.25 address.

Other Networks 

In many cases, the customer also has other networks consisting of nodes
that are connected to the Predictive Gateway Node via LAN or X.25.  These
nodes will be referred to as the satellite nodes.  In our example, this
network will be referred to as the LAN network and consists of three
satellite nodes, Satellite Node 1, 2, and 3.  These satellite nodes
transfer Predictive files or data by using the Predictive Gateway Node as
a neighbor gateway to forward information to the X.25 network.

MPE/iX 5.0 Documentation