Distributed Name Service (DNS) Management Programming Manual

Networking Restrictions
Update for D-Series Operating Systems
46958 Tandem Computers Incorporated I–9
Networking
Restrictions
This section describes restrictions on network topology and inter-node compatibility.
Connections Permitted The permitted connections in hybrid networks of D-series and C-series systems are as
follows:
High-PIN processes in a D-series system can access low-PIN processes running in
a D-series system.
Low-PIN processes in a D-series system can access high-PIN processes running in
a D-series system.
Processes in a C-series system can only access the low-PIN processes in a D-series
system.
Figure 1-1 illustrates connections permitted between high-PIN and low-PIN processes.