NonStop S-Series Planning and Configuration Guide (G06.26+)

Contents
HP NonStop S-Series Planning and Configuration Guide—523303-017
iii
2. The ServerNet Communications Network
CRU/FRU Replacement Tools (continued)
Subsystem Control Facility (SCF) 1-37
HP Tandem Failure Data System (TFDS) 1-38
Hardware Tools 1-38
ServerNet Architecture 1-39
ServerNet Adapter 1-40
ServerNet Addressable Controller (SAC) 1-40
ServerNet Link 1-41
ServerNet Node 1-41
ServerNet Packet 1-41
ServerNet Router 1-41
Wormhole Routing 1-42
ServerNet Fabric 1-43
Networking 1-43
Ethernet 1-43
Protocols 1-44
IP Addresses 1-45
2. The ServerNet Communications Network
Flexibility of the ServerNet Architecture 2-2
Concurrent Messages 2-2
Interconnected Components 2-2
Fault Tolerance for Complex Operations 2-2
Diagramming the ServerNet Communications Network 2-3
Simplified Logical Diagrams 2-3
Detailed Logical Diagrams 2-4
How Logical Diagrams Relate to Server Hardware 2-7
Comparison to NonStop K-Series Systems 2-10
3. Topologies
Tetrahedral Topology 3-1
ServerNet Topologies 3-3
Tetra 8 Topology 3-4
Tetra 16 Topology 3-5
Topology Configuration Considerations 3-9
Comparing the Tetra 8 and Tetra 16 Topologies 3-11
Tetra 8 Topology Configurations 3-11
Tetra 16 Topology Configurations 3-12
Tetra 8 Topology Features 3-13
Tetra 16 Topology Features 3-13