ServerNet Cluster 6780 Planning and Installation Guide (G06.29+, H06.06+, J06.03+)

ServerNet Cluster 6780 Planning and Installation Guide—527301-008
G-1
G
Using the Long-Distance Option
This appendix provides information on the long-distance option between zones.
Starting with the G06.22 RVU, the HP NonStop ServerNet Switch (model 6780) can
support significantly longer zone-to-zone connections in a ServerNet cluster. Software,
firmware, and configuration files enable you to have zone-to-zone connections
between 5 and 15 kilometers (km). To accommodate the longer distances, the
supporting software sets the links to a capacity of 50 megabytes per second.
Starting with the G06.28 and H06.05 RVUs, the long-distance option is supported for
two-zone and three-zone configurations. In a three-zone configuration, it is possible for
all zone-to-zone connections to exceed 5 kilometers, or for some to exceed 5
kilometers while others are closer together.
Figure G-1 shows an example of a configuration in which some zone-to-zone
connections use the long-distance option and others do not.
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Hardware Requirements on page G-3
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Software Requirements for Two-Zone Long-Distance Topologies on page G-4
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Software Requirements for Three-Zone Long-Distance Topologies on page G-5
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Recommended SPR for Long-Distance Cluster with HP Integrity NonStop NS-
series Nodes on page G-6
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Restrictions on page G-6
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Bandwidth Considerations on page G-6
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Installation Considerations on page G-7