Expand Configuration and Management Manual (G06.24+)

Planning for ServerNet Clusters
Expand Configuration and Management Manual—523347-008
4-6
ServerNet Clusters Coexisting With ATM or IP
Networks
Line-handler passthrough traffic uses at least twice as much processor time as does
direct traffic. Overall network fault tolerance is not preserved. If \HHH becomes
unavailable, the FOX ring and the ServerNet cluster are isolated from each other.
ServerNet Clusters Coexisting With ATM or IP
Networks
Interoperability is supported between a ServerNet cluster and an ATM network using
ATM adapters or between a ServerNet cluster and an IP network using Ethernet, Fast
Ethernet, Gigabit Ethernet, or ATM adapters. These technologies allow the following:
•
Connection over distances greater than five kilometers
•
Use of TCP for internode communications (the IP technology)
•
Reduction of line costs
•
Interoperability between NonStop K-series servers and NonStop S-series servers
(the IP technology)
The topics addressed in this subsection include:
•
Considerations for ServerNet Clusters Coexisting With ATM or IP on page 4-7
•
Examples of ServerNet Clusters Coexisting With ATM or IP on page 4-7
For information about IP and ATM adapters, see the following manuals:
TCP/IPv6 Configuration and Management Manual
TCP/IP (Parallel Library) Configuration and Management Manual
TCP/IP Configuration and Management Manual
ATM Configuration and Management Manual
Figure 4-2. ServerNet Cluster and FOX Ring Connected By One NonStop
S-Series System (Not Recommended)
\BBB #2
NonStop
S-series
Cluster
Switch
VST070
\AAA #1
NonStop
S-series
\FFF #6
NonStop
S-series
\DDD #4
NonStop
S-series
\EEE #5
NonStop
K-series
\HHH #8
NonStop
S-series
\CCC #3
NonStop
K-series
FOX Ring ServerNet Cluster