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198 IBM 9077 SP Switch Router: Get Connected to the SP Switch
Configuration assumptions:
• The RS/6000 SP is partitioned in to two or more partitions (two partitions
for this scenario).
Note:
Be careful when choosing the partition layout. In every partition, a
free Switch chip port to connect the SP Switch Router Adapter card is
necessary.
• Every partition establishes a single subnet.
Note:
Be careful when subnetting your SP partitions. Although not
necessary when you simply partition your SP, it is required that every
partition in effect form in a single subnet to establish a connection via an
SP Switch Router.
All other subnetting does not work.
• ARP should be enabled on the SP Switch network to provide the greatest
flexibility in assigning IP addresses (strongly recommended!).
Figure 64. Partition-to-Partition Connection with an SP Switch Router
GRF 400
SP Switch
SP Switch Router
Adapter card 2
SP Switch Router
Adapter card 1
Node 11
Node 12
Node 15
SP2
partition 2
partition 1
partition 1
partition 2
SP processor node
SP processor node
SP processor node