Chapter 6. Multiple RS/6000 SPs and One SP Switch Router

In this configuration, two RS/6000 SP systems are connected to a single SP Switch Router. This enables both SPs to communicate deploying the SP Switch data transfer rate and/or to share other network resources. See Figure 65 for an overview.

 

partition

 

SP processor node

 

SP Switch

SP Switch Router

SP processor node

Adapter card 1

 

GRF 1600

SP 2

 

 

partition

SP Switch Router

SP processor node

Adapter card 2

 

 

SP Switch

 

SP processor node

 

SP 21

Figure 65. Two RS/6000 SPs Connected to GRF 1600

6.1 RS/6000 SP Switch - RS/6000 SP Switch Connection

This scenario corresponds to Figure 65. It might be used to connect two RS/6000 SPs to exploit the SP Switch data transfer rate. Because of the switch cable length limit of 20m, this scenario is only applicable when both SPs have a maximum distance of 40m. In all other cases you will need two routers and a corresponding high speed connection (refer to Chapter 7, “Multiple RS/6000 SPs and Multiple GRFs” on page 209).

Configuration assumptions:

Both SP Switch Router Adapter cards have been installed according to Section 3.7, “Step-by-Step Media Card Configuration” on page 86, and work properly.

Note: When configuring the second SP Switch Router Adapter card, ensure that both Control Workstations are defined as SNMP managers in

© Copyright IBM Corp. 1998

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IBM 9077 manual Multiple RS/6000 SPs and One SP Switch Router, RS/6000 SP Switch RS/6000 SP Switch Connection, 203