The switch name is used to support a host that has more than one active TCP/IP interface, each with its own host name. The switch name is stored in the db2nodes.cfg file.
The switch name is only used for RS/6000 SP machines that have a primary host name that is either an Ethernet or a token-ring name, and DB2 Universal Database Extended Enterprise Edition is using the alternative switch name. If the switch name was not specified in the db2nodes.cfg file, it is the same as the host name.
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