Chapter 31. Discovery

The Previous Chapter

The previous chapter described all of the issues related to multiple SMs in the same subnet. Specifically, it covered:

  • Issues that are outside the scope of the specification.

  • Multi-vendor SM failover is not supported.

  • A subnet can have more than one SM.

  • How the SM issues requests (using SMPs).

  • An introduction to the SM states.

  • Standby SMs monitor the Master SM's heartbeat.

  • The purpose of SM Control Packets and how they are issued.

  • When there are multiple Master SMs.

  • A detailed description of the SM states.

This Chapter

This chapter provides a detailed description of how the SM discovers devices during startup, as well as how it issues attribute accesses to devices that have not yet been assigned LID addresses. ...

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