Chapter 30. Multiple SMs

The Previous Chapter

The previous chapter provided a detailed description of:

  • SM MAD formats.

  • SM methods.

  • SM attributes.

  • SM traps.

  • SMA Notice support.

This Chapter

This chapter describes all of the issues related to multiple SMs in the same subnet. Specifically, it covers:

  • 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.

The Next Chapter

The next chapter provides a detailed description of how ...

Get InfiniBand Network Architecture now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.