O'Reilly logo

InfiniBand Network Architecture by MindShare, Inc., Tom Shanley

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

SM States

Discovering State

Refer to Figure 30-2 on page 860. There are three circumstances under which an SM enters the Discovering state:

  • Upon startup.

  • If it doesn't get a response from the Master SM when it performs a SubnGet(SMInfo) to read the Master's SMInfo.ActCount element.

  • Upon receipt of a SMP Control Packet commanding it to enter the Discovering state.

Figure 30-2. Discovering State

Once it has entered the Discovering state, the SM uses SMPs to discover all of the nodes in the subnet. During this process, the SM may or may not encounter another device that contains an SM. There are two possible cases:

Case 1. No other SMs. If it has completed ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required