Chapter 7. Subnet-Local Addressing

The Previous Chapter

The previous chapter provided an introduction to the layers comprising the IBA stack that handles message transmission and reception. Those layers are:

  • The ULP (Upper Layer Protocol). This is actually not part of the IBA stack. Rather, it is comprised of OS and application software that uses the stack to pass messages.

  • The Verb Layer.

  • The Transport Layer.

  • The Network Layer.

  • The Link Layer.

  • The Physical Layer.

This Chapter

This chapter defines the addresses that are used to route a packet from its source port to its destination port within an IBA subnet. It defines how ports on CAs, switches, and routers are numbered. It then defines the Local ID (LID) address space, the purpose of the LID address, ...

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