User Manual

Rev 2.1-1.0.6

Mellanox Technologies

Glossary

The following is a list of concepts and terms related to InfiniBand in general and to Subnet Man-

agers in particular. It is included here for ease of reference, but the main reference remains the

InfiniBand Architecture Specification.

SDP Sockets Direct Protocol

SL Service Level

SRP SCSI RDMA Protocol

MPI Message Passing Interface

EoIB Ethernet over Infiniband

QoS Quality of Service

ULP Upper Level Protocol

VL Virtual Lane

vHBA Virtual SCSI Host Bus adapter

uDAPL User Direct Access Programming Library

Table 3 - Glossary (Sheet 1 of 2)

Channel Adapter

(CA), Host Channel

Adapter (HCA)

An IB device that terminates an IB link and executes transport

functions. This may be an HCA (Host CA) or a TCA (Target

CA).

HCA Card A network adapter card based on an InfiniBand channel

adapter device.

IB Devices Integrated circuit implementing InfiniBand compliant commu-

nication.

IB Cluster/Fabric/

Subnet

A set of IB devices connected by IB cables.

In-Band A term assigned to administration activities traversing the IB

connectivity only.

Local Identifier (ID) An address assigned to a port (data sink or source point) by the

Subnet Manager, unique within the subnet, used for directing

packets within the subnet.

Local Device/Node/

System

The IB Host Channel Adapter (HCA) Card installed on the

machine running IBDIAG tools.

Table 2 - Abbreviations and Acronyms (Sheet 2 of 2)

Abbreviation / Acronym Whole Word / Description