Users Guide

11–QLogic Teaming Services
Executive Summary
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This section describes the technology and implementation considerations when
working with the network teaming services offered by the QLogic software
shipped with Dell’s servers and storage products. The goal of QLogic teaming
services is to provide fault tolerance and link aggregation across a team of two or
more adapters. The information in this document is provided to assist IT
professionals during the deployment and troubleshooting of system applications
that require network fault tolerance and load balancing.
Glossary
Table 11-1 defines terminology used in teaming.
Table 11-1. Glossary
Term Definition
ARP address resolution protocol
QCS QLogic Control Suite
QLASP QLogic Advanced Server Program (intermediate driver)
DNS domain name service
G-ARP gratuitous address resolution protocol
Generic Trunking
(FEC/GEC)/802.3ad-
Draft Static
Switch-dependent load balancing and failover type of team in
which the intermediate driver manages outgoing traffic and the
switch manages incoming traffic
HSRP hot standby router protocol
ICMP Internet control message protocol
IGMP Internet group management protocol
IPv6 Version 6 of the IP
iSCSI Internet small computer systems interface
Layer 2 Network traffic that is not offloaded, and where hardware only
performs Layer 2 operations on the traffic. Layer 3 (IP) and
Layer 4 (TCP) protocols are processed in software.
Layer 4 Network traffic that is heavily offloaded to the hardware, where
much of the Layer 3 (IP) and Layer 4 (TCP) processing is done
in the hardware to improve performance.
LACP link aggregation control protocol
link aggregation
(802.3ad)
Switch-dependent load balancing and failover type of team with
LACP in which the intermediate driver manages outgoing traffic
and the switch manages incoming traffic