Data Center Bridging (Dcb); Overview - Qlogic FastLinQ 3400 Series User Manual

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Data Center Bridging (DCB)

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Overview

Data Center Bridging (DCB) is a collection of IEEE specified standard extensions
to Ethernet to provide lossless data delivery, low latency, and standards-based
bandwidth sharing of data center physical links. DCB supports storage,
management, computing, and communications fabrics onto a single physical
fabric that is simpler to deploy, upgrade, and maintain than in standard Ethernet
networks. DCB has a standards-based bandwidth sharing at its core, allowing
multiple fabrics to coexist on the same physical fabric. The various capabilities of
DCB allow for LAN traffic (large number of flows and not latency-sensitive), SAN
traffic (large packet sizes and requires lossless performance), and IPC
(latency-sensitive messages) to bandwidth share the same physical converged
connection and achieve the desired individual traffic performance.
DCB includes the following capabilities:
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Overview
DCB Capabilities
Configuring DCB
DCB Conditions
Data Center Bridging in Windows Server 2012
Enhanced Transmission Selection (ETS)
Priority-based Flow Control (PFC)
Data Center Bridging Capability eXchange Protocol (DCBX)
169 83840-546-00 E