Users Guide

Data Center Bridging Features 1123
29
Data Center Bridging Features
Dell EMC Networking N4000 Series Switches
This chapter describes how to manage the features developed for use in data
center environments but often used in a variety of 10G applications.
The topics covered in this chapter include:
• Data Center Bridging Technology Overview
• Priority Flow Control (PFC)
• DCB Capability Exchange (DCBX)
• Enhanced Transmission Selection (ETS)
Data Center Bridging Technology Overview
The Dell EMC Networking N4000 Series switches support Data Center
Bridging (DCB) features to increase the reliability of Ethernet-based
networks in the data center.
The Dell EMC Networking N4000 Series switches support PFC, ETS, and
DCBX capability exchange, with the ability to autoconfigure from a peer
switch.
The Ethernet enhancements that DCB provides are well suited for iSCSI
applications.
Table 29-1 provides a summary of the features this chapter describes.
NOTE: The data center bridging features described in this chapter are available
on the Dell EMC Networking N4000 Series switches only.
Table 29-1. Data Center Features
Feature Description
PFC Provides a way to distinguish which traffic on a physical link is
paused when congestion occurs based on the priority of the traffic.