Users Guide

Switch Feature Overview 93
Data Center Bridging Exchange (DBCx) Protocol
The Data Center Bridging Exchange Protocol (DCBx) is used by DCB
devices to exchange configuration information with directly connected peers.
The protocol is also used to detect misconfiguration of the peer DCB devices
and, optionally, for configuration of peer DCB devices. For information about
configuring DCBx settings, see "Data Center Bridging Features" on
page 1123. DCBx is a link-local protocol and operates only on individual links.
Enhanced Transmission Selection
Enhanced Transmission Selection (ETS) allows the switch to allocate
bandwidth to traffic classes and share unused bandwidth with lower-priority
traffic classes while coexisting with strict-priority traffic classes. ETS is
supported on the Dell EMC Networking N4000 Series switches and can be
configured manually or automatically using the auto configuration feature.
For more information about ETS, see "Enhanced Transmission Selection" on
page 1139.
Cisco Protocol Filtering
The Cisco Protocol Filtering feature (also known as Link Local Protocol
Filtering) filters Cisco protocols that should not normally be relayed by a
bridge. The group addresses of these Cisco protocols do not fall within the
IEEE defined range of the 802.1D MAC Bridge Filtered MAC Group
Addresses (01-80-C2-00-00-00 to 01-80-C2-00-00-0F).
For information about configuring LLPF, settings see "Port-Based Traffic
Control" on page 921.
NOTE: This feature is available on the Dell EMC Networking N4000 Series
switches only.
NOTE: This feature is available on the Dell EMC Networking N4000 Series
switches only.