Command 
History
This guide is platform-specific. For command information about other platforms, 
refer to the relevant Dell Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version 9.0.2.0 Introduced on the S6000.
Version 9.2.
(0.0)
Down status messages added.
Version 
8.3.19.0
Introduced on the S4820T.
Version 
8.3.12.0
Introduced on the S4810.
Version 
8.3.16.0
Introduced on the MXL 10/40GbE Switch IO Module.
Usage 
Information
To clear DCBX frame counters, use the clear dcbx counters interface 
stack-unit/port command.
The following describes the show interface dcbx detail command shown in 
the following example.
Field Description
Interface Interface type with chassis slot and port number.
Port-Role Configured the DCBX port role: auto-upstream, auto-
downstream, config-source, or manual.
DCBX Operational 
Status
Operational status (enabled or disabled) used to elect a 
configuration source and internally propagate a DCB 
configuration. The DCBX operational status is the 
combination of PFC and ETS operational status.
Configuration 
Source
Specifies whether the port serves as the DCBX configuration 
source on the switch: true (yes) or false (no).
Local DCBX 
Compatibility 
mode
DCBX version accepted in a DCB configuration as 
compatible. In auto-upstream mode, a port can only receive 
a DCBX version supported on the remote peer.
Local DCBX 
Configured mode
DCBX version configured on the port: CEE, CIN, IEEE v2.5, 
or Auto (port auto-configures to use the DCBX version 
received from a peer).
Peer Operating 
version
DCBX version that the peer uses to exchange DCB 
parameters.
Local DCBX TLVs 
Transmitted
Transmission status (enabled or disabled) of advertised DCB 
TLVs (see TLV code at the top of the show command 
output).
Data Center Bridging (DCB)
565