Service Manual

Version Description
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
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 Congured the DCBX port role: auto-upstream, auto-downstream, cong-source, or
manual.
DCBX Operational
Status
Operational status (enabled or disabled) used to elect a conguration source and internally
propagate a DCB conguration. The DCBX operational status is the combination of PFC
and ETS operational status.
Conguration
Source
Species whether the port serves as the DCBX conguration source on the switch: true
(yes) or false (no).
Local DCBX
Compatibility mode
DCBX version accepted in a DCB conguration as compatible. In auto-upstream mode, a
port can only receive a DCBX version supported on the remote peer.
Local DCBX
Congured mode
DCBX version congured on the port: CEE, CIN, IEEE v2.5, or Auto (port auto-congures
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).
Local DCBX Status:
DCBX Operational
Version
DCBX version advertised in Control TLVs.
Local DCBX Status:
DCBX Max Version
Supported
Highest DCBX version supported in Control TLVs.
Local DCBX Status:
Sequence Number
Sequence number transmitted in Control TLVs.
Local DCBX Status:
Acknowledgment
Number
Acknowledgement number transmitted in Control TLVs.
Local DCBX Status:
Protocol State
Current operational state of the DCBX protocol: ACK or IN-SYNC.
Peer DCBX Status:
DCBX Operational
Version
DCBX version advertised in Control TLVs received from the peer device.
Peer DCBX Status:
DCBX Max Version
Supported
Highest DCBX version supported in Control TLVs received from the peer device.
Data Center Bridging (DCB) 499