Dell PowerEdge FX2/FX2s - Manual (Page 45)

• The CIN version of DCBx supports only PFC, ETS, and FCOE; it does not support iSCSI, backward
congestion management (BCN), logical link down (LLD), and network interface virtualization (NIV).
DCBX Error Messages
The following syslog messages appear when an error in DCBx operation occurs.
LLDP_MULTIPLE_PEER_DETECTED: DCBx is operationally disabled after detecting
more than one DCBx
peer on the port interface.
LLDP_PEER_AGE_OUT: DCBx is disabled as a result of LLDP timing out on a DCBx
peer interface.
DSM_DCBx_PEER_VERSION_CONFLICT: A local port expected to receive the IEEE, CIN,
or CEE version
in a DCBx TLV from a remote peer but received a different, conflicting DCBx
version.
DSM_DCBx_PFC_PARAMETERS_MATCH and DSM_DCBx_PFC_PARAMETERS_MISMATCH: A local
DCBx port received
a compatible (match) or incompatible (mismatch) PFC configuration from a peer.
DSM_DCBx_ETS_PARAMETERS_MATCH and DSM_DCBx_ETS_PARAMETERS_MISMATCH: A local
DCBx port received
a compatible (match) or incompatible (mismatch) ETS configuration from a peer.
LLDP_UNRECOGNISED_DCBx_TLV_RECEIVED: A local DCBx port received an unrecognized
DCBx TLV from
a peer.
Debugging DCBX on an Interface
To enable DCBx debug traces for all or a specific control paths, use the following command.
• Enable DCBx debugging.
EXEC PRIVILEGE mode
debug dcbx {all | auto-detect-timer | config-exchng | fail | mgmt | resource
| sem | tlv}
– all: enables all DCBx debugging operations.
– auto-detect-timer: enables traces for DCBx auto-detect timers.
– config-exchng: enables traces for DCBx configuration exchanges.
– fail: enables traces for DCBx failures.
– mgmt: enables traces for DCBx management frames.
– resource: enables traces for DCBx system resource frames.
– sem: enables traces for the DCBx state machine.
– tlv: enables traces for DCBx TLVs.
Data Center Bridging (DCB) 45