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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.
Verifying the DCB Configuration
To display DCB configurations, use the following show commands.
Table 13. Displaying DCB Configurations
Command Output
show dcb [stack-unit unit-number]
Displays the data center bridging status, number of PFC-
enabled ports, and number of PFC-enabled queues. On the
Data Center Bridging (DCB) 241