Administrator Guide

NOTE: To configure the DCBx port role the interfaces use to exchange DCB information, use the DCBx port-role
command in INTERFACE Configuration mode (Step 3).
4. Configure the PFC and ETS TLVs that advertise on unconfigured interfaces with a manual port-role.
PROTOCOL LLDP mode
[no] advertise DCBx-tlv {ets-conf | ets-reco | pfc} [ets-conf | ets-reco | pfc] [ets-conf |
ets-reco | pfc]
•
ets-conf: enables transmission of ETS Configuration TLVs.
• ets-reco: enables transmission of ETS Recommend TLVs.
• pfc: enables transmission of PFC TLVs.
NOTE: You can configure the transmission of more than one TLV type at a time. You can only enable ETS recommend
TLVs (ets-reco) if you enable ETS configuration TLVs (ets-conf). To disable TLV transmission, use the no form
of the command; for example, no advertise DCBx-tlv pfc ets-reco.
The default is All TLV types are enabled.
5. Configure the Application Priority TLVs that advertise on unconfigured interfaces with a manual port-role.
PROTOCOL LLDP mode
[no] advertise DCBx-appln-tlv {fcoe | iscsi}
• fcoe: enables the advertisement of FCoE in Application Priority TLVs.
• iscsi: enables the advertisement of iSCSI in Application Priority TLVs.
The default is Application Priority TLVs are enabled and advertise FCoE and iSCSI.
NOTE:
To disable TLV transmission, use the no form of the command; for example, no advertise DCBx-appln-
tlv iscsi.
6. Configure the FCoE priority advertised for the FCoE protocol in Application Priority TLVs.
PROTOCOL LLDP mode
[no] fcoe priority-bits priority-bitmap
The priority-bitmap range is from 1 to FF.
The default is 0x8.
7. Configure the iSCSI priority advertised for the iSCSI protocol in Application Priority TLVs.
PROTOCOL LLDP mode
[no] iscsi priority-bits priority-bitmap
The priority-bitmap range is from 1 to FF.
The default is 0x10.
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.
Data Center Bridging (DCB)
261