Configure LLDP DCBX TLVs

You can enable or disable the transmission of DCBX TLV (type, length, value) types on a port. This example uses port 0/21.

1. Enable DCBX TLVs for ETS, PFC, and the application.

   SEFOS# configure terminal
   SEFOS(config)# interface extreme-ethernet 0/21
   SEFOS(config-if)# lldp tlv-select dcb1tlv enhanced-transmission-selection priority-flow-control application-etype-fcoe
   SEFOS(config)# end

2. View the TLV settings.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb enhanced-transmission-selection
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Enhanced Transmission Selection
   Enable           :      true
   Advertise        :      true
   Willing          :      false
   Priority         :      0       1       2       3       4       5       6     7
   Traffic Class   :      0       1       2       3       4       5       6     7
   Bandwidth        :      40      20      40      0       0       0       0     0 
   Algorithm        :      2       2       2       2       2       2       2      2
   Max Traffic Class:   8

3. View the PFC settings.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb priority-flow-control
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Priority Flow Control
   Enable           :      true
   Advertise        :      true
   Willing          :      false
   Priority Mask     :     0      0      0      0      1      0      0     0
   Max Traffic Class:   8

4. View the application settings.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb application-etype-fcoe
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Application FCoE
   Enable           :      true
   Advertise        :      true
   Priority Map   :        0       0       0       0       1       0       0      0

5. Disable DCBX TLVs for ETS, PFC, and the application.

   SEFOS# configure terminal
   SEFOS(config-if)# no lldp tlv-select dcb1tlv enhanced-transmission-selection priority-flow-control application-etype-fcoe
   SEFOS(config-if)# end

6. View the TLV settings after disabling them for the ETS.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb enhanced-transmission-selection
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Enhanced Transmission Selection
   Enable           :      false
   Advertise        :      false
   Willing          :      false
   Priority         :      0       1       2       3       4       5       6      7
   Traffic Class   :     0      1      2      3      4      5      6     7
   Bandwidth       :     40     20     40     0      0      0      0     0
   Algorithm        :      2       2       2       2       2       2       2      2
   Max Traffic Class:   8

7. View the TLV settings after disabling them for the PFC.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb priority-flow-control
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Priority Flow Control
   Enable           :      false
   Advertise        :      false
   Willing          :      false
   Priority Mask    :     0      0      0      0      1      0      0     0
   Max Traffic Class:   8

8. View the TLV settings after disabling them for the PFC.

   SEFOS# show interfaces extreme-ethernet 0/21 dcb application-etype-fcoe
    
   Port             :      Ex0/21
   Show Type        :      Admin Config
   Feature          :      Application FCoE
   Enable           :      false
   Advertise        :      false
   Priority Map :     0      0      0      0      1      0      0     0