For IEEE mode

1. Disable CEE transmission. #lldptool -Ti $interface -V CEE-DCBX enableTx=no
2. Reset the DCBX mode to be auto (start in IEEE DCBX mode) after the next lldpad restart. #lldptool -Ti $interface -V IEEE-DCBX mode=reset
3. Configure willing configuration for interface. #lldptool -Ti $interface -V ETS-CFG enableTx=yes willing=yes
4. Configure willing recommendation for interface. #lldptool -Ti $interface -V ETS-REC enableTx=yes

   Setting willing=yes for ETS-REC is not logical as it is by definition a recommendation for a willing link partner.

5. Configure willing PFC for interface. #lldptool -Ti $interface -V PFC enable=yes willing=yes enableTx=yes
6. Terminate the first instance of lldpad that was started (e.g., from initrd). Once lldpad -k has been invoked and lldpad has been restarted, subsequent invocations of lldpad -k will not terminate lldpad. #lldpad -k
7. Remove lldpad state records from shared memory. #lldpad -s
8. Restart service lldpad. #systemctl restart lldpad.service
9. Ensure CEE mode enableTx is set to no. #lldptool -ti $interface -V CEE-DCBX -c

   Output:

   enableTx=no
10. Ensure DCBX mode is set to auto. #lldptool -ti $interface -V IEEE-DCBX -c

    Output:

    mode=auto

For CEE mode

In CEE, successful negotiation requires the link partner also to be in CEE mode.

1. Enable CEE transmission. #lldptool -T -i $interface -V CEE-DCBX enableTx=yes
2. Reset the DCBX mode to be auto (start in IEEE DCBX mode) after the next lldpad restart. #lldptool -Ti $interface -V IEEE-DCBX mode=reset
3. To clean configuration of interface, set willing to off, disable priority group features, and set advertise to off. #dcbtool sc $interface pg w:0 e:0 a:0
4. To clean configuration of interface, set willing to off, disable PFC features, and set advertise to off. #dcbtool sc $interface pfc w:0 e:0 a:0
5. Configure willing, enable, and advertise configuration for priority group for interface. #dcbtool sc $interface pg w:1 e:1 a:1
6. Configure willing, enable, and advertise configuration for PFC for interface. #dcbtool sc $interface pfc w:1 e:1 a:1
7. Terminate the first instance of lldpad that was started (for example, from initrd).

   Once lldpad -k has been invoked and lldpad has been restarted, subsequent invocations of lldpad -k will not terminate lldpad.

   #lldpad -k
8. Remove lldpad state records from shared memory. #lldpad -s
9. Restart service lldpad. #systemctl restart lldpad.service
10. Ensure CEE mode enableTx is set to yes. #lldptool -ti $interface -V CEE-DCBX -c

    Output:

    enableTx=yes
11. Ensure DCBX mode is set to cee. #lldptool -ti $interface -V IEEE-DCBX -c

    Output

    mode=cee