I'm trying to configure DCB in back-to-back scenario. System details OS :- CentOS 7.2 kernel 3.10.0-327.el7.x86_64 lldpad:- lldpad v0.9.46 dcbtool:- v0.9.46 ixgbe :- ixgbe-4.3.15
steps followed:- # modporbe ixgbe # service lldpad start Redirecting to /bin/systemctl start lldpad.service # service lldpad status Redirecting to /bin/systemctl status lldpad.service ● lldpad.service - Link Layer Discovery Protocol Agent Daemon. Loaded: loaded (/usr/lib/systemd/system/lldpad.service; disabled; vendor preset: disabled) Active: active (running) since Tue 2016-07-05 05:49:12 EDT; 1s ago Main PID: 133737 (lldpad) CGroup: /system.slice/lldpad.service └─133737 /usr/sbin/lldpad -t Jul 05 05:49:12 localhost.localdomain systemd[1]: Started Link Layer Discovery Protocol Agent Daemon.. Jul 05 05:49:12 localhost.localdomain systemd[1]: Starting Link Layer Discovery Protocol Agent Daemon.... # dcbtool gc p3p2 dcb Command: Get Config Feature: DCB State Port: p3p2 Status: Successful DCB State: off # dcbtool sc p3p2 dcb on Command: Set Config Feature: DCB State Port: p3p2 Status: Successful # dcbtool gc p3p2 dcb Command: Get Config Feature: DCB State Port: p3p2 Status: Successful DCB State: on Similar configuration on another system. But as soon as I do "ifconfig p3p2 up and check dcb # dcbtool gc p3p2 dcb Command: Get Config Feature: DCB State Port: p3p2 Status: Successful DCB State: off Initially suspecting issue with lldpad daemon/ixgbe driver. I replaced them (downloaded from repo) with latest packages. Same behaviour observed. - Tried disabling other dcb features like fcoe. Same issue. - Disabled selinux etc Can any 1 help me regarding this.