An updated lldpad package that fixes dcbx negotiation issues is now available for Red Hat Enterprise Linux 6.
The lldpad package adds Link Layer Discovery Protocol (LLDP) support for all ports.
Previously, lldpad failed to initiate a dcbx negotiation when a "link down" netlink event message was dropped or lost. As a result, a boot failure occurred and the system got suspended. With this update, lldpad dcbx negotiation works as expected.
All lldpad users are advised to upgrade to this updated package, which resolves this issue.