UID Displays the entity's unique identifier, which is generated when the the entity is created. State Displays the operational state of this SDLC Link subentity. Possible states are Inoperable The Link cannot be enabled. Off You have issued a disable command for this Link. The Link is in the inactive or pending inactive state. On You have issued an enable command for this Link. Role Displays the role this Link has taken. Values for Role are: Idle No role has been assumed yet. Primary The role is that of a primary Link. Secondary The role is that of a secondary Link.