1. A network device comprising: a first processing entity configurable to transmit a packet comprising destination information, the destination information comprising a destination identifier and role identification information, the destination identifier identifying a set of one or more destinations, the role identification information identifying a role; and a second processing entity, wherein the second processing entity is further configurable to: receive the packet; and determine, based upon the destination information of the packet, that the second processing entity is an intended recipient for the packet if the second processing entity is identified by the destination identifier and the second processing entity operates in a first role specified by role identification information.